基于LS-SVM的热敏电阻测温系统非线性校正  

Nonlinear calibration for NTC thermistor temperature measurement system based on LS-SVM

作　　者：高金辉[1] 陈玉珠[1] 汪晓晨[1] 

机构地区：[1]河南师范大学

出　　处：《微计算机信息》2009年第31期215-216,211,共3页Control & Automation

摘　　要：从研究NTC热敏电阻的特性出发,根据最小二乘支持向量机自身的特点,基于最小二乘支持向量机提出了一种比较完备的热敏电阻测温系统非线性校正方法。该方法不仅补偿了热敏电阻自身的非线性,而且也校正了整个系统的系统误差。结果表明,这种非线性补偿模型误差小、精度高,网络训练时间短,从而方便热敏电阻测温系统在生产实际中的应用。From the research of NTC thermistor characteristics, in accordance with the characteristics of least squares support vector machines, a relatively complete system of ram-linear thermistor temperature correction methods based on the least squares support vect.r machines is introduced . This method is not only the compensation of its non-linear thermistor, but also the correction nf the entire system of systematic errors. The results show that the nonlinear compensation model has the characteristics of small errors, high-precision and short network training time. thus facilitate the thermistor temperature measurement system in the production of the actual application.

关 键 词：NTC热敏电阻 测温系统 非线性校正 最小二乘支持向量机 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]