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sensor

4 month ago
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Automotive differential pressure sensor is a device used to detect and measure the difference in pressure between two different points. Such sensors play an important role in modern automotive electronics system, especially in fuel injection, exhaust gas recirculation (EGR), turbocharger control, and air suspension systems. The following is a detailed introduction to the Exhaust Gas Differential Pressure Sensor:
1. Working principle: Differential pressure sensors usually work based on piezoresistive effect or capacitance effect. When pressure is applied, the material inside the sensor deforms, changing its resistance or capacitance. By measuring these changes, the pressure difference between the two places can be calculated.
2. Application field:
- Fuel injection system  : Helps to precisely control the amount of fuel injected.
Exhaust Gas recirculation (EGR) systems: Monitor pressure changes during exhaust gas recirculation to optimize emission performance.
- Turbocharger control: Monitor the pressure difference between intake and exhaust to adjust the working state of the turbocharger.
- Air suspension system: detects the pressure difference between the body and the wheels, thereby adjusting the hardness of the air spring to improve driving comfort and stability.
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