Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

System and Method for Ultrasonic Inspection of Curved Surfaces

Categories for this Invention

Non-Destructive Testing Methods and Equipment (NDT/NDE) | Other Technologies

Industry: Manufacturing & Fabrication Industry, Healthcare, Aerospace, Oil and Gas Industry, Construction and Infrastructure Industry

Applications: Ultrasonic Inspection Technology, Non-Destructive Testing, Biomedical Ultrasound Imaging, Industrial Inspection Market

Market: The global ultrasonic testing market size is projected to grow from $ 1,954.4 million in 2020 and to reach $3,671.9 million by 2027, growing at 9.43% CAGR from 2020 to 2027.

Image Gallery

Problem Statement

  • Pulsed Array Ultrasonic Transducers (PAUT), an existing ultrasonic testing method rely on multiple transducers and intricate electronic systems, resulting in complexity, potential limitations in inspecting materials with curved portions, higher costs and may limit its applications in diverse fields.
  • The existing ultrasonic testing methods, including advancements like curved array probes and conformable array transducers, often come with inherent complexities & costs.
  • Hence, there is a growing demand for a more simpler, streamlined and cost-efficient solution for ultrasonic inspection, especially for hollow structures to overcome the limitations of current technology.


  • The present patent invention aims to disclose a System and Method to streamline and cost-effectively improve ultrasonic inspection for curved surfaces, ensuring high-quality evaluations, especially in hollow structures and materials with curved portions.

Key Features / Value Proposition

User perspective:

  • Simplicity and Ease of Use: User-friendly design and operation for easy implementation and reduced training requirements.
  • High-Quality Inspections: Ensures accurate and reliable inspection results for curved surfaces without compromising quality.

Industrial perspective:

  • Cost-Effective Solution: Reduces overall costs associated with ultrasonic inspection by eliminating need for multiple transducers and complex electronics.
  • Versatility: Applicable across various industries, offering a versatile solution for inspecting curved surfaces in different materials and structures.

Technology perspective:

  • Single Transducer Efficiency: Utilizes a single transducer for generating curved wave fronts, simplifying the technology and reducing complexity.
  • Customization with GRIN PCs: Incorporates Gradient Refractive Index Phononic Crystals (GRIN PCs) for tailored wave front curvature, enhancing customization capabilities.

Questions about this Technology?

Contact For Licensing

Research Lab

Prof. Prabhu Rajagopal

Department of Mechanical Engineering 

Intellectual Property

  • IITM IDF No.: 1729

  •  IP No.: 402425 (Granted)

Technology Readiness Level


Proof of Concept

error: Content is protected !!