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fuel level sensor function
The function of the fuel level sensor is to check the fuel remaining in the fuel tank.
As a whole, modern automobile is a product integrating mechanical structure and circuit design. Its core is the ECU management system of the engine, in addition to the three major parts in the traditional understanding. By reading the data signals transmitted by the sensors on the vehicle, the system monitors various working states of the vehicle at any time.
Traditional sensors can be roughly divided into eight categories according to their functions: pressure sensor, position sensor, temperature sensor, acceleration sensor, angular velocity sensor, flow sensor, gas concentration sensor and liquid level sensor.
Among them, the liquid level sensor is mainly used to detect: fuel level, cooling water level, oil level, electrolyte level, window washer fluid level, brake fluid level, etc. the liquid level sensor converts the liquid level signal in the container into a voltage signal, and then feeds it back to the electronic unit, so that we can accurately know the liquid level in the container.
There are many types of liquid level sensors, including capacitive liquid level sensor and floating ball liquid level sensor. Each liquid level sensor has its advantages and suitable application scenarios.
Generally, it is a sliding rheostat. The resistance value is controlled by a float. With the amount of oil, the resistance value will change. Under the condition of fixed loading voltage, the output current will change. The current value is reflected on the automobile instrument and converted into gasoline volume according to a certain proportion. Generally, due to the irregularity of the fuel tank, the resistance change of the rheostat is not regular. It depends on which manufacturer's oil level sensor you use. Generally, the traditional oil level sensor is controlled by float, which is the kind mentioned by friends above. Our cr-606 series oil level sensor is made based on the principle of capacitance. It has the functions of positioning, mileage calculation, oil level measurement and alarm. At the same time, it can inform the measurement of mailbox temperature, fan temperature, acceleration and so on in real time. This is mainly about the measurement and monitoring of automobile oil level (oil level monitoring).
If you need to buy a liquid level sensor, you'd better make clear what liquid you need to detect, what requirements you have for the sensor, and what functions you need to achieve, and then select the corresponding sensor.
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