OK/NG judgment of a motor (on production line)

In this application, put the motor into an acrylic box to avoid the influence of background noise. And then drive the motor and detect the generated noise by the MI-1235 microphone with the MI-3111 microphone preamplifier. The CF-4700 FFT comparator makes OK/NG judgment of the signal through FFT analysis.

*PLC:Programmable Logic Controller


  Model name Product name Remarks
1 CF-4700 FFT Comparator Input channel:1ch
Frequency range:1 Hz to 40 kHz
Dynamic range:110 dB or more
2 MI-1235 1/2-inch Measurement microphone Titanium diaphragm, higher stability, designed to emphasize on characteristic of frequency having wide frequency rangeFrequency range:10 Hz to 20 kHz Maximum sound pressure level:143 dB
3 MI-3111 Microphone preamplifier for the MI-1235 Frequency range:10Hz to 20kHz
Internal noise:-22.3 μVrms or less(FLAT)

* *To see details of the each product, click the model name.



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