摘要
介绍了检定热量表配对温度传感器的温度标准。选择了2支B级的工业铂电阻温度计进行试验,实验结果表明,其在(0~90)℃的年稳定性优于3mK。在此基础上,采用电阻比值形值方法计算温度值,能消除温度计长期漂移的影响,减小测量不确定度,由此可确定该温度计可作为检定热量表配对温度传感器的温度标准。
Temperature standard instruments are studied for the temperature sensor pair of heat meter. Two grade B industrial platinum resistance thermometers (IPRTs) are tested. The experiments showed that the stability of high precise IPRT is 3 mk in the temperature range from 0℃to 90℃ per year. The resistance drifts of the IPRTs were eliminated by using W value calculation and the accuracy of the calibration is improved.
出处
《计量学报》
CSCD
北大核心
2011年第B12期74-76,共3页
Acta Metrologica Sinica
基金
“十一五”国家科技支撑计划标准专项(2009BAK66801)
关键词
计量学
温度标准
热量表
配对温度传感器
稳定性
Metrology
Temperature Standard
Heat meter
Temperature sensor pair
Stability