基于单片机信息融合实现对压力传感器的热漂移非线性补偿  

Realization of nonlinear compensation for pressure sensor based on microprocessor information fusion

作　　者：赵彦晓[1] 孙以材[2] 田立强[2] 王静[2] 

机构地区：[1]天津河北工业大学微电子所 [2]河北工业大学

出　　处：《传感器世界》2003年第3期1-7,共7页Sensor World

摘　　要：本文应用Matlab软件,结合实际测定的热零点漂移非抛物线关系及输入压力和输出信号的非线性关系,基于传感器融合理论,融入环境温度信息,为智能化技术提供一种算法和得到压力的解析表达式,同时利用单片机实现了它的非线性和温度补偿。According to the non-parabolic curve of thermal drift obtained from practical measurement and the nonlinear relation between the input pressure and output signal , this paper offers an intelligent arithmetic applying software of Matlab and gets an analytical expression for pressure sensor which is merged environment temperature information on the base of the sensor fusion theory, and realize nonlinear and temperature compensation by using a microprocessor.

关 键 词：压力传感器 单片机 信息融合 非线性补偿 热零点漂移 解析表达式 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]