SENSITIVITY DETERMINATION METHOD USING HYDROACOUSTIC RECEIVER FIELD Russian patent published in 2015 - IPC H04R29/00 

FIELD: radio engineering, communication.

SUBSTANCE: radiator, the reference hydrophone with known sensitivity and the graduated receiver are placed in the pool with water at known distances between the radiator and the receiver, and the radiator and the reference hydrophone. The radiator is excited by electric signal and the current through the radiator and output voltages of the receiver and the reference hydrophone are measured. The transfer impedances are determined by the field of the pair radiator - graduated receiver and the pair radiator - reference hydrophone. The sensitivity is determined by the field of the graduated hydroacoustic receiver to the sound pressure by the comparison procedure formula. The sensitivity by the field of the hydroacoustic receiver to the vector values of the hydroacoustic field is determined on the basis of the relation between the sound pressure and the vector value measured by the receiver in free field of the spherical sound wave, by recalculating result to conditions of the flat progression sound wave.

EFFECT: improvement of accuracy of measurements due to expansion of monitored frequency range.

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