Simple Method for Measuring the Sound Velocity of a High Absorption Liquid
- 1 July 1985
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 24 (7A) , L525
- https://doi.org/10.1143/jjap.24.l525
Abstract
A new method for measuring the phase velocity at MHz frequencies is presented. Two quartz transducers are separately placed; the time difference between the ac-voltage pulse (tone burst) applied to the transmitting transducer and the out-put-voltage pulse of the receiving transducer is measured with an accuracy of several percent of the period of resonant vibration of the transducers. A special technique is used in order to find the cycle-for-cycle matching between the two pulses. The measurement is easily performed even with a liquid of 40 dB absorption between the two transducers.Keywords
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