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Experimental determination of the acoustic center of a measuring hydrophone
https://doi.org/10.32446/0368-1025it.2022-10-53-57
Abstract
The following problem is considered in the underwater acoustic. At the same time the location of the hydrophone acoustic center must be known respect to the reference point. A method is proposed for determining the position of the acoustic center of a hydrophone relative to a selected reference center. The scheme of the experiment to determine the position (displacement) of the acoustic center of a hydrophone relative to the geometric center of the active element contour is described. The results of the experiment for different types of hydrophones are presented and the sources of measurement uncertainties are discussed. It is shown that taking into account the displacement of the acoustic center makes it possible to improve the accuracy of the phase calibration of hydrophones. The proposed method can be used in the field of the underwater measurement of the sound pressure receiver sensitivity.
About the Authors
B. I. Khatamtaev
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Bulat I. Khatamtaev
Mendeleevo, Moscow region
N. G. Shcherblyuk
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Nikolay G. Shcherblyuk
Mendeleevo, Moscow region
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Review
For citations:
Khatamtaev B.I., Shcherblyuk N.G. Experimental determination of the acoustic center of a measuring hydrophone. Izmeritel`naya Tekhnika. 2022;(10):53-57. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-10-53-57
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