传感技术学报2025，Vol.38Issue(5)：788-793,6.DOI:10.3969/j.issn.1004-1699.2025.05.004
高精度温度传感器温漂误差非线性校正方法
Nonlinear Correction Method for Temperature Drift Error of High Precision Temperature Sensor
摘要
Abstract
The temperature drift error of temperature sensors will gradually accumulate with temperature changes,resulting in a signifi-cant deviation between the temperature measurement results and the actual temperature,which affects the accuracy of temperature sensor measurement.Therefore,a nonlinear correction method for sensor temperature drift error based on SVM regression correction algorithm is proposed.A temperature change function for the sensor is established,the linear and nonlinear relationship between temperature drift and other parameters is obtained,a SVM regression correction space is established,a temperature drift observation sequenceis set,each point in the sequence is mapped to the correction space according to time,a minimum objective function for temperature drift error is de-fined,Lagrange function is used to transform the nonlinear correction problem into a dual optimization problem,point product kernel function is introduced for the corresponding operation and non linear correction of errors is implemented.The experimental results show that the temperature drift error correction results are close to the true temperature fitting,and the corrected temperature drift error is within 0.05,indicating high accuracy and practical value.关键词
温度传感器/非线性校正/回归校正算法/支持向量机/拉格朗日函数/核函数Key words
temperature sensor/nonlinear correction/regression correction algorithm/support vector machine/Lagrangian function/kernel function分类
信息技术与安全科学引用本文复制引用
张晓娟,张婷,樊东燕..高精度温度传感器温漂误差非线性校正方法[J].传感技术学报,2025,38(5):788-793,6.基金项目
山西省科技厅面上青年基金项目(201701D221103) （201701D221103）
山西省科技厅基础研究项目(2014011018-1) （2014011018-1）
