标准铂铑10-铂热电偶热电势约束公式探讨

doi:10.3969/j.issn.1000-1158.2020.02.08

Abstract
Figure/Table
References (12)
Related Citation (15)

Download: PDF (370 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The characteristics of Pt-10% Rh/Pt thermocouple on temperature versus EMFs were described with the calibration results on three fixed point temperatures. In ITPS-68 temperature scale, Pt-10% Rh/Pt thermocouple was selected as interpolation equipment, and its three fixed point EMFs should be restrained to meet the certain formulas. The new constraint formulas on three different fixed point temperatures were derivable from traditional requirement in IPTS-68 to regulate the standard Pt-10% Rh/Pt thermocouple characteristics, and were verified to be efficient by the original data of the great amount of thermocouples from the calibration service laboratory of National Institute of Metrology. The rejection ratio of standard thermocouple at Zn fixed point was slightly raised from 0% to about 3% when the new constraint formulas were applied.

Key words： metrology;Pt-10% Rh/Pt thermocouple thermoelectric characteristics constraint formula ITPS-68 temperature scale

Received: 30 August 2018 Published: 17 February 2020

PACS:

TB942

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHENG Wei
	TANG Lei

Cite this article:

ZHENG Wei,TANG Lei. The Research on the Constraint Formulas of EMFs as a Standard Pt-10% Rh/Pt Thermocouple[J]. Acta Metrologica Sinica, 2020, 41(2): 175-178.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2020.02.08 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2020/V41/I2/175

［1］Quinn T J. Temperature［M］. New York ＆ London: Academic Press, 1983: 254-256.
［2］国家计量局. JJG 75—82 标准铂铑10-铂热电偶［S］. 1982.
［3］国家技术监督局. JJG 75—1995 标准铂铑10-铂热电偶［S］. 1995.
［4］郑玮, 向明东. 铂铑10-铂热电偶在1100℃~1300℃外推计算公式的实验验证［J］. 计量学报, 2007, 28(z1): 69-72.
Zheng W, Xiang M D. The verification of calculation function of PtRh10-Pt thermocouple in range 1100℃ to 1300℃ by experiment techniques. ［J］. Acta Metrologica Sinica, 2007, 28(z1): 69-72.
［5］Burns G W,Scroger M G, Strouse G F, et al. Temperature-Electromotive Force Reference Function and Tables for the Letter-Designed Thermocouple Types Based on the ITS-90［R］. NASA STI/Recon Technical Report N. 93. 31214,1993.
［6］戴乐山, 凌善康. 温度计量［M］. 北京: 中国计量出版社, 1984.

［7］国际温度咨询委员会编. 1990国际温标补充资料［M］. 凌善康, 译. 北京: 中国计量出版社, 1992.
［8］郑玮, 汤磊, 孟宪哲, 等. 标准铂铑10-铂热电偶热电势的统计和分析［C］//第七届全国温度测量与控制学术交流会. 杭州, 2015.
［9］Bedford R E, Kirby C G M. Notes on the Application of the International Practical Temperature Scale of 1968［J］. Metrologia, 1969, 5(3): 83-87.
［10］郑玮, 杨振华. 在液槽中测试热电偶不均匀性方法探索［J］. 计量学报, 2013, 34(4): 356-359.
Zheng W, Yang Z H. Study of inhomogeneity test on Thermocouple in Liquid Bath ［J］. Acta Metrologica Sinica, 2013, 34(4): 356-359.
［11］304所. 热电偶［M］. 北京: 国防工业出版社, 1978.
［12］国家质量监督检验总局. JJG 833—2007标准组铂铑10-铂热电偶［S］. 2007.