宇航计测技术 ›› 2020, Vol. 40 ›› Issue (4): 46-53.doi: 10.12060/j.issn.1000-7202.2020.04.09

• 精密测试技术 • 上一篇    下一篇

基于MAX452的压力传感器温度补偿研究

刘溢；吴佳灵；王光明；武东健   

  1. 北京航天计量测试技术研究所，北京 100076
  • 出版日期:2020-08-05 发布日期:2022-03-04
  • 作者简介:刘溢（1988-），男，硕士，主要研究方向：传感器技术研究。

Research of the Temperature Compensation of Pressure Sensor based on MAX1452

LIU Yi；WU Jia-ling；WANG Guang-ming；WU Dong-jian   

  1. Beijing Aerospace Institute for Metrology and Measurement Technology,Beijing 10076,China
  • Online:2020-08-05 Published:2022-03-04

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摘要： 设计了一套基于MAX1452的压力变送和温度补偿系统。通过建立数学模型，分析了温度漂移的原因和补偿机理。设计硬件电路，并编制软件系统。通过试验验证了数学模型和补偿机理的正确性。试验结果显示，传感器补偿后全温度范围内误差相较于补偿前提高了一个数量级。

关键词: 压阻式压力传感器, 温度漂移, 信号调理, 温度补偿, MAX1452

Abstract: A pressure transmitting and temperature drift compensation system is designed based on MAX1452.By establishing a mathematical model,the causes of temperature drift and the compensation mechanism are analyzed.The corresponding circuit and software system are designed.The correctness of the mathematical model and compensation mechanism is verified through experiments.The results show that the total error over the full temperature range after sensor compensation is increased by an order of magnitude.

Key words: Piezoresistive pressure sensor, Temperature drift, Signal conditioning Temperature compensation, MAX1452

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