|
|
|
| Influence of Self-heating Effect of Standard Platinum ResistanceThermometer on Measurement Results |
| REN Jian-ping1,SUN Jian-ping2,LI Ting2,HE Jia-rong3,ZENG Jia-xu4 |
1. Shanxi Inspection and Testing Center(Shanxi Institute of Standardization and Metrology Technology),
Taiyuan, Shanxi 030032, China
2. National Institute of Metrology, Beijing 100029, China
3. Jilin Institute of Metrology and Research, Changchun, Jilin 130022, China
4. China Jiliang University, Hangzhou, Zhejiang 310018, China |
|
|
|
|
Abstract In order to study the effect of self-heating on the measurement results of SPRTs, the research was carried out from the fixed-point method and the comparative method. For the fixed-point method, based on the statistics of SPRT verified by the National Institute of Metrology of China in the past three years, the measurement results of SPRT in different temperature regions before and after self-heating correction were compared. The results showed that the effect of self-heating correction on the value traceability of SPRT was more than 1.5mK, and the maximum reached 6mK. For comparative method, a self-heating measurement scheme based on a constant temperature bath was designed and experimented, and the temperature measurement results before and after the self-heating correction were also compared. The results showed that the deviation caused by self-heating correction still reached 1.5mK. Therefore, it is necessary to correct the effect of self-heating in the precision temperature measurement and value traceability of SPRT.
|
|
Received: 03 January 2020
Published: 24 May 2021
|
|
|
|
|
|
［1］Preston-Thomas H. The International Temperature Scale of 1990(ITS-90)［J］. Metrologia, 1990, 27: 3-10.
［2］White D R, Ballico M, Chimenti V, et al. Uncertainties in the Realization of the SPRT Subranges of the ITS-90 ［J］. International Journal of Thermophysics, 2007, 28 (6): 1868-1881.
［3］邓小龙, 孙建平, 乐凯, 等. 退火对标准铂电阻温度计性能影响的研究［J］. 计量学报, 2015, 36 (1): 26-30.
Deng X L, Sun J P, Le K, et al. The Annealing Effect on the Performance of the Standard Platinum Resistance Thermometer ［J］. Acta Metrologica Sinica, 2015, 36 (1): 26-30.
［4］曾凡超, 曾兵, 孙建平, 等. 基于微型Ga-Sn共晶点的精密铂电阻温度计现场标定 ［J］. 计量学报, 2015, 36 (6): 28-31.
Zeng F C, Zeng B, Sun J P, et al. Precision Platinum Resistance Thermometer inthe Field Calibration Based on Miniature Ga-Sn Eutectic Point ［J］. Acta Metrologica Sinica, 2015, 36 (6): 28-31.
［5］文平, 郝小鹏, 孙建平, 等. 基于微型镓基共晶固定点的温度传感器在轨校准方法研究 ［J］. 计量学报, 2019, 40 (4): 595-602.
Wen P, Hao X P, Sun J P, et al. On-orbit Calibration of Temperature Sensor Based on Miniature Gallium-based Alloy Fixed Point ［J］. Acta Metrologica Sinica, 2019, 40 (4): 595-602.
［6］刁福广, 蔡晋辉, 孙建平, 等. Ga-In-Sn微型共晶点相变特性研究［J］. 计量学报, 2019, 40 (3): 421-426.
Diao F G, Cai J H, Sun J P, et al. Study on Phase Transition Characteristic of Mini Ga-In-Sn Eutectic Fixed Point ［J］. Acta Metrologica Sinica, 2019, 40 (3): 421-426.
［7］Coakley K J, Clark A V, Hehman C S. Methods of reducing the uncertainty of the self-heating correction of a standard platinum resistance thermometer in temperature measurements of the highest accuracy ［J］. Measurement Science & Technology, 2003, 14 (12): 21-51.
［8］Ballico M J, Sukkar D. Temperature Dependence of IPRT and SPRT Self-Heating: Does Working with W Really Help ［J］. International Journal of Thermophysics, 2014, 35 (6): 1067-1076.
［9］Pearce J V, Rusby R L, Harris P M, et al. The optimization of self-heating corrections in resistance thermometry ［J］. Metrologia, 2013, 50 (4): 345-353.
［10］JJG 160—2007, 标准铂电阻温度计 ［S］.
［11］方院生, 王琦, 丁诚, 等.标准铂电阻温度计的自热效应研究及零功率修正方法 ［J］. 测控技术, 2015, 34 (11): 9-11.
Fang Y S, Wang Q, Ding C, et al. Study on Standard Platinum Resistance Thermometer Self-Heating Effect And Zero-Power Correction ［J］. Measurement & Control Technology, 2015, 34 (11): 9-11.
［12］王颖文,张欣,孙建平,等. -38.8344~156.5985℃温区温标偏差方程外推和内插研究 ［J］.计量学报, 2018, 39 (6): 816-821.
Wang Y W, Zhang X, Sun J P, et al. Research on Extrapolation and Interpolation of Temperature Scale Deviation Equation over the Temperature -38.8344~156.5985℃ ［J］. Acta Metrologica Sinica, 2018, 39 (6): 816-821.
［13］Sun J, Zhang J T, Ping Q. Improvements in the realization of the ITS-90 over the temperature range from the melting point of gallium to the freezing point of silver at NIM ［C］//Proceedings of the Ninth International Temperature Symposium. Los Angeles, California,2012, 1552 (1): 277-282.
［14］李利峰, 李锐, 闫小克, 等. 镓熔点温坪复现研究［J］. 计量学报, 2020, 41(4): 419-424.
Li L F, Li R, Yan X K, et al. Study on the Realization of Gallium Melting Point Plateau［J］.Acta Metrologica Sinica, 2020, 41(4): 419-424.
［15］Steur P M, Dematteis R. Water Triple-Point Comparisons: Plateau Averaging or Peak Value ［J］. International Journal of Thermophysics, 2014, 35 (3/4): 620-627. |
|
|
|
2021, Vol. 42 
