IDF No 1803 Integrated Thermocouple Waveguide Sensor System and Method to Measure Physical Properties of Waveguide Material and Surroundings

Integrated Thermocouple Waveguide Sensor System and Method to Measure Physical Properties of Waveguide Material and Surroundings

Categories for this Invention

Technology: Integrated Thermocouple Waveguide Sensor ;

Industry & Application: NDT, Level & measurement, Automotive, robotics & etc.

Market: The global Industrial Ultrasonic Transducer  market is projected to grow at a CAGR of 11% during the forecast period (2024-31).

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Problem Statement

  • The problem statement discussed in the present invention is how to provide a simplified waveguide based integrated sensor system that measures both temperature & physical properties of waveguide and surrounding materials by coupling both ultrasonic effect and thermo-electric effect without providing separate material and design for creating sensor element at the hot junction.
  • Hence, there is a need to address the issue & said invention provides the solution efficiently.

Technology

  • Present patent describes an integrated sensor system for simultaneously measuring the wave propagation medium for its physical properties, rheology measurement & condition monitoring of surrounding media.
  • System comprises a
  • one or more of compatible wave propagation mediums linked to an ultrasonic energy transducer at one end as cold junction
  • the other ends of the wave propagation mediums are joined together to form a closed end, i.e. a hot junction made by one or more of twisting, bending, bonding, extended welding, spot welding to provide ultrasonic damped junctions, electrical potential and mechanical strength;
  • wave propagation mediums between the open end & closed end is characterized with one or more of reflectors such as bends, notches, coatings, the hot junction and gratings, along the length to obtain ultrasonic reflections;and
  • the ultrasonic-thermoelectric hot junction/ultrasonic sensor’s gage length measures the physical properties of the wave propagation medium and its surrounding medium properties including rheology and strain parameters using ultrasonic waves propagating in the waveguide(s) in addition to temperature

Key Features / Value Proposition

Technical Perspective:

Specimen Testing Process:

  • The integrated sensor is pasted (using spot welds or high temp glues) to the specimen for measuring the longitudinal strain, lateral strain, resultant strains and thermal expansion, while heating the sample.

Transducer:

  • Transducer is selected from PZT, electro-magnetic, thermal means, or combination thereof.

Active Ultrasonic Sensors:

  • A few temperature sensor will function simultaneously and are characterized to self-calibrate with respect to each other, upon failure of hot junction, either one of the leads or both leads will become active ultrasonic sensors.

Other Features:

  • Said surrounding media properties are viscosity, density, temperature, humidity, ice formation, flow, level, etc.
  • Said wave propagation medium properties are elastic moduli, longitudinal, lateral, radial strains, diagonal strains, etc., wherein said wave propagation mediums are selected from two dissimilar metals Chromel & Alumal.
  • The means of ultrasonic energy transduction method is selected from piezo-electric, electromagnetic, magneto strictive, thermo-elastic, opto-mechanical, electro-mechanical.
  • The temperature tolerance for sensing ranges from -100°C to 2000°C.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Krishnan Balasubramanian

Department of Mechanical Engineering

Intellectual Property

  • IITM IDF Ref. 1803;
  • IN Patent No. 394597 (Granted)
  • PCT Application No. PCT/IN2020/050592
  • US Publication No. US 2022-0291171 A1

Technology Readiness Level

TRL- 4

Experimentally validated in Lab

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IDF No 1836 Method for all-optical Clock Recovery from Optical Data in Advanced Modulation Formats

Method for all-optical Clock Recovery from Optical Data in Advanced Modulation Formats

Categories for this Invention

Technology: All-optical clock recovery from optical data (Method)

Category: Photonics

Industry: Optical Fiber

Application: Mid-span 3R regeneration in long-haul optical fiber

Market: The global market size is projected to grow from US$ 9.32 billion in 2022 to US$ 18.76 billion by 2030 with an CAGR of 9.1% from 2022 to 2030.

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Problem Statement

  • All-Optical Clock Recovery in High-Speed Optical Communication Systems
  • Crucial for mid-span 3R regeneration in long-haul optical communication systems.
  • Advanced modulation formats and non-return-to-zero pulse shape increase spectral efficiency.
  • Clock recovery scheme should be adaptable to various modulation formats and scalable to high symbol rates.
  • Stringent requirements on optical signal to noise ratio (OSNR) make mid-span regeneration increasingly relevant.
  • Injection mode-locking of fiber lasers offers flexible solution for all-4 optical clock recovery.
  • Need for improved method for all-clock recovery from optical data in advanced modulated formats.

Technology

  • A method for all-optical clock recovery from optical data in advanced modulation formats, is disclosed herein.
  • Improved All-Optical Clock Recovery Method
  • Involves injection mode-locking of Erbium-doped fiber laser.
  • Involves injection mode-locking of Erbium-doped fiber laser.
  • Involves injection mode-locking of Erbium-doped fiber laser.
  • Based on NPR-SA configuration.
  • The method is not limited by the wavelength of the input signal across the C-band.

Key Features / Value Proposition

Nonlinear Semiconductor Optical Amplifier Use

  • Enhances clock tones in NRZ signals.

Optical Clock Recovery Stage

  • Recovers optical clocks in advanced modulation formats.
  • Utilizes injection mode-locking.

10 Gbaud NRZ Optical Data Recovery”

  • Injection mode-locking of EDF laser.
  • Achieves advanced modulation formats.

Enhancing Clock-Tones through Signal Amplification

  • Resulting in mixed spectral components.
  • Increased carrier-to-sideband power ratio.

Improved resilience

  • The recovered clock signals demonstrate improved resilience to input optical signal to noise ratio (OSNR) conditions.

The root-mean-square RMS Timing

  • (RMS) timing jitter of the recovered clock signals is measured to be ≤ 3ps.

Scaling data rates

  • All-optical clock is recovered in short-haul systems for scaling data rates by bypassing the bandwidth bottleneck due to optical-to-electrical conversion signals.

Questions about this Technology?

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sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Balaji Srinivasan & Prof. Deepa Venkitesh

Department of Electrical Engineering.

Intellectual Property

  • IITM IDF Ref. 1836

  • Patent No: IN 547302

Technology Readiness Level

TRL- 4

Experimentally validated in Lab

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IDF No 1842 Sizing of Remnant Thickness in Pipes and Plates using Cut-off Properties by Widening Excitation Bands of Frequency and Wavelength

Sizing of Remnant Thickness in Pipes and Plates using Cut-off Properties by Widening Excitation Bands of Frequency and Wavelength

Categories for this Invention

Technology: method for detecting a defect in a thickness in pipes and plates using cut-off properties ;

Industry & Application: Oil & Gas, Chemical Industry, NDE/NDT industries;

Market: The global waveguide market is projected to grow at a CAGR of 6.4% during the forecast period (2024-32).

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Problem Statement

  • Wall thinning is a major concern in petrochemical & aerospace industries, & corrosion & erosion are a few of main reasons.
  • Further, major drawbacks are observed in the range of detectable remnant wall thickness.
  • The main problem discussed in said invention, is how to provide a simplified method of non-destructive evaluation and structural health/integrity monitoring for efficiently determining remnant thickness of a structure/component.
  • Hence, said invention provides the solution in efficient manner.

Technology

  • Present patent disclosed a method for detecting a defect, in a thickness of an object, occurring due to corrosion and/or erosion.
  • The cut-off property is used to determine the remnant thickness of structures.
  • The cut-off thickness of a particular mode is the minimum thickness required for that mode to travel through the guided medium.
  • For a particular mode, at one specific frequency, the cut-off thickness is constant. When cut-off frequency increases cut-off thickness decreases.
  • The input excitation is coded to generate a mode in such a way that it contains a range of desired wavelengths & frequencies in it. The cut-off thickness acts as a filter allowing only the frequencies above the cut-off frequency to pass through.
  • The frequencies below the cut-off frequency undergo reflection to the original thickness & one cut-off frequency value is corresponding to one thickness reduction value. Cutoff frequency can be identified by measuring the lower frequency limit of the particular mode transmitted through the inspection area or by measuring the higher frequency limit reflected from the inspection area.

Key Features / Value Proposition

  • Facilitates a simplified method of non-destructive evaluation & structural health and integrity monitoring which precisely evaluates/determines remnant thickness of a structure/component in a single testing.
  • Provide an evaluating method in the areas where the remaining thickness of a structure/component needs to be precisely and quantitatively evaluated.
  • Implements excitation of a particular mode in a wide range of frequencies and uses cut-off property to determine the remnant thickness of structures.

Input Excitation:

  • The input excitation is coded in such a way that it contains a range of desired wavelengths and frequencies in it.
  • The range of wavelengths is achieved by varying the spacing between the excitation sources in comb transduction.
  • The range of frequencies is obtained using methods such as chirp excitation, spike excitation or low cycle Hanning pulse.

Utility:

  • Efficiently applicable in the oil & gas industries, NDE/NDT industries and others.

Questions about this Technology?

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sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Krishnan Balasubramanian

Department of Mechanical Engineering

Intellectual Property

  • IITM IDF Ref. 1842;

  • Patent No. 510555

  • PCT Application No. PCT/IN2020/050351

  • US Publication No. US 2022-0214313-A1

  • UK Patent No. GB2596966

Technology Readiness Level

TRL-5

Technology validated in relevant environment

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IDF No 1866 A Dc-Dc Voltage Converting Apparatus & a Method of Operation Thereof

A Comprehensive Brain-inspired Computational Model for Spatial Navigation

Categories for this Invention

Category- Artificial Intelligence (AI) & Machine Learning / Automobile & Transportation

Industry Classification:

  • NIC (2008)- 26515- Manufacture of radar equipment, GPS devices, search, detection, navigation, aeronautical and nautical equipment; 6201 Computer programming activities
  • NAICS (2022)- 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing; 5415 Computer Systems Design and Related Services
  • Applications: Navigation module for planning and navigation in spatial navigation in autonomous applications including but not limited to, Cars, Drones, Underwater vehicles etc.
  • Market drivers:

    The global navigational systems market size is estimated at USD 44.38 billion in 2024, and is expected to reach USD 70.96 billion by 2029, growing at a CAGR of 9.84% during the period.

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Problem Statement

  • Brain Based Devices ( BBDs) incorporate a simulated brain or nervous system with detailed neuroanatomy and have a physical instantiation, called a morphology or phenotype, which allows active sensing and autonomous movement in the environment.
  • However, existing brain-inspired computational models are unable to provide an effective hierarchical reinforcement learning experience and are inefficient in handling complex real-time spatial navigation in wide range of autonomous applications.
  • There is a need for an improved computational model for spatial applications and an improved comprehensive brain-inspired computational model using hierarchical reinforcement learning for spatial navigation applications.

Technology

  • A Hierarchical Reinforcement Learning (HRL) framework is configured with a prefrontal cortex at a higher level and Basal Ganglia (BG) and Hippocampus (HC) at the lower level wherein the Hierarchical Reinforcement Learning (HRL) framework is implemented to understand the interaction between Basal Ganglia (BG), Cortical Network and the Hippocampus (HC) to provide real time and seamless spatial navigation in wide range of autonomous applications.
  • The Basal Ganglia (BG) operates on at least one sensory data including but not limited to visual and others sensory data to extract local spatial information and prescribe navigational actions towards an immediate goal. The state of the BG is a continuous variable, which represents the the position of the agent in the ambient space
  • The Hippocampus comprises a global spatial map “cognitive map” for planning navigation at a larger scale. The states of the Hippocampus correspond to the landmarks. The Basal Ganglia and Hippocampus (HC) forms a two-level hierarchical navigation module for planning and navigation in autonomous applications
  • The Basal Ganglia (BG) is thought to implement Reinforcement Learning which modulates the relation between stimulus and response using the reward feedback from the environment. The BG passes on the results of learning progressively to the cortex. In the early stages of learning, the BG influences the motor output predominantly, while in the later stages, the motor cortex dominates the output, with diminishing contribution from the BG
  • The Hippocampus (HC) receives inputs from the higher order or association areas of the parietal cortex and sends back projections to the same cortical areas. It also has bidirectional connections with the Prefrontal Cortex. Within the HC there are various hippocampus fields. It is proposed that the functional architecture of the HC is similar to BG

Key Features / Value Proposition

  • Brain-inspired computational model developed can effectively handle novel situations or process large data sets simultaneously. Whereas, logic-based machines face difficulties in programming for situations with broad parameters and changing contexts while algorithms have poor scaling properties and the time required to run them increases exponentially as the number of input variables grows.
  • The invented brain-inspired computational model developed using hierarchical reinforcement learning is capable of handling complex real-time spatial navigation for a wide range of applications. Whereas, conventional computational models are inefficient in handle complex real-time spatial navigation.

Questions about this Technology?

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sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Srinivasa Chakravarthy V

Department of Biotechnology

Intellectual Property

  • IITM IDF Ref.1854
  • IN 506437 Patent Granted

Technology Readiness Level

TRL 3

Experimental Proof of Concept

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IDF No 1946 Systems and methods for suppressing thermo-acoustic instabilities in a Combustor

Systems and methods for suppressing thermo-acoustic instabilities in a Combustor

Categories for this Invention

Technology: Suppressing thermo-acoustic instabilities in a Combustor

Category: Aerospace & Defense Technologies

Industry: Aerospace

Application: Aero engine gas turbines

Market: The global market size was reached USD 3.3 billion in 2023 and is projected to expand at 9.2% CAGR from 2024 to 2032

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Problem Statement

  • Turbulent flows like gas turbine combustors can experience thermoacoustic instability due to large amplitude periodic oscillations.
  • This instability can cause extensive damage to combustor parts, leading to fatigue failure, loss of system performance, and mission failure.
  • Smart control strategies have been developed to mitigate this instability, including acoustic dampers, liners, staged fuel injection, and microjet injections.
  • Passive control involves modifying combustor geometry, altering fuel injection mechanisms, installing baffles, Helmholtz resonators, and applying acoustic liners.
  • Active control strategies supply energy to the thermoacoustic system through dynamic actuators, divided into active closed-loop and open-loop control.

Technology

  • Generating first and second signals for combustor’s turbulent velocity and acoustic pressure fluctuations.
  • Determining phase locked values for signal synchronization.
  • Measuring parameters for recurring turbulent velocity fluctuations at each combustor location.
  • Determining Hurst exponent values based on first signal.
  • Identifying critical region for phase locked values, recurring fluctuations, and Hurst exponent values.
  • Injecting micro-jets to suppress thermo-acoustic instabilities.

Key Features / Value Proposition

Detecting Combustion Instabilities:

  • Determining phase locked values across the combustor to indicate synchronization of turbulent velocity and acoustic pressure.
  • Using Hilbert transform to determine phase difference of first and second signals.
  • The phase locked value corresponds to a correlation between turbulent velocity and acoustic pressure.
  • Measures recurring fluctuations in turbulent velocity including recurrence rate, determinism, entropy, trapping time, and average diagonal length.
  • Measures a Euclidian distance between state points of the phase space trajectory at every combustor location.
  • Hurst exponent values indicate scaling behavior of the first signal corresponding to turbulent velocity.
  • Detects a critical region of the combustor at a region in the combustor.

Advancement:

  • Hurst exponent value is close to zero for periodic signals and greater than 0.5 for noisy and fractal signals.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Sujith RI

Department of Aerospace Engineering

Intellectual Property

  • IITM IDF Ref. 1946

  • Patent No: IN 547498

Technology Readiness Level

TRL- 4

Experimentally validated in Lab

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IDF No 1947 Oxidation of an Arylalkyl or its Derivative to its Corresponding Carbonyl or Carboxylic Acid

Oxidation of an Arylalkyl or its Derivative to its Corresponding Carbonyl or Carboxylic Acid

Categories for this Invention

Technology: Oxidation of an arylalkyl or its derivative to its corresponding carbonyl or carboxylic acid;

Industry: Chemical Plant,  Applications: Pharmaceutical  & chemical synthesis;

Market: The global catalytic oxidation is projected to grow at a CAGR of 6.8% during 2021 to 2029;

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Problem Statement

  • Traditional methods of oxidation invariably involve addition of stoichiometric quantity of oxidants; nevertheless, the co-production of disagreeable toxic by-products is a matter of serious environment concerns.
  • Further the methods for oxidation or dehydrogenation of alkylarenes and its derivatives to respective carbonyls (including carboxylic acids) require costly metals(Rh, Ir, Ru, Pt, Pd, or Os), mixed metal catalysts such as (Pb-Bi)2+xRu2-xO7-y, Pt/Bi-Al2O3, Au-CeO2 or Au/Cu-CeO2 and Cu-Ni, equimolar amount of base & pressurized oxygen in autoclave reactors, as well as different constraint.
  • Hence there is a need to address above issues.

Technology

  • The present invention describes a process for oxidation of an arylalkyl or its derivative to its corresponding carbonyl or carboxylic acid.
  • The process comprises the step of reacting the arylalkyl or its derivative, in water, with aqueous TBHP as an oxidant, in presence of a catalyst of formula (I): wherein, each of R1, R2, and R3, independently, is alkyl, alkenyl, or alkynyl; and m is 0- 20.
  • Further Patent relates to a process for preparing a catalyst of formula(I).
  • Said catalyst of formula (I) as used in the process of the present invention can be recovered from the reaction mixture & recycled or reused.
  • The catalyst may be recycled eight times for successful oxidation reactions without any significant loss of yield. (Fig.1)

Key Features / Value Proposition

Technical Perspective:

  • The claimed process of oxidation of an arylalkyl or its derivative yields corresponding carbonyl or carboxylic acids in excellent yields (up to 98% yield & 100% conversion).

Industrial Perspective:

  • The claimed process does not involve any harmful vigorous oxidant, and/or organic solvent & the process is simple, cost effective, & environment friendly.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Dilip Kumar Chand

Department of Chemistry

Intellectual Property

  • IITM IDF Ref. 1947

  • Patent No: 398304

Technology Readiness Level

TRL- 3

Proof of Concept ready & validated

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IDF No 1951 Tactile Printer

Tactile Printer

Categories for this Invention

Category- Assistive, Test Equipment and Design Manufacturing

Industry Classification:

  • NIC (2008-)- 26204 Manufacture of printers, scanners, including bar code scanners, smart card readers, virtual reality helmets, computer projectors (video beamers)
  • Applications- Printing, Assistive devices for visually impaired,
  • Market drivers:

    The global tactile printing market size was USD 1537.2 million in 2021 and is expected to reach USD 3257.28 million by 2031, exhibiting a CAGR of 7.7% during the forecast period

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Problem Statement

  • Visually impaired people are usually introduced to braille in primary school. However, a braille book can only be used for descriptive communication and not for pictorial communication.
  • Tactile pins only produces a temporary representation of the picture and is not suitable when the pictures and figures have to be presented in a book.
  • Tactile printing techniques like thermal embossing, and UV curing adhesive require a special type of paper for printing. This has a higher cost, and is also immutable for the tactility of previously printed books.
  • There is a need to develop a simplified tactile printer and make it easily portable to enable widespread use

Technology

  • The tactile printer comprises a frame to support the print head, the components of the linear mechanism and a camera. The translator moves the print head, which is an extruder, along an x-y plane to produce a tactile image on a substrate.
  • A controller is configured to control the components and operations of the tactile printer. The tactile line was calibrated for a width of 1.6 mm at 4 steps/second extrusion rate with constant of 0.00175 ml/step fluid flow. By controlling the extruder stepper motors in conjunction with the x−y stage, different complex tactile images were created on a regular A4 paper
  • By placing the image in a paper to be tactiled on the print area, the overhead cameras capture a snapshot and send to the automated image recolonization module. Where the image content on the paper is recognized by comparing to the stored template image
  • A graphical user interface configured to enable the user to identify parts of the image that need to be made tactile

Key Features / Value Proposition

  • With this approach multiple copies of same images can be printed with just few mouse clicks.
  • Assembly of the tactile printer is possible in do-it-yourself (DIY) mode following a given set of instructions. These aspects of the mechanical design are met using a set of nested parts.
  • Quality function deployment matrix shows that the IITM invention is rated far better in case of high importance products requirements of adhesive fluid and fluid extruder when compared to Index Braille- a competitor.
  • This process is semi-automated through the use of intelligent image recognition module and an interpolation module that can identify the edges of a figure and can produce curves respectively.
  • Artificial intelligence and machine learning helps in identifying the parts of the image that should be made tactile for easy interpretation by a user with visual impairment.

Questions about this Technology?

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sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Anil Prabhakar

Department of Electrical Engineering

Intellectual Property

  • IITM IDF Ref. 1951
  • IN 527680 Patent Granted

Technology Readiness Level

TRL 9

Actual System Proven in operational environment

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IDF No 1998 Method and Electronic Device for mitigating Micro-Architectural side-channel attack by Dynamic Resource Allocation

Method and Electronic Device for mitigating Micro-Architectural side-channel attack by Dynamic Resource Allocation

Categories for this Invention

Technology:; Method & Electronic Device for mitigating Micro-Architectural side-channel attack;

Industry/Application: Computer Technology, Hardware, Software, & Algorithm, Servers, Cloud, Storage, Networking Devices, & etc.;

Market: The global high performance computing market is projected to reach at a CAGR of 7.5% during the period (2024-30).

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Problem Statement

  • The problem statement discussed in the present invention is how to prevent the micro-architectural attacks wherein the system incur high overheads and other issues related to system performance issues & etc.
  • Hence, subject invention addresses the issue efficiently.

Technology

  • Present patent describes a method & device that uses hardware performance counters to detect malicious tasks with micro-architectural attack-like behavior. (Refer Fig.1 & Fig.2)
  • Upon detection, the proposed method provides a mechanism to degrade and upgrade malicious program threads based on their behavior.
  • This significantly reduces the impact of the false-positives on benign applications, while detecting malicious threads with high accuracy using features implemented in the hardware.
  • The method for mitigating a micro-architectural side-channel attack by dynamically allocating resources to a plurality of applications by an electronic device, comprising a few steps shown in Fig.2.

Key Features / Value Proposition

  • The proposed method selectively penalizes applications that behave maliciously & the most benign applications are not affected.
  • Said method can be easily adapted for new attacks as long as there are at least one of a plurality of hardware performance counters/ plurality of event counters that can detect them.
  • The electronic device may be a cloud infrastructure provider which provides dynamic computing resources which allows virtual machines (VMs) from multiple customers to share physical resources such as servers, a server, a computer, a laptop, etc.
  • Efficiently brings down the cost of a false penalization.
  • Once a benign thread which is erroneously flagged, is unflagged, the benign thread regains the CPU share and executes without any additional overheads.

Questions about this Technology?

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ipoffice2@iitm.ac.in

Research Lab

Prof. Chester Dominic Rebeiro

Department of Computer Science & Engineering

Intellectual Property

  • IITM IDF Ref. 1998

  • Patent No.495535

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2133 A Method Of Ionization on a 2D-nanostructured Surface

A Method Of Ionization on a 2D-nanostructured Surface

Categories for this Invention

Technology: 2D-nanostructured-MoS2-coated paper surface

Industry: Chemical, Pharmaceutical;

Applications: Standard coated Paper for detecting alcohol in breath;

Market: The global coated paper market is projected to grow, at a CAGR of 4.5% during (2023-2030).

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Problem Statement

  • Generally, mass spectrometry has been used for a century as an analytical technique to study materials & ionization is the primary step in mass spectrometric analysis.
  • There are many ion sources discussed in the prior arts literature like carbon nano tubes, 1D nano structures, thermospray, sonic spray & etc. However, said ion sources is not able to produce ion without external energy with other issues.
  • Hence, there is a need to address the issues & present invention provides the solution in efficient manner.

Technology

  • Present patent claimed a method of ionization on a 2D-nanostructured surface.
  • Said method comprises the steps of:
  • fabricating a 2D-nanostructured-MoS2-coatedpaper surface
  • placing two silver contacts on top of the nanostructured surface & is connected to a picoammeter; &
  • flowing protic solvents containing analytes over the nanostructured surface;
  • The nanostructured surface is kept at an inclined angle for free flowing of the solvents to induce a dipole-dipole interaction leading to the dissociation of solvent molecules.
  • The anions of the dissociated molecules move with the flow resulting in charge separation, & the movement of these negatively charged ions generate an electrokinetic current for ionizing analyte molecules, without any external power source.

Key Features / Value Proposition

Technical Perspective:

  1. Proposed method facilitates 2D-nanostructured-MoS2-coated paper surface which is fabricated as a breath alcohol sensor by flowing acetone over the nanostructured surface & blowing an alcoholic breath to generate an electrokinetic current due to ionized alcohol, wherein current generated over a 1×1 mm2 nanostructured surface is 1.3 A/m2.
  1. The magnitude of the current varies depending on the concentration of alcohol present in the vapor.

Industrial Perspective:

  1. The 2D-nanostructured-MoS2-coated paper surface detects uric acid levels in body fluids when raw urine sample is flown over the nanostructured surface.
  2. Provide a 2D-MoS2-coated paper-based disposable sensor for detecting alcohol in breath.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Pradeep T

Department of Chemistry

Intellectual Property

  • IITM IDF Ref. 2133

  • Patent No: 383701

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2278 A Structure for Heat Exchanger and Ventilation Applications

A Structure for Heat Exchanger and Ventilation Applications

Categories for this Invention

Technology: gyroid tube structure ;

Industry: Automotive, Clean Energy, Applications: Waste management; ;

Market: The global heat exchangers market size is projected $32.65B at a CAGR of 6.53% during period of 2023-2030.

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Problem Statement

  • Generally, a heat exchanger is a device that transfer heat from one medium to another (i.e. fluid to fluid), and applicable in space heating, refrigeration/air conditioning, power stations, chemical plants, petrochemical plants/petroleum refineries, natural-gas processing, and sewage treatment, etc.
  • Further, the heat exchangers are designed in such a manner for better performance but suffers due to induce turbulence other associated issues. Moreover, optimized heat exchangers are complex structure and costlier to manufacture including other factors.
  • Prior art systems fail in high thermal loads within the limited space including other issues.
  • Hence, it is a need to mitigate above challenges & provide efficient solution.

Technology

  • Present invention describes a gyroid tube structure for fluid-to-fluid heat exchange applications.
  • Said structure consists of interconnected unit cells arranged in three dimensions.
  • Each unit cell includes at least one first channel and at least second channel, separated by a partition wall structure.
  • The partition wall structure is formed based on a periodic curved surface, specifically a periodic minimal curved surface.
  • Multiple instances of the structure can be stacked to create a heat exchanger and ventilation device.
  • First & second channels are perpendicular to each other, and the periodic minimal curved surface is a triply periodic minimal curved surface.
  • Said Design allows for efficient heat exchange between fluids flowing through the channels.

Key Features / Value Proposition

Technical Perspective:

  • Facilitates a Gyroid tube structure, specifically a periodic minimal curved surface, allowing for efficient fluid-to-fluid heat exchange.
  • A triply periodic minimal curved surface (TPMS) is a surface created with the least amount of area while having a fixe boundary curve.
  • The structure is in the form of a cuboid and/or cylindrical shape & is repeated and stacked one after another to form a heat exchangers & ventilation device.

Industrial Perspective:

  • Provide a structure for a heat exchanger & ventilation applications.
  • Facilitates higher heat transfer surface area.
  • Facilitates compact structure including lightweight.
  • Provides higher turbulence production.

User Perspective:

  1. Ensures more reliable & user-friendly apparatus for fluid –to-fluid heat transfer.
  2. Induce internal mixing within each fluid stream so that to promote heat transfer.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Saravana Kumar G

Department of Engineering Design

Prof. Arul Prakash K

Department of Applied Mechanics

Prof. Sreenivas Jayanti

Department of Chemical Engineering

Prof. Vengadesan S

Department of Applied Mechanics

Intellectual Property

  • IITM IDF Ref.:2278 

  • Patent Application No. 202141058706

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2405 A Method for Environmental Arsenic Detection and Public Awareness using Human Cells

A Method for Environmental Arsenic Detection and Public Awareness using Human Cells

Categories for this Invention

Technology: a method for Arsenic detection;

Industry & Application: Healthcare, Medical kit for detection of Arsenic in water;

Market: The global water quality monitoring market is projected to grow at a CAGR of 5.51% during the forecast period (2024-30).

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Problem Statement

  • Despite the severe health implications of Arsenic (As), an overall lack of social awareness among the As-affected population is observed.
  • The problem statement discussed in the subject invention is how to provide a cellular platform (CP) sensor, which will help to create awareness about the risks of chronic As exposure effectively. This may be implemented typically in a school or a village health center in the affected region, which could store the CP. Hence, Present invention is effective to provide the solution efficiently.

Technology

Present patent describes a method & kit for environmental arsenic detection.

Method comprises the steps of:

  • a cellular platform consisting of eukaryotic cells cultured on an electrospun nanofibrous scaffold made of biocompatible polymer;
  • treating the cellular platform with arsenic extract;
  • staining the treated cellular platform with fluorimetric probe;
  • The cellular response to arsenic is measured in terms of the fluorescence response at the excitation/emission wavelengths of a fluorometric probe sensitive to reactive oxygen species (ROS) generated by arsenic.

Key Features / Value Proposition

Technical Perspective:

  • Facilitates a unique, sensitive, quantitative, sustainable, & environment-friendly method for the detection of arsenic in environmental samples using cellular platform-based arsenic sensor made of human skin-cell.
  • The eukaryotic cells are selected from a human cell line, wherein said human cell line include keratinocytes or HaCaT cell line from adult human skin.
  • The arsenic detection includes the trivalent and pentavalent states of arsenic as well as their mixtures.
  • The biocompatible polymer is polycaprolactone (PCL).
  • The fluorimetric probe is 2′,7′-dichlorofluorescin diacetate (DCFDA).
  • Arsenic detection output is quantitative or qualitative.
    quantitative or qualitative.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Pradeep T

Department of Chemistry

Intellectual Property

  • IITM IDF Ref. 2405

  • IN Patent No. 484281

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2446 Metallic Functionally Graded Materials and Manufacturing Methods thereof

Metallic Functionally Graded Materials and Manufacturing Methods thereof

Categories for this Invention

Technology: Metallic functionally graded materials (FGM) & Manufacturing method;

Industry & Application: Defense, Aerospace, rocket heat shields, Marine industry, heat-engine components, Missile Industries, Naval Security/Navy & etc.

Market: The global ballistic protection market is projected to grow at a CAGR of 5.41% during the forecast period (2024-29).

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Problem Statement

  • The problem statement discussed in the present invention is how to produce a simplified cost-effective functionally Graded Materials without limitations like expensive manufacturing method & other issues like difficulty in determining the component life, & others.
  • Hence, there is a need to address the issue & said invention provides the solution efficiently.

Technology

  • Present patent describes a high velocity ballistic device for producing bulk functionally graded materials (FGMs) by impacting projectiles onto a stationery target, the device comprises of
  • three tubes
  • a high-pressure tube (HPT), a   pump tube (PT) and a launch   tube (LT);’
  • a piston;
  • two diaphragms separating the junctions between the three tubes (HPT, PT, and LT);and
  • a means to pressurize the high-pressure tube. (Refer Fig.2)
  • The velocity of the projectile is controlled by the pressure of air in the high-pressure tube & the diaphragm material & their total thickness.

Operation

  • During the pressure inside the high-pressure tube reaches a critical value, the first diaphragm between HPT & PT  gets ruptured, pushing the piston forward which develops a very high pressure inside the PT that causes the second diaphragm to rupture, the projectile kept in the LT, just after the second diaphragm, gets accelerated & exits the launch tube at a high velocity to impact the stationary placed at a distance.

Key Features / Value Proposition

  • Disclose a simple low-cost method to produce bulk metallic FGMs using Ballistic Impact.
  • The method produces bulk FGMs of varying size & shape of the FGMs depending on the capacity of the ballistic setup
  • The projectiles, having hemispherical nose of desired radius, length, & suitable weight, are made of metal alloys & others e.g. Aluminum alloys (Al5052). (Refer Fig. 3)
  • The diaphragm materials can be of any material & further controlling the velocity of the projectile is achieved by changing the thickness of the diaphragms. (Refer Fig. 4)
  • The stationary target may be any strong & solid plate, e.g. an ultra-high molecular-weight polyethylene (UHMWPE) plate.
  • Applicable in Security agency, Defense/Military, Aerospace and Missile industries & etc.

Experimental Results:

  • A study of the grain refinement & hardness variation was carried out for all the tested projectiles prepared from Al5052 including test results of different specimen of projectiles. (Refer Fig. 1 & Table 1)

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Balakrishna C Rao

Department of Engineering Design

Prof. Ramkumar P

Department of Mechanical Engineering

Prof. Rajesh G

Prof. Murthy H S N

Department of Aerospace Engineering

Intellectual Property

  • IITM IDF Ref. 2446

  • Patent Application No. 202241071549

  • PCT Application No. PCT/IN2023/051170

Technology Readiness Level

TRL-4

Proof of Concept ready, tested and validated in Laboratory

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IDF No 2460 Hyperloop Transportation System

Hyperloop Transportation System

Categories for this Invention

Technology: Hyperloop Transportation System

Industry/Application: Hyperloop Transportation System, Railways, Cargo, etc.;

Market: The global Hyperloop technology market is projected to reach at a CAGR of 32.58% during the period (2024-32).

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Problem Statement

  • The problem statement discussed in the present invention is how to develop a topology where amplification and amplitude detection can be combined in a single block. .
  • Hence, subject invention addresses the issue efficiently.

Technology

  • Present patent related to a hyperloop transportation system for highspeed transportation of people and/or objects.
  • Said system comprises two or more tubes for movement of hyperloop pods within.
  • The two or more tubes may be connected with each other through a plurality of passageways by allowing flow of air streams through them for distribution of air flow pressure among the two or more tubes.
  • The passageways may be positioned at regular interval between the first tube & the second tube.
  • The passageways may comprise flow control valves installed on the passageways for controlling the flow of the air through the passageways.
  • The Hyperloop transportation system may further comprise an auxiliary tube for allowing movement of air through the plurality of passageways.
  • The hyperloop transportation system is also comprise a flow control valve installed on one or more of the plurality of passageways for relieving air pressure & minimizing interference between high-pressure air streams flowing through the two or more tubes.
  • The flow control valve may be actuated with a pre-programmed control logic.

Key Features / Value Proposition

  • The plurality of passageways may increase an effective cross-sectional area for flow of the high-pressure air stream in any of the two or more tubes
  • The plurality of passageways may be positioned at an
  • inclination angle from the two or more tubes, (range from 5 degrees to 90 degrees)
  • The plurality of passageways may be in one or more of circular shape, rectangular shape, square shape, oval shape, elliptical shape, & non-circular shape.
  • The passageways are configured with mild steel, stainless steel, medium carbon steel, alloy steel and/or composite material including fibre-reinforced plastics, concrete, Aluminium(Al) & alloy of Al.
  • An effective blockage ratio of the Hyperloop transportation system is reduced without increasing the hoop stresses on the multiple tubes.
  • Offers benefit by reducing the capital cost & reduction of operational cost by decreasing energy requirements of the hyperloop transportation system.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Charavarthy S.R

Prof. Muruganandam T M

Department of Aerospace Engineering

Intellectual Property

  • IITM IDF Ref. 2460
  • Patent Application No. 202241071896
  • PCT Application No. PCT/IN2023/051173

Technology Readiness Level

TRL-6

Technology demonstration in relevant  environment

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IDF No 2529 A Signal Strength Indicator Circuit

A Signal Strength Indicator Circuit

Categories for this Invention

Technology: Signal Strength Indicator Circuit;

Industry/Application: Signal Strength detectors, signal-strength detector; CMOS inverter;

Market: The global market is projected to reach at a CAGR of 32.58% during the period (2024-32).

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Problem Statement

  • The problem statement discussed in the present invention is how to develop a topology where amplification and amplitude detection can be combined in a single block. .
  • Hence, subject invention addresses the issue efficiently.

Technology

  • Present patent discussed about a pseudo-differential amplifier chain.
  • Said pseudo-differential amplifier chain comprises a complementary metal oxide semiconductor (CMOS) inverter pair as amplifier, configured to receive a differential signal.
  • Further, it includes a voltage regulator unit connected to the pseudo-differential amplifier chain to provide a supply voltage Vs for biasing the pseudo-differential amplifier at a reference Direct current (DC) operating point.
  • Moreover, the pseudo-differential amplifier chain includes a current mirror circuit connected with the pseudo-differential amplifier chain to receive a supply current from the pseudo-differential amplifier chain & generate a mirrored output current.
  • The mirrored output current is used to determine strength of the differential signal.

Key Features / Value Proposition

  • Integrates amplification & amplitude detection in a single unit. CMOS inverters can be more easily designed at low supply voltages than other types of amplifiers.
  • Develops a signal-strength detector utilising low power.
  • The signal-strength detector circuit occupies 0.08 mm2, consumes 1.2 mW from 1.5V and
  • the noise floor is 0.2mV rms. (Refer Table1)
  • Facilitates a compact signal-strength detector.
  • More amenable to low supply voltage operation.
  • A 65nm prototype of the
  • signal-strength detector circuit has a 70.9dB dynamic range with ±1dB error.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Nagendra Krishnapura

Department of Electrical Engineering

Intellectual Property

  • IITM IDF Ref. 2529

  • Patent No. 545473  

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2591 Step Climbing Apparatus

Step Climbing Apparatus

Categories for this Invention

Category – Robotics & Automation

Applications – Construction Sites, Rescue Operations

Industry – Agriculture Technology (AgTech), Construction and Infrastructure

Market –  Global automatic stair climbing wheelchair market size is estimated to grow by USD 818 million, at a CAGR of 13.1% between 2023 and 2028.

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Problem Statement

  • Conventional equipment cannot navigate the stepped and sloped terraces, leading to reduced farming productivity and manual labor.
  • Current climbing technologies are complex, bulky, expensive, and lack stability and adaptability for steep slopes.
  • Autonomous agricultural robots are effective only on flat terrains and do not address the unique challenges of step farming.

Technology

  • Advanced Climbing Mechanism: The step climbing apparatus features a gear train, telescopic slider unit, and a four-bar linkage system to enable efficient traversal of steps and steep slopes up to 90 degrees, enhancing mobility and stability on uneven terrains.
  • Active Control for Stability: The apparatus includes an active control mechanism and vibration-dampening features to prevent tilting and damage to the payload, ensuring stable operation while climbing and navigating irregular surfaces.
  • Versatile Applications: Designed for terraced agricultural fields, the apparatus can also be utilized in construction, industrial processes, and rescue operations, offering robust performance in challenging environments.

Key Features / Value Proposition

1. Efficient Terrain Navigation:

  • Advanced gear train and telescopic slider system enable smooth traversal of steps and steep slopes.

2. High Stability and Control:

  • Integrated active control mechanism and vibration-dampening features prevent tilting and damage, ensuring reliable performance on uneven terrains.

3. Robust Climbing Capabilities:

  • Capable of climbing steep slopes up to 90 degrees with precision, addressing challenges in steep agricultural and industrial environments.

4. Enhanced Mobility:

  • Four-bar linkage system and curved blade wheels optimize traction and maneuverability, facilitating efficient operation on irregular surfaces.

5. Versatile Application:

  • Adaptable design for use in agriculture, construction, and rescue operations, providing a broad range of applications in various industries.

6. Durable and Reliable:

  • Built with robust components and self-locking gears, ensuring long-term durability and consistent performance in demanding conditions.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Rengaswamy Jayaganthan

Department of Engineering Design

Intellectual Property

  • IITM IDF Ref. 2591
  • IN 542650 – Patent Granted

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2453 Ultrasonic Milling Machine

Ultrasonic Milling Machine

Categories for this Invention

Category- Ultrasonic Machining, Advance Material & Manufacturing

Applications– Ceramic Component Manufacturing, Medical Device

Industry- Precision Engineering, Medical Devices

Market – Ultrasonic Machining Services Market is projected to reach USD 130.56 Billion by 2031, growing at a CAGR of 8.54% during 2024-2031.

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Problem Statement

  • Conventional ultrasonic milling machine edges are expensive and time-consuming to manufacture, especially for small and thin-walled parts.
  • Current machining edges require skilled operation and fragile tools to achieve sharp geometries.
  • There is a need for a modular machining edge design to reduce manufacturing costs and time.

Technology

  • The invention introduces a modular machining edge for ultrasonic milling machines, composed of at least two or three separate elements, making it easier to manufacture, assemble, and replace parts.
  • The separate elements (threading, adapter, and profile) are made from various materials like aluminum, steel, and titanium, allowing for tailored properties depending on the cutting application.
  • By separating the machining edge into smaller, easily producible components, the invention reduces manufacturing complexity, cost, and time compared to traditional single-piece machining edges.

Key Features / Value Proposition

1. Modular Design Efficiency:

  • Reduces production complexity and enables easy replacement of worn components, enhancing operational efficiency.

2. Material Customization

  • Allows for tailored machining edge materials (aluminum, steel, titanium) to suit specific cutting applications, improving performance and durability.

3. Cost Reduction

  • The integration of multiple smaller elements lowers manufacturing costs and simplifies the production process.

4. Enhanced Precision

  • Use of advanced machining techniques like EDM, laser cutting, and CNC ensures high precision in the production of complex profiles.

5. Versatile Application

  • Suitable for milling a wide range of brittle and hard-to-cut materials, including ceramics, with adaptability to various shapes and profiles.

6. Ease of Assembly

  • Modular components can be easily assembled using adhesives, soldering, or welding, reducing downtime and maintenance efforts.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Ravi Kumar N V

Department of Metallurgical and Materials Engineering

Intellectual Property

  • IITM IDF Ref. 2453
  • IN 509345 – Patent Granted

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2301 System and Method for Continuous-time Pipeline ADC With Reduced In-Band Transfer-function Droop

System and Method for Continuous-time Pipeline ADC With Reduced In-Band Transfer-function Droop

Categories for this Invention

Category- Analog-to-Digital Conversion (ADC) Systems

Applications – Communications, Industrial Automation

Industry – Telecommunications, Healthcare, Automotive Electronics

Market – The analog to digital converter market is anticipated to flourish at an average CAGR of 5.7% between 2023 and 2033 and is likely to reach a value of US$ 3.51 billion in 2023.

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Problem Statement

  • The use of identical stages in a multi-stage Continuous-Time Pipelined (CTP) Analog-to-Digital Converter (ADC) leads to a notable in-band droop, causing a detrimental impact on both the Signal-to-Quantization Noise Ratio (SQNR) and overall conversion performance.
  • While some existing multi-stage CTP ADCs utilize impedance scaling and second-order Butterworth stages to alleviate droop, they are limited in fully addressing the cumulative droop throughout the entire pipeline, especially when multiple stages are cascaded together.
  • Moreover, the droop present in the filter transfer function within the signal band can result in a decrease in SQNR, especially affecting input frequency components near the band-edge frequency. This can greatly impede the converter’s reliability when it comes to various input variations.

Technology

  • The present invention discloses a system and method for a continuous-time pipeline (CTP) analog-to-digital converter (ADC) which comprises the benefits of pipelining with continuous-time operation.
  • The system incorporates at least one pipeline stage configured with non-identical amplifier filters, achieving a unique transfer function for each stage to reduce in-band transfer function droop.
  • By utilizing non-identical residue amplifying filters in each pipeline stage, the system effectively reduces droop in the signal band, enhancing overall performance.
  • The system features a computing application capable of determining the number of stages and filters, analyzing the non-identical transfer function, and determining transfer functions for non-identical pipeline stages.
  • Unlike conventional approaches, the system is designed to realize an overall transfer function rather than selecting transfer functions for individual pipeline stages.
  • The method provides flexibility by allowing the use of non-identical residue-amplifying filters such as Butterworth and Chebyshev filters, catering to user or application-specific requirements. The overall Butterworth design achieves higher Signal to Quantization Noise Ratio with lower droop at the band edge.

Key Features / Value Proposition

Market Advantage:

  • Enhanced Performance: Non-identical transfer functions in each stage reduce in-band droop, improving Signal-to-Quantization Noise Ratio (SQNR) and overall ADC performance.

Key Features:

  • Continuous-Time Operation: Leverages the benefits of continuous-time operation in a pipeline ADC, combining efficiency with high-speed conversion.
  • Tailored Transfer Functions: Appropriate design of non-identical transfer functions per stage optimizes the equivalent anti-alias filter, maintaining high-frequency attenuation while minimizing in-band droop.

Competitive Edge:

  • Adaptive Butterworth Function: Realizes an overall Butterworth transfer function, offering a competitive advantage over systems with individually chosen Butterworth transfer functions for each stage.

Industry Innovation:

  • Integrated System Design: The CTP ADC system integrates non-identical filters and backend ADC seamlessly, presenting an innovative solution for improved performance without sacrificing design simplicity.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Shanthi Pavan

Department of Electrical Engineering

Intellectual Property

  • IITM IDF Ref. 2301
  • IN 441016 – Patent Granted

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 2214 Polarization-independent Frequency Selective Surfaces for Atmospheric Remote Sensing

Polarization-independent Frequency Selective Surfaces for Atmospheric Remote Sensing

Categories for this Invention

Category – Atmospheric Remote Sensing

Applications- Radiometers, Spatial filters, phase and control metasurfaces, Satellite based weather forecasting and monitoring

Industry- Remote Sensing, Radar Systems, Satellite Communication

Market The global remote sensing technology market size and is expected to hit around USD 55.36 billion by 2032, representing a CAGR of 11.79% from 2023 – 2032.

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Problem Statement

  • Existing FSS designs are sensitive to the polarization and angle of incidence of EM waves, limiting their effectiveness in diverse remote sensing applications.
  • Current FSS configurations, including waveguide and substrate-backed types, face challenges with insertion and reflection losses, affecting performance in ultra-low-power applications.
  • There is a need for FSS structures that offer wide operational bandwidth and effective spatial filtering for modern radiometers, addressing the limitations of existing narrowband or multi-band designs.

Technology

  • The technology introduces a miniaturized Frequency Selective Surface (FSS) unit cell with a metal ring and dipole structure, designed to reflect specific millimeter wave frequencies while transmitting others with minimal loss.
  • The FSS can de-multiplex multiple frequency bands (e.g., 50-60 GHz, 170-195 GHz) for advanced remote sensing applications, with tailored reflection and transmission properties to handle different wavebands effectively.
  • The unit cell features a dielectric substrate and metal layer with precise dimensions and materials (e.g., gold, copper), optimizing performance for low-loss operation and wideband frequency separation in millimeter-wave remote sensing.

Key Features / Value Proposition

1. Tri-band Frequency Filtering:

  • Provides selective filtering for three distinct frequency bands (50-60 GHz, 87-91 GHz, and 170-195 GHz) with high precision.

2. High Insertion Loss:

  • Achieves significant attenuation (≥10 dB) in the reflected bands, enhancing signal clarity and reducing interference.

3. Low Insertion Loss in Pass Band:

  • Ensures minimal signal loss (≤0.9 dB) in the pass band, optimizing transmission efficiency.

4. Compact and Miniaturized Design:

  • Utilizes miniaturized unit cells (λ0/7 × λ0/7) for space-efficient integration into various systems.

5. Polarization-Insensitive Performance:

  • Maintains consistent performance across different polarizations and angles of incidence, ensuring reliable operation in diverse conditions.

6. Enhanced Remote Sensing Capability:

  • Suitable for atmospheric remote sensing applications, including temperature profiling and humidity sensing, with high mechanical strength and low fabrication complexity.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Kavitha Arunachalam

Department of Engineering Design

Prof. C.V. Krishnamurthy

Department Of Physics

Intellectual Property

  • IITM IDF Ref. 2214
  • IN 531494 – Patent Granted

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 1922 Varying Carrier based Pulse Width Modulation Technique for Multisource Inverter System

Varying Carrier based Pulse Width Modulation Technique for Multisource Inverter System

Categories for this Invention

Category – Photovoltaic Systems and Power Electronics, Electronics & Circuits

Applications – Solar Power Systems, Microgrids, Electric Vehicle Charging Stations

Industry – Renewable Energy, Automotive and Transportation

Market- The Maximum Power Point Tracking Charge Controllers Market is expected to grow at a CAGR of 10% from 2024 to 2031.

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Problem Statement

  • Two-stage power converter systems, involving both DC-DC converters and inverters, are complex and expensive compared to simpler single-stage systems.
  • Existing maximum power point tracking (MPPT) techniques, like perturb and observe (P&O), suffer from inefficiencies due to oscillations around the maximum power point (MPP).
  • Parallel connections of photovoltaic panels increase conduction losses and are restricted by differing voltage ratings, while series connections necessitate multiple converters, raising component count and cost.

Technology

  • The invention provides a method for maximum power point tracking (MPPT) in photovoltaic-fed single-stage multisource inverters by determining and comparing reference voltages for multiple photovoltaic panels to optimize power extraction and efficiency.
  • It introduces control parameters (first and second) that measure differences between actual and reference voltages, using these to generate pulse width modulated gate signals for semiconductor switches, thereby optimizing power delivery to the load or grid.
  • The system employs a varying carrier-based pulse width modulation (PWM) technique to manage the connection and current supply duration of each photovoltaic panel, enhancing the inverter’s overall performance and power extraction capabilities.

Key Features / Value Proposition

1. Enhanced Power Efficiency:

  • Maximizes power extraction from photovoltaic panels using advanced MPPT techniques, ensuring optimal energy conversion.

2. Cost Reduction:

  • Simplifies system architecture with single-stage multisource inverters, reducing component count and overall system costs.

3. Innovative Control Parameters:

  • Utilizes first and second control parameters to precisely regulate voltage levels and optimize power delivery.

4. Dynamic PWM Modulation:

  • Employs varying carrier-based pulse width modulation (PWM) to efficiently manage current supply duration for each panel.

5. Improved Performance Stability:

  • Minimizes oscillations around the maximum power point (MPP) with sophisticated voltage comparison methods.

6. Scalability and Flexibility:

  • Supports multiple photovoltaic panels with series connections, offering scalable and flexible solutions for high-power applications.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Lakshminarasamma

Prof. Mahesh Kumar

Department of Electrical Engineering

Intellectual Property

  • IITM IDF Ref. 1922
  • IN 466107 – Patent Granted

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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IDF No 1825 System and Method for Recovering Energy or Minerals from a Reservoir

System and Method for Recovering Energy or Minerals from a Reservoir

Categories for this Invention

Category – Advanced Well Drilling Systems Applications – Extraction & Mining, Chemical industries, Petroleum/ oil and Gas industry

Industry – Energy or mineral recovery

Market – Chemical Enhanced Oil Recovery (EOR) Market is forecast to surpass US$936.2 million in 2023, with strong revenue growth predicted through to 2033.

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Problem Statement

  • As global energy demands rise, there is a pressing need for efficient extraction methods for oil, gas, geothermal energy, and minerals from below the earth’s surface.
  • However, current methods have their drawbacks, as they often result in higher water and gas content in extracted oil, leading to decreased overall oil production and presenting environmental challenges.
  • One major issue is the inefficiency of traditional oil extraction systems, which are not only expensive and time-consuming but also in need of improvement to increase productivity and reduce costs.
  • Another crucial concern is the impact on the environment, as these outdated methods contribute to harmful effects such as excessive water and steam usage per barrel of oil.
  • Thus, there is a pivotal need for the development of sustainable hydrocarbon recovery technologies to address these issues.

Technology

  • Staggered Well Design: Introduces a system with injectors or producers having vertical and angled portions, extending into a pay zone, optimizing resource extraction.
  • Enhanced Extraction: Angled portions strategically configured to avoid overlap, boosting the extraction of hydrocarbons, energy, or minerals with variable azimuth and elevation angles.
  • Configuration Flexibility: Offers flexibility with adjustable angles (𝜑 and θ) between injectors or producers, accommodating diverse geological conditions for optimal performance.
  • Drilling Methodology: Involves using a drilling apparatus to create the staggered well structure, including vertical portions around the pay zone periphery and angled portions towards the central area.
  • Depth and Length Variability: System allows for varied depth (5 to 30000 meters) and length (5 to 50000 meters) of angled portions, along with diameter options (25 mm to 1000 mm) for adaptability to different geological contexts.

Key Features / Value Proposition

Enhanced Hydrocarbon Recovery:

  • Staggered well configuration with vertical and angled portions optimizes extraction efficiency, offering improved hydrocarbon recovery from both central and peripheral areas of the pay zone.

Precision Drilling Methodology:

  • Utilizes a methodical approach, incorporating varied azimuth angles, elevation angles, and non-overlapping configurations to precisely target and extract hydrocarbons, energy, or minerals from specific zones within the reservoir.

Versatile Well Configuration:

  • Adaptable system design allows for customization, featuring injectors or producers with angled portions strategically positioned at different levels, diameters, and lengths, providing versatility in addressing diverse geological conditions.

Optimal Resource Extraction:

  • Methodology emphasizes optimal resource extraction through the utilization of perforated piping along angled portions, ensuring efficient injection or production of hydrocarbons, energy, or minerals from the production wells.

Comprehensive Drilling Method:

  • Offers a comprehensive drilling method involving a combination of vertical portions and a central shaft branching towards the periphery, enabling a thorough exploration and extraction process for hydrocarbons, energy, or minerals from the entire pay zone.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Jitendra Sangwai

Department of Chemical Engineering

Intellectual Property

  • IITM IDF Ref. 1825
  • IN 435587 – Patent Granted

Technology Readiness Level

TRL – 4

Technology validated in lab scale.

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