What is a Tachometer?

A rotation speedometer is a device that measures the instantaneous rotation speed. Also called a tachometer, it also includes a tachometer that measures the number of revolutions in an integrated manner. It is used to measure the rotational speed of engines, motors, generators, etc. In the old days, analog type rotation speedometers that frequency-convert mechanical phenomena and measure rotation speed have been used, but in recent years, optical rotation speedometers that can measure rotation speed instantly without contact have been used. It is mainstream. Lasers and LEDs are used for this.

Application of Tachometer

Rotation speedometers are used to measure the rotational speed of various machines. For example, the engine. The rotation speed of an engine is greatly related to its output and torque. If it is too fast, it will lose stability and there is a risk of damage. In addition, it is necessary to constantly measure the rotation speed in order to finely convert the speed in a transmission such as an automobile. It is also used to verify the rotational speed of air conditioners and ventilators. These rotation speeds are directly linked to performance and are useful in terms of performance evaluation.

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