分度方法对高精度数字温度计测量结果影响的实验研究  

Experimental Study on Scaling Methods of High Accuracy Digital Thermometer Measurement Results

作　　者：金志军[1] 陈伟昕[1] 张军 曾永春 刘薇 JIN Zhi-jun;CHEN Wei-xin;ZHANG Jun;ZENG Yong-chun;LIU Wei(National Institute of Metrology,Beijing 100029,China;Panran Measurement&Calibration Technology Co Ltd,Taian,Shandong 271000,China;Dalian Bocon Science&Technology Co Ltd,Dalian,Liaoning 116000,China)

机构地区：[1]中国计量科学研究院,北京100029 [2]泰安磐然测控科技有限公司,山东泰安271000 [3]大连博控科技股份有限公司,辽宁大连116000

出　　处：《计量学报》2022年第2期201-204,共4页Acta Metrologica Sinica

基　　金：国家质量监督检验检疫总局NQI项目(2017YFF0205905)。

摘　　要：铂电阻温度传感器用CVD方程、ITS-90国际温标、多项式方程进行分度,并采用高精度数字温度计显示不同方法的测量结果,以分析不同分度方法对于高精度数字温度计测量结果的影响。在-60~300℃进行了实验研究,结果表明,分度方法对于测量结果有一定的影响,在高精度测量条件下可通过方法的选择以提高稳定性和准确度。分度方法的研究应基于铂电阻温度传感器的稳定,电测设备具有良好的准确性。The platinum resistance temperature sensor uses CVD equation,ITS-90 international temperature scale and polynomial equation for indexing,and uses high-precision digital thermometer to display the measurement results of different methods,so as to analyze the influence of different scaling methods on the measurement results of high-precision digital thermometer.The experimental research is carried out at-60~300℃.The results show that the scaling method has a certain influence on the measurement results.Under the condition of high-precision measurement,the stability and accuracy can be improved by selecting the method.The research of scaling method should be based on the stability of platinum resistance temperature thermometer and good accuracy of electrical measuring equipment.

关 键 词：计量学 分度方法 高精度数字温度计 CVD方程 ITS-90 多项式 

分 类 号：TB942[一般工业技术—计量学]