METHOD OF MEASURING ULTRASONIC RADIATION POWER Russian patent published in 2017 - IPC H04R29/00 

FIELD: physics.

SUBSTANCE: method comprises installing, on the surface of an ultrasonic transducer, two identical test samples, on each of which a heat sensitive element is attached. An exciting electric signal is transmitted to the ultrasonic transducer and signals from the heat sensitive elements are detected. The samples are connected to the transducer such that the first radiating surface of the ultrasonic transducer is in thermal and acoustic contact with the surface of the first test sample, and the second radiating surface of the ultrasonic transducer is only in thermal contact with the surface of the second test sample. Temperature signals are detected in points of the first and second test samples, respectively, lying symmetrically and at equal distance relative to the first and second radiating surfaces of the ultrasonic transducer, respectively, and the value of acoustic power emitted to the first test sample is determined from temperature measurement results.

EFFECT: high measurement accuracy.

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