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Differential pressure sensor is mainly used to measure the difference between two pressures, which is often used to measure the pressure difference between the front and rear ends of a device or component. Differential pressure sensor with its high performance price, reliable and stable performance to attract users, in the automotive field, differential pressure sensor has a very wide range of applications. Today, let's learn how the differential pressure sensor works. Take a look!

For differential pressure sensor, to understand its principle on the basis of better play to its advantages, the following is about the working principle of differential pressure sensor introduction.

Working principle of differential pressure sensor

The working principle of the differential pressure sensor is that the measured pressure acts directly on the diaphragm of the sensor, so that the diaphragm forms a micro displacement proportional to the water pressure, so that the capacitance value of the sensor changes, and the electronic circuit detects this change, and converts the output of a standard accurate measurement signal corresponding to the pressure.

Where is the differential pressure sensor installed?

1, the sensor should be installed in the highest possible position.

2. The sensor should be installed in the vertical direction and the pressure input port should be downward. The tilt Angle of the pressure input port shall be less than 15°.

3. It is recommended to install the pressure port for the first time: the radial installation force is allowed to be 80N at the high pressure end and 40N at the low pressure end. The radial force allowed for normal operation of the sensor is 40N at the high pressure end and 20N at the low pressure end.

4, the sensor should be installed in the appropriate position or on the specified bracket. The sensor should be installed with M6 screws, and the tightening torque is as follows: 8 soil 2Nm. 5. The rubber hose and metal conduit connected to the sensor should be continuously lowered, and the u-shaped structure should not occur.

6. Ensure no water vapor and other impurities accumulate in the sensor.

7, sensor electrical connection should avoid exposure to high temperature environment.

8, the sensor should be installed in the location can avoid dust and soil pollution

What is the effect of differential pressure sensor failure?

1. If the differential pressure sensor is broken, the fault light will be on and the engine torque will be limited. In addition, if the differential pressure sensor is broken, the signal collected by the engine control unit will be wrong, and the signal error will make the calculated air intake inaccurate, resulting in abnormal engine work. Differential pressure sensor is a sensor used to accurately measure the difference between two pressures, generally used to accurately measure the pressure difference between the front and rear sides of a device or component;

2, differential pressure sensor is used to accurately measure the difference between two pressure sensors, generally used to measure the pressure difference between the front and rear ends of equipment or components. The measured pressure acts directly on the diaphragm of the sensor, so that the diaphragm forms a micro-displacement proportional to the water pressure, so that the capacitance value of the sensor changes, and its change is detected electronically. Integrated circuit, and transform the output of the corresponding pressure within the standard accurate measurement signal.

3, sensor is a kind of detection device, can feel the accurately measured information, can feel the information, according to a certain law into electrical signal or other required form of information output, in order to achieve the transmission, processing, storage, display, recording and control of information and other requirements.

This is the introduction of the working principle of the differential pressure sensor. See here, do you have a more profound understanding of the differential pressure sensor? With the rapid development of modern science and technology, the performance of differential pressure sensor is more and more stable and perfect, in the future, there will be more and more functions of differential pressure sensor launched, and make more outstanding contributions to various fields.