基于温度补偿算法的精密压力传感器设计  

Design of Precision Pressure Sensor Based on Temperature Compensation Algorithm

作　　者：黄秀珍 HUANG Xiuzhen(School of Science and Art,Zhejiang Sci-Tech University,Zhejiang 312369,China)

机构地区：[1]浙江理工大学科技与艺术学院,浙江312369

出　　处：《集成电路应用》2023年第5期16-18,共3页Application of IC

基　　金：浙理工科艺院科研项目(KY2022004)。

摘　　要：阐述以电阻应变片组成的压力传感器的设计,它作为压力采集元件,将微伏级信号进行高增益差分放大并进行滤波。单片机对信号进行软件滤波,针对传感器的非线性误差进行曲线拟合以及温度补偿,最终输出到LCD显示设备,并带有人机对话通道,对压力传感器进行智能标定。This paper describes the design of a pressure sensor composed of a resistance strain gauge,which is used as a pressure acquisition element to carry out high gain differential amplification and filtering of microvolt level signals.The microcontroller performs software filtering on the signal,performs curve fitting and temperature compensation for the nonlinear error of the sensor,and finally outputs it to an LCD display device with a human-machine dialogue channel for intelligent calibration of the pressure sensor.

关 键 词：压力传感器 温度补偿算法 曲线拟合 精密测量 

分 类 号：TN713[电子电信—电路与系统] TP212[自动化与计算机技术—检测技术与自动化装置] TP268.1[自动化与计算机技术—控制科学与工程]