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Measurement Devices: Tachometers.

  1. Oct 15, 2012 #1
    Hello All,

    I am experimenting with DC motors and different speed settings, and I am looking for a way to measure RPM at different voltages and loads. I have been looking at different tachometers and trying to determine what my best option is. The reading does not have to be super sensitive, and I am trying to make it as simple as possible. So far I have found an analog and a laser hand-held tachometer which seems to be my cheapest option.


    Anyone used these or have any suggestions for other tachometer solutions that are cheap and for small scale 0.25" or so shafts?

    I know a device exists that will read rpm from a given motor based on voltage input, but unfortunately said device would be specific to its motor. I dont know if I want to try and build such a thing for the motor I have. :bugeye:
  2. jcsd
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