Sensors based on microelectromechanial system(MEMS) technology have the advantages of small size
less weight and low cost.A pressure sensor based on Si
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N
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pressure sensitive membrane with MEMS technology is designed.Strain gauge is used to measure the pressure.The characteristics of the sensor are calculated and simulated
process is designed
and a sample sensor is made out.The remarkable advantages of the sensors are simple structure and easy process.The sensor is tested under the condition of 50~100 kPa