Tachometers

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What is a tachometer?

A simple tachometer is a contact type instrument, which can be used to measure speeds where direct access is possible.

 

When to use a techometer?

Tachometers are used measure the speed of rotation of motors, fans, pulleys etc...

 

How to use a tachometer?

In a contact-type tachometer, the wheel of the tachometer is brought in contact with the rotating body. Due to friction between the two, after few seconds the speed of the wheel of the tachometer is the same as the speed of the rotating body. This speed is displayed on the panel as rpm.