|
|
|
| Development of Miniature Double Temperature Fixed Point Cell |
| ZENG Jia-xu1,PAN Jiang1,SUN Jian-ping2,YANG Yue1,ZHU Tian-meng1,WANG Cheng-ke1 |
1. China Jiliang University, Hangzhou, Zhejiang 310018, China
2. National Institute of Metrology, Beijing 100029, China |
|
|
|
|
Abstract Applying the fixed point transfer technology to on-site temperature calibration has become an important way to improve the industrial temperature measurement level. A miniature dual temperature fixed point for field calibration was developed. The fixed point adopted a porous graphite crucible and a semi-enclosed structure filled with two metals, indium and tin. Experimental results showed, at indium point, the temperature plateau curve lasted about 2 hours, and at tin point, the temperature plateau curve lasted about 3 hours. The extended uncertainty reproduced in temperature plateau curve of In was 4.0mK (k=2), and Sn was 4.4mK (k=2). Therefore, the miniature double temperature fixed point device could meet the calibration requirements of precision platinum resistance thermometers in industrial field.
|
|
Received: 20 September 2019
Published: 20 April 2021
|
|
|
|
|
|
［1］Preston-Thomas H,Quinn T J.The International Temperature Scale of 1990(ITS-90)［J］. Ibid, 1990, 27(1): 3-10.
［2］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 (6A): 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(6A): 28-31.
［3］张洁静. 我国工业温度计量发展状况概述［J］. 中国科技纵横, 2014, (20): 58-58.
［4］张永良,雍海玉,张富余,等. 高精度数字温度装置替代水银温度计的研究与应用［J］. 机械研究与应用, 2017, 30(1): 124-126.
Zhang Y L, Yong H Y, Zhang F Y, et al. Research and Application of High Accuracy Digital Temperature Apparatus Instead of Mercury Thermometer［J］. Mechanical Research & Application, 2017, 30(1): 124-126.
［5］Monalisa R E, Young H L, Yong G K. Fabrication of a mini multi-fixed-point cell for the calibration of industrial platinum resistance thermometers［J］. Measurement Science and Technology, 2017, 28(7): 075007.
［6］Marin S, Hohmann M, Schalles M, et al. Insert with a multiple fixed-point cell for a dry block calibrator［J］. Technisches Messen: Sensoren, Gerate, Systeme, 2015, 82(7/8): 402-410.
［7］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.
［8］李訏谟,赵明坚,陈德明. 新一代的温度固定点［J］. 中国测试技术, 2005, 31(1): 6-9.
Li Y M, Zhao M J, Chen D M. New generation of fixed points［J］. China Measurkement Technology, 2005, 31(1): 6-9.
［9］孙建平. 超微量杂质对锌凝固点相变温度影响的研究进展［D］. 北京:北京科技大学,2013.
［10］Pearce J V, Ogura H, Izuchi M. et al. Evaluation of the Pd-C eutectic fixed point and the Pt/Pd thermocouple［J］. Metrologia, 2009, 46(5): 473-479.
［11］金志军,邱萍,孙建平,等. 新型锡、锌固定点炉的研制［J］. 计量学报, 2007, 28 (z1): 28-30.
Jin Z J, Qu P, Sun J P, et al. A New-fashioned Freezing Points Furnace for Realization of Zinc and Tin Freezing Points［J］. Acta Metrologica Sinica, 2007, 28 (z1): 28-30.
［12］武鑫财,孙建平,张连水,等. 便携式锡凝固点复现技术研究［J］. 计量技术, 2012, (12): 53-56.
［13］孙建平,陈炜,邱萍,等. 新型镓熔点自动复现装置［J］. 计量学报, 2013, 34 (2): 134-137.
Sun J P, Chen W, Qiu P, et al. New Automatic Apparatus of the Melting Point of Gallium［J］. Acta Metrologica Sinica, 2013, 34 (2): 134-137.
［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］Yuan Z D, Wang T J, Lu X F, et al. T90 Measurement of Co-C, Pt-C, and Re-C High-Temperature Fixed Points at the NIM［J］. International Journal of Thermophysics, 2011, 32(7): 1744-1752.
［16］Kawamura Y, Saito I, Nakano T. Realization of the Triple Point of Hg and Observation of a Large Supercooling Using Small Glass Cell［J］. International Journal of Thermophysics, 2019, 40(8):76. |
|
|
|
2021, Vol. 42 
