Figure 1  -  Tachometric sensor.
Figure 1 - Tachometric sensor.

 

 

This circuit can be used to sense the speed of any mechanism, coupling to it a magnet to act on a reed switch or using it to control mechanical contacts. The time constant of the RC network is calculated to give the desired range of voltages in the output as function of the frequency of the input pulses generated by the sensor. The circuit can be powered from 5 to 18 V supplies.

 

Datasheets


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