HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Some features for the calibration of the hydrophones in the closed chamber

pp. 219-224, vol. 3, 2000

S. Likhachev
All-Russian Scientific Research Institute for Physical-Technical and Radiotechnical Measurements, State Metrology Centre for Underwater Acoustic Measurements (VNIIFTRI. GMCGI), Moscow, Russia

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Abstract: The results reported in this paper show the influence of the sound pressure distribution on the results of the hydrophone calibration in the closed chamber. There was derived the expression binding the error of the measurement with the size of calibrated transducers and their positions related to the geometrical center of the cavity of the chamber. The corrected results of calibration by means of piezoelectric compensation were compared to the results of the reciprocity standard method calibration.

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