Creating a Reference Plane Ultrasonic Wave in a Fluid Using a Plane Piezoelectric Transducer with a Large Wave Dimension

The article discusses the possibility of using a plane piezoelectric transducer with a large wave dimension as the source of a reference plane ultrasonic wave, which can be used to calibrate hydrophones in the megahertz frequency range. In the experiment, the source was a piezoceramic disk with a di...

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Bibliographic Details
Published inAcoustical physics Vol. 66; no. 5; pp. 449 - 460
Main Authors Krokhmal, A. A., Nikolaev, D. A., Tsysar, S. A., Sapozhnikov, O. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2020
Springer Nature B.V
Subjects
Acoustic emission testing
Acoustics
Classical Problems of Linear Acoustics and Wave Theory
Diameters
Electrical impedance
Frequency ranges
Hydrophones
Physics
Physics and Astronomy
Piezoelectric transducers
Plane waves
hydrophone calibration
plane wave mode
piezoelectric transducer
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Summary:The article discusses the possibility of using a plane piezoelectric transducer with a large wave dimension as the source of a reference plane ultrasonic wave, which can be used to calibrate hydrophones in the megahertz frequency range. In the experiment, the source was a piezoceramic disk with a diameter of 100 mm and a thickness resonance frequency of about 1 MHz. A method was developed for determining the sensitivity of the transducer in the transmit mode by measuring its electrical impedance. A methodology is proposed for finding the parameters of the plane wave component of the emitted acoustic pulse from a known electrical signal on a generator. It is shown that the acoustic pulse profile measured by a calibrated hydrophone near the source agrees well with the theoretically predicted signal.
ISSN:1063-7710
1562-6865
DOI:10.1134/S1063771020050061