Revolution Meter

Posted on Aug 5, 2012

This is a simple rev-counter which can measure up to 100,000 rpm with method of strobe synchronization. Its usage is easy. Put a marker on the shaft before measureing, light on the shaft by flashing LED and adjust flashing frequency with the potentiometer as keeping the marker still. The rotation will able to be read from scale of the dial. To avoid measurment error due to unintentional second or more harmonic lock, it should scan from higher value to lower value.

Revolution Meter
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    USB Single Cell Charger
    Triangle-square wave oscillator
    Logic probe yields three discrete states
    12V Auto-Powered Circuit For Cassette Recorders
    Computer Microphone
    lm1881 video sync for tv and lcd monitor separator
    220V Power Line Interface
    ujt triggering circuit
    Diamond differential amplifier circuit input