What does the engine tachometer mean?
1 Answers
According to information, the engine tachometer is an instrument used to measure the rotational speed of the engine. The function of the engine tachometer is to detect the working state of the engine and promptly identify any car faults. The method for checking the engine tachometer is as follows: The engine speed can be determined by looking at the engine tachometer on the car dashboard. Generally, the number displayed on the dashboard multiplied by 1000 gives the current engine speed. The level of engine speed relates to the number of work cycles per unit time or the effective power output of the engine. That is, the effective power of the engine varies with different speeds. Introduction to engine speed: The level of engine speed relates to the number of work cycles per unit time or the effective power output of the engine. Therefore, when specifying the effective power of the engine, it is necessary to indicate the corresponding speed at the same time. This is where an engine tachometer is needed to detect the engine speed. Working principle of the tachometer: The tachometer operates based on magnetic principles. 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 the ignition coil generates, and the higher the speed value displayed on the tachometer.
