一种改善压力传感器曲线拟合特性的方法  

A Method To Improve Curve Fitting Characteristic For Pressure Sensors

作　　者：马军爽[1] 李振东[1] 王维[1] 

机构地区：[1]唐山学院信息工程系,河北唐山063000

出　　处：《微计算机信息》2007年第10期216-217,239,共3页Control & Automation

基　　金：河北省教育厅科研指导项目(z2004467);唐山市机电一体化重点实验室项目(04360802B-10)

摘　　要：压力传感器的输出特性受温度影响很大,把任意温度下传感器的特性都标定出来是不可能的,可以用数据拟合的方法在已测定温度特性曲线的基础上得到所需温度的压力传感器输出特性。本文提出一种采用分段拟合的方法对压力传感器数据进行拟合,通过在实际中的应用证明,这种方法可以显著提高拟合数据的精确性和简便性。Because the output characteristic of pressure sensors is affected greatly by temperature and it is impossible to calibrate all curves at different temperature, data fitting is bringed forth to generate the curve for pressure sensors at any demanded temerature based on the data having been calibrated. A method using paragraph fitting to fit the data of pressure sensors is presented here. Ac-cording to the result of experiment, this method can increase the accuracy of the fitting data and make the fitting process more con-venient.

关 键 词：压力传感器 曲线拟合 分段拟合 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]