提高测温系统数据精度的方法及其应用  

A Method to Improve the Precision of the Temperature Measuring System Data and Its Application

作　　者：胥军[1] 吴旭敏[1] 余小华[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《武汉理工大学学报（信息与管理工程版）》2002年第5期138-142,共5页Journal of Wuhan University of Technology：Information & Management Engineering

摘　　要：在温度测量的场合 ,传感器输出的电压或电流等信号往往较弱 ,而且其中还可能含有工频、静电和磁耦合等共模干扰 ,采集工作就需要用特殊的手段来实现 ,否则就会在测量结果中带来较大的误差。为了提高温度测量精度 ,从硬件和软件 2个方面进行了论述 ,提出了可行的方法。由该方法设计的应用系统性价比较高 。In temperature measurement, the signals of voltage and current of a transducer are always faint and there also may exist interference, so special means should be taken when performing measurement tests. In order to improve temperature metrical precision, a practical method is presented based on hardware and software analysis. A temperature measuring system is designed using this method, which can satisfy the requirements of temperature measuring tests.

关 键 词：温度测量系统 热电偶 线性补偿 测量精度 传感器 测量方法 

分 类 号：TH811[机械工程—仪器科学与技术]