What are the classifications of sensors in automobiles?

1. According to the physical quantity of the sensor, it can be divided into displacement, force, speed, temperature, flow, gas composition and other sensors.

2. According to the working principle of the sensor, it can be divided into resistance, capacitance, inductance, voltage, Hall, photoelectric, grating, thermocouple and other sensors.

3. According to the nature of the sensor output signal, it can be divided into: switch-type sensors whose outputs are switching values ("1" and "0" or "on" and "off"); The output is an analog sensor; Digital sensor whose output is pulse or code.

Extended data:

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The overall development trend of automotive sensor technology in the future is miniaturization, multifunction and intelligence.

Micro-sensor uses micro-machining technology to package micron-scale sensitive elements, signal processors and data processing devices on one chip. Because of its small size, low price and easy integration, it can obviously improve the test accuracy of the system. At present, the technology is gradually mature, and various micro sensors can be made to detect mechanical quantities, magnetic quantities and heat.

Multifunctional means that one sensor can detect two or more characteristic parameters or chemical parameters, thus reducing the number of automobile sensors and improving the reliability of the system. Intelligence is the combination of sensors and large-scale integrated circuits, which has the function of intelligence.

? Baidu encyclopedia-automobile sensor