Abstract
Different methods of determining vibration frequencies used in ultrasonic testing are compared. It is shown that the values obtained can be significantly different; therefore, it is of importance to establish a uniform approach to the measurements which takes maximally into account the testing conditions.
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Danilov, V.N., Ermolov, I.N. & Shcherbakov, A.A. Determination of the Vibration Frequency in Nondestructive Testing. Russian Journal of Nondestructive Testing 39, 171–178 (2003). https://doi.org/10.1023/B:RUNT.0000009069.19618.0b
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DOI: https://doi.org/10.1023/B:RUNT.0000009069.19618.0b