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oil pressure sensor on jeep grand cherokee
Oil pressure sensor on jeep grand cherokee is close to the oil filter element, which is an important device to detect the oil pressure of the automobile engine. The detected data helps to control the normal operation of the engine. The oil pressure sensor is installed in the main oil gallery of the engine.
After voltage amplification and current amplification, the amplified pressure signal is connected to the oil pressure indicator through the signal line, and the current proportion of the two coils in the oil pressure indicator changes, indicating the engine oil pressure.Thick-film pressure sensor is a new strain-type pressure sensor that appeared in the 1980s. It is developed by using the piezoresistive effect of thick-film resistors printed and sintered on ceramic elastomers.Four thick film resistors are directly printed and sintered on the ceramic elastic membrane, and connected to form a Wheatstone bridge through a conducting band.
The pressure signal amplified by voltage and current is also compared with the alarm voltage set in the alarm circuit. When the voltage is lower than the alarm voltage, the alarm circuit outputs an alarm signal and lights up the alarm lamp through the alarm line. The wiring mode of the electronic oil pressure sensor is completely consistent with that of the traditional mechanical sensor. It can replace the mechanical pressure sensor and directly connect with the automobile oil pressure indicator and low pressure alarm light to indicate the oil pressure of the diesel automobile engine and provide a low pressure alarm signal. Compared with the traditional piezoresistive oil pressure sensor, the electronic automobile oil pressure sensor has the advantages of no mechanical moving parts (i.e. no contact), high accuracy, high reliability, long life, etc., which meets the requirements of the development of automobile electronics. Due to the harsh working environment of automobiles, the requirements for sensors are very strict.In the design of electronic automobile oil force sensor, not only the pressure measuring device with high temperature resistance, corrosion resistance and high accuracy should be selected, but also the components with reliable performance and wide working temperature range should be selected, and anti-interference measures should be taken in the circuit to improve the reliability of the sensor.
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