Method for performing ultrasonic testing
US8434936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Dec 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for performing ultrasonic testing comprising, in one embodiment, the steps of firing an ultrasonic transducer to generate an ultrasonic pulse that passes through a delay line, measuring a delay echo time of flight, and determining the temperature of the delay line using the delay echo time of flight, thereby eliminating the need for additional temperature measuring devices. Other embodiments further comprise the step of using the temperature of the delay line to determine the temperature of a test object, and using the temperature of the test object to determine a thickness of the test object that is compensated for thermal expansion and temperature dependent ultrasonic velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.