The use of tachometer introduced by Kunshan tachometer manufacturer

The tachometer is generally set in the instrument panel and symmetrically placed with the speedometer. The tachometer works according to the principle of magnetism. It receives the pulse signal generated when the primary current in the ignition coil is interrupted, and converts the signal into the speed value that can be displayed. The faster the engine speed is, the more pulses are generated by the ignition coil, and the higher the speed value shown on the table.

Cars are generally electronic tachometers, with pointer type and LCD digital display type. There is a digital integrated circuit in the meter, which drives pointer movement or digital display after calculating the voltage pulse transmitted by ignition coil. In addition, there is another kind of tachometer, which takes out the pulse signal from the generator and sends it to the tachometer circuit for interpretation, and then displays the speed value. However, due to factors such as generator belt slipping, the value is not very accurate.