To read revolutions per second on multimeter ?

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Externet
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To read revolutions per second on multimeter ?

Post by Externet »

Hi.
Cheap and not multimeters have the Hertz reading setting.
Would like to implement a simple optical reader aiming a turning shaft with a black/white marking. Perhaps severing the optosensor half of an optocoupler, or a phototransistor, or even a tiny magnet glued to shaft, and a coil to the meter terminals, or, what would be your preferred way ? I do not want to buy a tachometer to use it once and leave it collecting dust.
- Abolish the deciBel ! -
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Janitor Tzap
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Re: To read revolutions per second on multimeter ?

Post by Janitor Tzap »

Here's a video for checking the RPM of an electric motor.
https://www.google.com/search?client=fi ... LB57fgBQ10

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jwax
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Re: To read revolutions per second on multimeter ?

Post by jwax »

Audacity is awesome!
WA2RBA
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