A SMART COMPENSATION SYSTEM BASED ON MCA7707 PROCESSOR  

基于MCA7707的智能传感器补偿系统(英文)

作　　者：赵敏[1] 姚敏[1] 颜彦[1] 

机构地区：[1]南京航空航天大学自动化学院

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2001年第1期97-101,共5页南京航空航天大学学报（英文版）

摘　　要：This paper presents a smart compensation system based on MCA7707 (a kind of signal processor). The li near errors and high order errors of a sensor (especially piezoresistive sensor) can be corrected by using this system. It can optimize the process of piezoresi stive sensor calibration and compensation, then, a total error factor within 0.2 % of the sensor′s repeatability errors is obtained. Data are recorded and coeff icients are determined automatically by this system, thus, the sensor compensati on is simplified greatly. For operating easily, a wizard compensation program is designed to correct every error and to get the optimum compensation.讨论了一种基于 MCA770 7的智能传感器补偿系统。该系统可以补偿传感器 (特别是硅压阻传感器 )温度误差的线性部分和高阶非线性部分。通过该芯片的补偿 ,可以使硅压阻式传感器的重复性误差小于 0 .2 %。该系统能够自动地记录和计算各项补偿系数 ,从而大大地简化了补偿的工作量。为了方便操作 ,系统还设计了向导式的工作界面。

关 键 词：MCA7707 processor temp erature compensation piezoresistive sensor 

分 类 号：V212[航空宇航科学与技术—航空宇航推进理论与工程]