GB/T 42559-2023 Active National standards

GB/T 42559-2023 Acoustics—Measurement of phase-shifted sensitivity of interferometric fiber-optic hydrophones

Publish Date: 2023-05-23 Implement Date: 2023-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 42559-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Acoustic metrology

ICS Name: The noise of the transportation vehicle

Publish Date: 2023-05-23

Implement Date: 2023-12-01

Pages: 36 pages

Scope

This document describes the measurement principles, measurement devices, measurement conditions, measurement methods, and measurement uncertainties for measuring the sound pressure phase shift sensitivity of interferometric fiber optic hydrophones using interference fringe counting, Bessel function ratio, phase-generated carrier demodulation, differential time-delay heterodyne demodulation, and 3×3 coupler phase demodulation methods.
This document is applicable to the measurement of the phase shift sensitivity of interferometric fiber optic hydrophones within the frequency range of 10 Hz to 20 kHz.
Note: When the measurement results of the phase shift sensitivity level given by the above methods deviate by more than 3 dB, the measurement results obtained by the interference fringe counting method shall prevail.

Development Information

Word Count: 72 Thousand words Pages: 36 pages

Referenced Standards

GB/T 3947-1996 Acoustical terminology GB/T 4130-2017 Acoustics—Low frequency calibration methods of hydrophones GB/T 7965-2002 Acoustics—Measurement of underwater sound transducers GB/T 14733.12-2008 Terminology for telecommunication—Optical communication JJG 449-2014 Octave-Band and Fractional-Octave-Band Filters

Related Standards

GB 12525-1990 Active

GB 12525-1990 Emission standards and measurement methods of railway noise on the boundary alongside railway line

Publish Date: 1990-11-09

GB 13326-1991 Replaced

GB 13326-1991 Sound limit of central station air handling units

Publish Date: 1991-12-07

GB/T 13325-1991 Abolished

GB/T 13325-1991 Noise emitted by machinery and equipment—Guidelines for the preparation of test codes of engineering grade requiring noise measurements at the operator's or bystander's position

Publish Date: 1991-12-14

GB/T 14365-1993 Replaced

GB/T 14365-1993 Acoustics—Measurement of noise emitted by stationary road vehicles

Publish Date: 1993-03-17

GB 14892-1994 Replaced

GB 14892-1994 Noise limits inside driver's cabs and passenger compartments of subway powered car train-sets

Publish Date: 1994-01-05

GB/T 14893-1994 Replaced

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Publish Date: 1994-01-05