GB/T 4130-2000 (English Version) Acoustics-Low frequency calibration methods of hydrophones

Standard No.: GB/T 4130-2000
Language: Chinese, Available in English version
Release Date: 2000
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-05
Replace By: GB/T 4130-2017
Latest: GB/T 4130-2017
Replace: GB/T 4130-1984

Scope: This standard specifies the method for calibrating hydrophones within the frequency range of 1Hz to 3.15Hz. The methods specified in this standard are divided into primary calibration methods and secondary calibration methods. The calibration uncertainty of the primary calibration method is not more than 0.5dB, and it is mainly used to calibrate standard hydrophones. It includes coupled cavity reciprocity method, piezoelectric compensation method and vibrating liquid column method. The calibration uncertainty of the secondary calibration method is not greater than 1.0dB, and it is mainly used to calibrate and measure hydrophones. It includes the closed chamber comparison method and the pistonphone calibration method.

GB/T 4130-2000 history