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Working Standard Microphones(Free-field Comparison Method)
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JJG 482-2017
实验室标准传声器检定规程(自由场互易法)
Laboratory Standard Microphones(Free-field Reciprocity Method)
2017-11-20
JJG 1019-2007
工作标准传声器(耦合腔比较法)检定规程
Verification Regulation of Working Standard Microphones (Coupler Comparison Method)
2007-02-28
GB/T 20441.8-2025
电声学 测量传声器 第8部分：测定工作标准传声器自由场灵敏度的比较法
Electroacoustics—Measurement microphones—Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
2025-05-30
JJG 185-2017
500Hz～1MHz标准水听器(自由场比较法)检定规程
Standard Hydrophones in the Frequency Range 500 Hz to 1 MHz(Free-field Comparison Method)