FIELD: measurement equipment.
SUBSTANCE: first at the inlet of the inspected hydrophone tract they connect an equivalent with a narrow-band spectrum of one value, and then they connect an electric equivalent with a narrow band spectrum of another value. At the outlet of the inspect tract they take the ratio of received response of supplied test signals. At the equality of this ratio with the ratio of test signals they diagnose good condition of the hydroacoustic tract.
EFFECT: elimination of necessity to perform temperature measurements during practical implementation of the invention.
1 dwg
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