高精度软件补偿智能式热电阻温度测控仪  

The High Accurate Intelligent RTD Monitor With Software Compensation

作　　者：白美卿[1] 高富强[1] 

机构地区：[1]重庆大学

出　　处：《自动化仪表》1992年第6期12-15,共4页Process Automation Instrumentation

摘　　要：论述了热电阻测温时因工作电流随热电阻阻值变化所带来的误差,提出了软件技术可以补偿这种误差。根据已设计定型的转换电路完成一个新的修正分度表输入内存,可在全量程范围实现较高转换精度。The error caused by current changing along with the resistance varying of RTDs in RTD temperature measurement can be compensated by software. By storaging a new modified scale into the memory in accrdance with the result from a proven converting circuit, high converting accuracy in full scale range can be accomplished.

关 键 词：温度测量 热电阻 误差 软件补偿 

分 类 号：TH811[机械工程—仪器科学与技术]