Method for performing ultrasonic testing
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United States of America Patent
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May 7, 2013
Grant Date -
Apr 21, 2011
app pub date -
Oct 16, 2009
filing date -
Oct 16, 2009
priority date (Note) -
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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.
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