Research on Extrapolation of PPRTs Deviation Equation to -189.3442~156.5985℃
WANG Bo-yang1,ZENG Fan-chao2,HUANG An-yi1,SUN Jian-ping3,FU Cheng-yu2
1. Wuhan University of Technology, Wuhan, Hubei 430070, China
2. Hubei Instiute of Measurement and Testing, Wuhan, Hubei 430223, China
3. National Institute of Metrology, Beijing 100029, China
Abstract：The traceability of precision platinum resistance thermometers (PPRTs) can be improved by using the fixed-points method defined by the International Temperature Scale of 1990 (ITS-90). Due to the small number of fixed-points and the large temperature interval in ITS-90, the extrapolation based on deviation equation is an effective method to solve the problem of thermometer calibration beyond the temperature range. In the experiment, 16 PPRTs were calibrated in the temperature range of -189.3442~156.5985℃ to verify the extrapolation feasibility of the fixed-points method deviation equation and comparison method deviation equation.The experimental results showed that the average maximum difference using the new deviation equation from -38.8344~0.01℃ was 5.2mK when extrapolating to -189.3442℃; the average maximum difference using the deviation equation from 0~29.7646℃ was 2.0mK when extrapolating to 156.5985℃; and the average difference using comparison method deviation equation was less than 3.3mK.All the three equations improved the extrapolation accuracy of PPRTs out of the fixed-points temperature range and provided supporting data for the traceability of spaceborne blackbody radiation source.
［1］Ohring G, Wielicki, B, Spencer R, et al. Satellite Instrument Calibration for Measuring Global Climate Change: Report of a Workshop ［J］. Bulletin of the American Meteorological Society, 2005, 86 (9): 1303-1314.
［2］李凯, 郝小鹏, 宋健, 等. 真空汞固定点黑体辐射源的设计与研制 ［J］. 计量学报, 2020, 41 (4): 413-418.
Li K, Hao X P, Song J, et al. Design and Development of Vacuum Mercury Fixed Point Blackbody Radiation Sou-rce ［J］. Acta Metrologica Sinica, 2020, 41 (4): 413-418.
［3］扈又华, 郝小鹏, 司马瑞衡,等. 大口径高发射率面型黑体辐射源的研制 ［J］. 计量学报, 2021, 42 (3): 314-320.
Hu Y H, Hao X P, Sima R H, et al. Development of Large-aperture and High-emissivity Surface Blackbody Radiation Source ［J］. Acta Metrologica Sinica, 2021, 42 (3): 314-320.
［4］胡朝云, 郝小鹏, 宋健,等. 红外高光谱大气探测仪星载固定点黑体辐射源的研制 ［J］. 计量学报, 2019, 40 (2): 232-239.
Hu Z Y, Hao X P, Song J, et al. Development of Blackbody Radiation Sources at Fixed Point on Satellite of Infrared Hyperspectral Atmospheric Detector ［J］. Acta Metrologica Sinica, 2019, 40 (2): 232-239.
［5］舒心, 郝小鹏, 宋健等. 100～400 K真空红外亮温标准黑体辐射源研制 ［J］. 计量学报, 2019, 40 (1): 13-19.
Shu X, Hao X P, Song J, et al. Research of 100～400 K Vacuum Infrared Radiance Temperature Standard Black-body Source ［J］. Acta Metrologica Sinica, 2019, 40 (1): 13-19.
［6］郝小鹏, 宋健, 孙建平, 等. 风云卫星的红外遥感亮度温度国家计量标准装置 ［J］. 光学精密工程, 2015, 23 (7): 1845-1851.
Hao X P, Song J, Sun J P, et al. Vacuum radiance temperature national standard facility for Infrared remote sensors of Chinese Fengyun meteorological satellites ［J］. Optics and Precision Engineering, 2015, 23 (7): 1845-1851.
［7］龚律宇, 郝小鹏, 孙建平, 等. H500型红外遥感定标高精度真空黑体辐射源的研制 ［J］. 计量学报, 2017, 38 (2): 129-134.
Gong L Y, Hao X P, Sun J P, et al． Development of H500 Type High Precision Vacuum Blackbody Used as a Calibration Standard for Infrared Remote Sensing ［J］. Acta Metrologica Sinica, 2017, 38 (2): 129-134.
［8］宋健,郝小鹏,胡朝云,等. 真空镓固定点黑体辐射源研制［J］.计量学报, 2022, 43(2): 163-168.
Song J,Hao X P,Hu C Y,et al. Development of Vacuum Gallium Fixed-point Blackbody［J］.Acta Metrologica Sinica, 2022, 43(2): 163-168.
［9］马嫣, 尹遵义, 冯玉辉, 等.标准铂电阻固定点复现自动监测装置的设计与应用［J］.工业计量, 2021, 31(5): 35-38.
［10］李书泽, 张武高, 张荣荣, 等. 高精度铂电阻测温电路优化设计 ［J］. 工业仪表与自动化装置, 2005(1): 26-28.
Li S Z, Zhang W G, Zhang R R, et al. Analyse and optimization of non-linear revised circuit for measuring temperature using high precision Pt resistance ［J］. Industrial Instrumentation & Automation, 2005(1): 26-28.
［11］张瑜, 张升伟. 基于铂电阻传感器的高精度温度检测系统设计 ［J］. 传感技术学报, 2010, 23 (3): 311-314.
Zhang Y, Zhang S W. A Design of High Accurate Temperature Measuring System Based on Platinum Resistance Transducers ［J］. Chinese Journal of Sensors and Actuators, 2010, 23 (3): 311-314.
［12］Morozova S, Parfentiev N, Lisiansky B, et al. Vacuum Variable Medium Temperature Blackbody ［J］. International Journal of Thermophysics, 2010, 31 (8-9): 1809-1820.
［13］Sapritsky V, Katysheva A, Krutikov V, et al. Standard radiometric facility for preflight calibration of space borne Earth observation instruments in IR spectral range ［C］// International Conference on New Developments and Applications in Optical Radiometry 12th. 2014.
［14］国家技术监督局计量司. 1990年国际温标宣贯手册［M］. 北京: 中国计量出版社, 1990.
［15］JJG 160—2007标准铂电阻温度计［S］.
［16］Mangum B, Bloembergen P, Chattle M, et al. On the International Temperature Scale of 1990 (ITS-90). Part I: Some definitions ［J］. Metrologia, 1997, 34 (5): 427-429.
［17］Hill K. Inconsistency in the ITS-90 and the triple point of mercury ［J］. Metrologia, 1995, 32 (2): 87-94.
［18］Steele A. ITS-90: Subrange inconsistency below the triple point of water ［J］. Metrologia, 2006, 42 (4): 289-297.
［19］李杰, 孙建平, 康志茹, 等. 0～29. 7646℃温区定点法分度精密铂电阻温度计外推使用的探讨 ［J］. 计量技术, 2013(9): 10-12.
［20］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.
2022, Vol. 43 
