利用微机数据处理提高温度测量精度  

Improving temperature measurement precision by using computer data processing

作　　者：郑善锋[1] 郑华杰[1] 黄其智[1] 尚志红[2] 

机构地区：[1]中国科学院广州电子技术研究所,广东广州510070 [2]信息产业部电子五所,广东广州510610

出　　处：《电路与系统学报》2005年第1期90-92,134,共4页Journal of Circuits and Systems

基　　金：广东省自然科学基金资助项目(033338)

摘　　要：本文讨论两种利用微机数据处理提高铂电阻温度传感器测量精度的修正算法。多通道温度数据采集器通过USB总线接口与计算机连接,温度传感器采用Pt100铂电阻,通过修正铂电阻的0°C电阻值R0、100°C与0°C电阻比值W1,有效提高温度测量精度,以达到使用廉价的B级Pt100铂电阻传感器,仍可获得较高的测量精度。Two revisional algorithms are discussed here. These algorithms are used to improving platinum resistance temperature sensor measurement precision by using computer data processing. A multi-channel temperature data collector is linked to computer via USB bus. Pt100 platinum resistances are used as temperature sensors. Effectively improving temperature measurement precision by revising R0 (resistance at 0°C of Pt100) and W1 (ratio of Pt100’s resistance at 0 0 100°C and 0°C). We obtain higher measurement precision using inexpensive class B Pt100 temperature sensor.

关 键 词：Pt100铂电阻 温度测量 USB总线接口:数据处理 

分 类 号：TB942[一般工业技术—计量学]