GB/T 20441.4-2006
Measurement microphones. Part 4: Specifications for working standard microphones (English Version)

Standard No.: GB/T 20441.4-2006
Language: Chinese, Available in English version
Release Date: 2006
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20441.4-2006

Scope: This part of GB/T 20441 applies to working standard microphones. This standard specifies the mechanical dimensions and electroacoustic characteristics of working standard microphones used in measuring systems for the determination of sound pressure, which can be used as transfer standards in the calibration of acoustic measuring instruments. This part specifies the classification method of working standard microphones. Microphones are divided into several types according to size and performance, so as to standardize measurement systems, use sound calibrator to calibrate measurement systems and microphones, and exchange microphones in measurement and calibration systems. sex. This section does not explain the principle of transduction of working standard microphones.

GB/T 20441.4-2006 Referenced Document

GB/T 15173-1994 Sound calibrators
IEC 61094-1:1992 Measurement Microphones Part 1: Specifications for Laboratory Standard Microphones (Edition 1.0 ; Corrigendum: 02/1993; EN 61094-1: 1994)
IEC 61094-2:1992 Measurement microphones; part 2: primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
IEC 61094-3:1995 Microphones de mesure Partie 3: Méthode primaire pour l'étalonnage en champ libre des microphones étalons de laboratoire par la méthode de réciprocité (Edition 1.0; Replaces IEC 60486: 1974)

2006 GB/T 20441.4-2006 Measurement microphones. Part 4: Specifications for working standard microphones