传感技术学报2017，Vol.30Issue(7)：1057-1061,5.DOI:10.3969/j.issn.1004-1699.2017.07.015
基于LS-SVR的压力传感器温度自补偿策略
Temperature Self-Compensation Strategy forPressure Sensor Based on LS-SVR
摘要
Abstract
Temperature drift exists in Silicon piezo-resistive pressure sensor as the result of its susceptibility to temperature,which decreases the measurement precision of the sensor.Aiming at the problem that a temperature sensor is needed in traditional temperature compensation method,a temperature self-compensation strategy for pressure sensor based on LS-SVR is proposed,which acquires temperature information by definition and measurement of parameters in the measurement bridge of sensor.PSO algorithm and Cross Validate are applied to optimize the parameters of LS-SVR.The experimental results show that this method can eliminate the temperature drift effectively without an additional temperature sensor.The measurement accuracy can be improved to 0.1%FS.关键词
压力传感器/温度补偿/最小二乘支持向量回归/粒子群优化/K-折交叉验证Key words
pressure sensor/temperature compensation/LS-SVR/PSO/K-fold CV分类
信息技术与安全科学引用本文复制引用
胡启阳,龙军,陈君..基于LS-SVR的压力传感器温度自补偿策略[J].传感技术学报,2017,30(7):1057-1061,5.基金项目
十二五民用航天项目(E020415) （E020415）
