What is a car temperature sensor
automobile temperature sensor refers to a device that can feel the temperature of various media in the operation of automobiles and convert it into an electrical signal and input it into a computer system. It is the input device of the automobile computer system, mainly used to detect the temperature of the engine, coolant and other media, and convert this information into electrical signals for computer processing, to ensure that the engine is in the best working condition .
How automotive temperature sensors work
The operating principle of the automotive temperature sensor is based on the characteristic that the resistance value of the thermal sensor changes with the temperature. For example, the car water temperature sensor is usually a thermistor inside, when the temperature decreases, the resistance value increases; On the contrary, when the temperature rises, the resistance value decreases. This change is converted into an electrical signal for the computer system to process .
Type of automotive temperature sensor
There are many types of automotive temperature sensors, mainly including:
Contact temperature sensor : directly in contact with the measured medium, through thermal conduction temperature changes into electrical signals.
non-contact temperature sensor : does not directly contact with the measured medium, through radiation, reflection and other ways to sense the temperature change.
thermal resistance : The resistance of a material is measured using the property that it varies with temperature.
thermocouple Temperature measurement by means of thermoelectric effect .
Application scenario of automobile temperature sensor
Automotive temperature sensors are widely used in the following scenarios:
Engine temperature monitoring : detects the operating temperature of the engine to ensure that the engine is running in the best working condition.
coolant temperature monitoring : detects the coolant temperature, provides engine temperature information to the ECU, and helps to adjust the working condition of the cooling system .
In short, automotive temperature sensors play a crucial role in automotive electronic systems, by sensing and converting temperature information to ensure that vehicle components operate at the appropriate temperature, improving overall performance and safety.
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