Non-contact material inspection

US10871468B2 · kind B2 · utility

Assignee

• Tata Consultancy Services Limited · IN

Inventors

• Rajat Das · San Mateo, US
• Arijit Sinharay · Sherghati, IN
• Smriti Rani · Sherghati, IN
• Andrew Gigie · Sherghati, IN
• Tapas Chakravarty · Sherghati, IN

Key dates

• Filing date: Mar 5, 2019
• Grant date: Dec 22, 2020
• Expiry date: May 8, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S13/88
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

This disclosure relates to non-contact inspection of material for identifying and estimate composition of a material under inspection. Traditionally, material inspection is an invasive process involving contact based approaches. A radar-based approach requires placement of the radar at a specific location, which is a challenge since amplitude of the reflected signal, depends on the distance from the material under inspection. The present disclosure addresses this technical problem by providing a Continuous Wave radar-based approach that is based on absolute slope at extrema points on the reflected signal from the material under inspection.