Device and method for measuring and calibrating sound intensity
A calibration device, a technology of sound intensity, applied in measurement devices, measurement of ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problems of high processing and installation requirements, low accuracy of results, and increased inaccuracy of calibration, etc. Achieve the effect of stable calibration signal, easy portability, and convenient instant detection
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[0026] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.
[0027] Reference figure 1 Shown is a schematic structural diagram of a sound intensity measurement and calibration device according to an embodiment of the present invention. The sound intensity measurement and calibration device shown includes: a housing upper cover 1, a housing 5, a sleeve 2, a circuit board 7, a speaker 8, a coupling cavity 13, a coupling element 14, a coupling cavity bottom cover 15, and a reference microphone 16. The housing 5 is divided into an upper end 53 and a lower end 54, and the inner diameter of the lower end 54 is smaller than the inner diameter of the upper end 53, and a sound transmission channel 51 is formed inside the lower end 54; the inner surface of the upper end 53 of the housing a...
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