The circuit can ensure the strain sensor bridge circuit supply

The circuit can ensure the strain sensor bridge circuit power supply, and the strain bridge imbalance signal is converted to a uniform signal output (0-5,4-20 mA or 0-5V). In absolute pressure Crank Shaft Sensor and transmitter, sapphire sheet, ceramic base with glass solder connected together, played a role in the elastic element, the measured strain gauge pressure transducer is deformed so as to achieve the purpose of the pressure measurement.