A new measuring set for measurements of the speed of sound in liquids under high pressures (up to 300 MPa), designed and constructed in our laboratory, is described. It operates on the principle of the pulse-echo-overlap method. A single transmitting–receiving piezoelectric ceramic transducer operating at 4 MHz and an acoustic reflector were applied. Details concerning the designing and operation of all the elements of the acoustic path, assuring high accuracy of the speed measurements, are given.
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Żak et al. (2000) studied this question.
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