What is the working principle of the engine oil pressure sensor?

[DeKate]

The working principle of the engine oil pressure sensor is: 1. The amplified pressure signal is connected to the oil pressure gauge through the signal line, changing the current ratio between the two coils inside the oil pressure gauge, thereby indicating the engine's oil pressure; 2. The pressure signal, after voltage and current amplification, is also compared with the alarm voltage set in the alarm circuit. When it falls below the alarm voltage, the alarm circuit outputs an alarm signal and lights up the warning light through the alarm line. The solutions for excessively high engine oil pressure are: 1. Adjust the clearance between the shaft neck and bearing of the pressure lubrication part; 2. Clean the oil pipes and oil passages, and maintain the filter; 3. Select the appropriate oil grade; 4. Replace the oil with the appropriate viscosity; 5. Check and adjust the pressure relief valve on the oil pump test bench to ensure the oil pressure meets the specified requirements.