What Is a Tachometer Generator?

The tachometer is one of the necessary instruments in the machinery industry to determine the speed, linear speed or frequency of the motor. Commonly used in motor, electric fan, paper making, plastic, chemical fiber, washing machine, automobile, airplane, ship and other manufacturing industries. Most commonly used are handheld centrifugal tachometers. Tachometer measurement is essential in all areas of the national economy.

Numbers Tachometer will receive

The tachometer is generally set in the instrument panel, which is opposite to the speedometer

Tachometer (4 photos)

Weigh them together. The tachometer works according to the magnetic principle, it receives the pulse signal generated when the primary current in the ignition coil is interrupted, and converts this signal into a displayable speed value. The faster the engine speed, the more pulses generated by the ignition coil, the greater the speed value displayed on the table.

Cars are generally electronic tachometers, with pointer type and LCD digital display type. There are digital integrated circuits in the table. It calculates the voltage pulse sent by the ignition coil to drive the pointer to move or digital display. In addition, there is a tachometer that displays the tachometer value after taking out the pulse signal from the generator and sending it to the tachometer circuit for interpretation. However, due to factors such as the generator belt slipping, the value is not accurate.