Specifies performance requirements for coupler-type acoustical calibrators. For each microphone type that may be used with the calibrator, requirements include the sound pressure level in the coupler, the frequency of the sound, and the determination of the influence of atmospheric pressure, temperature, humidity, and magnetic fields on the pressure level and frequency of the sound produced by the calibrator. Specifications are to be met within stated tolerances at each frequency and sound pressure level of operation.
Số hiệu tiêu chuẩn
ANSI S 1.40
Tên tiêu chuẩn
Specification for acoustical calibrators
Ngày phát hành
1984-00-00
Từ khóa
Acoustics * Calibration * Calibrator * Noise measurements * Power measuring instruments * Sound meters * Specification * Specification (approval)
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ANSI S 1.40