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Infrasound microphone and method of cabibration of infrasound measurement system
Infrasound microphone and method of cabibration of infrasound measurement system
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机译：次声麦克风和次声测量系统的实现方法
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摘要
The object of the invention is an infrasound microphone and a way of calibrating the system to measure infrasound signals. The infrasound microphone contains a hole (3) in the insulator (2) and is permanently connected to the acoustic calibrator (8). CalibrationThe acoustic track includes, in combination with the microphone side, an insulator (5) with an aperture (6) and an aperture (10) of static pressure compensation. Electrical signal generator (11) activated by external power source acoustic transmitter (9)which produces inside the calibrator chamber (8) connected to the rear chamber,(4) microphone established acoustic pressure acting on the back surface of the membrane (1) of the microphone. The electrical signal from the microphone outlet is connected to the measuring system inlet (7).
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