Design of temperature compensation system based on pressure sensor

Abstract: The design information of the temperature compensation system based on the pressure sensor is provided by the excellent flowmeter and flowmeter production and quotation manufacturers. 【Key words】：Temperature error pressure sensor MAX temperature compensation The temperature drift error of pressure sensor and the nonlinearity of output signal are proposed to use MAX1452 temperature conditioning chip to compensate. The overall sensor temperature compensation system is described. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the design article based on the temperature compensation system of the pressure sensor. 【Key words】：Temperature error pressure sensor MAX temperature compensation The temperature drift error and the nonlinearity of the output signal existing in the pressure sensor are proposed. The MAX1452 temperature conditioning chip is used for compensation. The overall structure of the sensor temperature compensation system is described, and the compensation principle of MAX1452 and the compensation process for the sensor are emphatically expounded. The test results show that after the sensor is compensated, the output signal in the temperature range of -40~80℃ has a good linear relationship with the pressure, and the measurement error is less than 0.8%. [Detailed content]: Introduction The pressure sensor made based on the semiconductor piezoresistive effect needs to be in contact with the measured object during the measurement process to obtain the measurement result. Since the temperature change of the measured object will change the piezoresistive coefficient of the sensor, the piezoresistive effect principle itself will cause the temperature drift of the sensor output. At the same time, due to the non-strict symmetry of the sensor bridge resistance and the leakage of the bridge arm resistance caused by the manufacturing process. Specifications and parameters of the pressure sensor; it adopts a round-membrane elastomer structure, which has high anti-vibration and anti-shock characteristics, and has a long service life. Good static/dynamic characteristics. BPR-39 is made of aluminum alloy material. BPR-40 is made of stainless steel, which has strong corrosion resistance The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Design of Temperature Compensation System Based on Pressure Sensor'

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