Systems and methods for the inspection of structures having unknown properties
US8532940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2010 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jun 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inspection method includes driving a plurality of spaced apart transmitting transducer elements with a respective time delay and a respective frequency such that each of the transmitting transducer elements transmits an ultrasonic guided wave through a transmission medium defined by a material having at least one unknown physical property. The ultrasonic guided waves are received at a receiving transducer element disposed at a distance from the transmitting transducer elements. A respective time delay and a respective frequency for each of the transmitting transducer elements is determined that provides a maximum amplitude in a signal received at the receiving transducer element. The plurality of transmitting transducer elements are activated in accordance with the determined time delays and frequencies to transmit inspection signals through the transmission medium. A location of a defect in the material is determined based on velocities of the inspection signals received at the receiving transducer element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.