多路硅压阻式压力传感器温度补偿系统的设计与实现

Designing and Implementation of Multi-Channel Silicon Piezoresistive Sensors Temperature Compensating System

基于MAX1457实现了一种多路硅压阻式压力传感器温度补偿系统。MAX1457是一种专用传感器信号调理芯片。此芯片集成化程度较高,可以补偿硅压阻式压力传感器的温度误差和非线性误差。经调理后的综合误差不超过0.1%。在分析该芯片补偿原理的基础上,设计并实现了一种多路补偿系统。

A multi-channel silicon piezoresistive sensors temperature compensating system based on MAX1457 is realized. MAX1457 is a special sensor signal condition chip with highly integration. It is mainly used to com- pensate temperature shift and non-linearity error of silicon piezoresistive sensors. The total error will be limited within 0. 1% FS after the sensor is calibrated. With analyzing the principle of temperature compensating, the design scheme of multi-channel sensors temperature compensating system is introduced.