HYDROPHONE SENSITIVITY MEASUREMENTS ON BOARD SEA-GOING SHIPS BY METHOD OF COMPARISON IN LOW-FREQUENCY RANGE

摘要

FIELD: hydroacoustics; calibrating hydrophones of stationary measuring systems in infrasound range. SUBSTANCE: sound signal is emitted by source located at long distance compared to depth of measurement site so that hydrophone to be calibrated and near by standard one are located in homogeneity region of sound field formed in sections of interference pattern maximum, and calibration is made by method of comparison. EFFECT: facilitated procedure. 4 dwg