Oil pressure sensorIt is widely used in various automobiles and diesel vehicles. Its function is to detect the oil pressure of the engine in real time to ensure the normal operation of the engine. Once the oil pressure is too low, the engine will produce severe friction due to the lack of oil lubrication, resulting in serious engine wear and heat, which may further damage the engine and have a great impact on the overall operation of the vehicle. Therefore, the oil pressure is an important parameter of the engine. Therefore, it is necessary to install an oil pressure measuring device on the engine to detect the oil pressure signal of the engine. If the oil pressure is lower than a certain value, the oil pressure measuring device will send out an alarm signal, and the alarm light installed on the dashboard will light up, thereby reminding the driver to check the engine oil condition.

traditional mechanicalOil pressure sensorThe design principle is that the metal diaphragm deforms under pressure, and a complex mechanical device pushes the slider to slide back and forth on the small sliding rheostat to change the resistance of the sliding rheostat and change the current in the pressure gauge coil to detect pressure. However, its structure has great defects: the sliding wire part of the rheostat has poor wear resistance; The pressure alarm part adopts the form of sliding contact, and the instantaneous impact current is very large. It is easy to generate arc and burn out the alarm contact when switching on and off frequently. It can be seen that the mechanical oil pressure sensor has a short life. Therefore, on the basis of analyzing and solving the problems of mechanical oil pressure sensor, a new structure and new principle of electronic oil pressure sensor is proposed.

Oil pressure sensorInstalled on the main oil passage of the engine. When the engine is running, the pressure measuring device detects the oil pressure, converts the pressure signal into an electrical signal and sends it to the signal processing circuit. After being amplified by the amplifier circuit, it is connected to the oil pressure gauge through the signal line to display the current oil pressure of the engine. At the same time, the pressure signal amplified by the amplifier circuit is compared with the alarm voltage set in the alarm circuit. When it is lower than the alarm voltage, the alarm circuit outputs an alarm signal and lights up the alarm lamp through the alarm line. ElectronicOil pressure sensorThe wiring method is exactly the same as that of the traditional mechanical pressure sensor. It can not only replace the mechanical pressure sensor, but also can be directly connected with the automobile oil pressure gauge and low pressure warning light to accurately display the engine oil pressure and provide low pressure warning signals. Compared with the traditional mechanical oil pressure sensor, the electronic automobile oil pressure sensor has the advantages of simple structure, high precision, good stability, high temperature resistance, and easy mass production. To meet the needs of the development of automotive electronics.

The above are some knowledge points about the oil pressure sensor. I hope everyone can study and understand the relevant information carefully to ensure the normal operation of the equipment.

Jiangmen Hengmin Intelligent Control Instrument Co., Ltd. is a pressure transmitter manufacturer, mainly engaged in oil pressure sensors, wall-mounted boiler water pressure sensors, urea pump pressure sensors, hydrogen pressure sensors, pressure calibrators, automobile pressure sensors, water pump pressure sensors, water pressure Sensors, intelligent pressure controllers, high pressure sensors and other products. Our company found in the research industry production activities that with the increasing popularity of the Internet of Things and intelligent manufacturing concepts, the demand for pressure sensors in my country has grown rapidly in recent years. In response to the needs of the era of intelligent manufacturing, our company has developed high-precision testing instruments and special production system equipment for pressure sensor manufacturers to help sensor manufacturers greatly reduce the labor intensity of testing, reduce the number of workers, improve product quality, improve production efficiency and reduce production costs.