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1.Pressure Detection and Measurement: 

The primary function is to sense and quantify pressure (e.g., atmospheric, hydraulic, or pneumatic) and convert it into a readable electrical signal (voltage, current, or digital data). This data is then processed by control systems or displayed for users.

2.System Regulation and Control: 

Provides feedback to control systems to maintain pressure within optimal ranges. For instance, in HVAC systems, it adjusts airflow by monitoring duct pressure, ensuring energy efficiency and comfort. In industrial boilers, it prevents overpressure by triggering safety valves.

3.Safety Monitoring: 

Acts as a safety component in critical systems. In automotive braking systems, it monitors hydraulic pressure to detect faults (e.g., leaks) and activate warning signals or fail-safe modes. In gas pipelines, it alerts to abnormal pressure drops that may indicate leaks.

4.Performance Optimization: 

Helps optimize the efficiency of machinery and processes. In fuel injection systems, it measures fuel rail pressure to adjust injection timing, improving combustion efficiency and reducing emissions. In manufacturing, it ensures consistent pressure in molding processes for uniform product quality.

5.Environmental Sensing: 

Used in weather stations to measure atmospheric pressure, aiding in weather forecasting. In underwater equipment, it detects water pressure to determine depth, supporting activities like diving or oceanographic research.