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2 090 984

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C1

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IPC

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Application

93026869/09, 1993-05-19

(22)

Actual filing date

1993-05-19

(45)

Published

1997-09-20

(72)

Inventor

Agranovskij A.V.Bychkov V.B.Maslov V.K.Rozenberg A.V.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Nauchno-Issledovatel'Skij Institut Fiziko-Tekhnicheskikh I Radiotekhnicheskikh Izmerenij"

HYDROPHONE SENSITIVITY MEASUREMENTS ON BOARD SEA-GOING SHIPS BY METHOD OF COMPARISON IN LOW-FREQUENCY RANGE Russian patent published in 1997 - IPC

Abstract RU 2090984 C1

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

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RU 2 090 984 C1

Authors

Agranovskij A.V.

Bychkov V.B.

Maslov V.K.

Rozenberg A.V.

Dates

1997-09-20—Published

1993-05-19—Filed

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