检定热量表配对温度传感器的温度标准实验研究

Research on the Temperature Standard for the Thermometer Sensor Pair of Heat Meter

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.