publication . Article . 2010

Stability of High Temperature Standard Platinum Resistance Thermometers at High Temperatures

Open Access English
  • Published: 01 May 2010 Journal: Sensors & Transducers, volume 116, issue 5, pages 122-130 (issn: 2306-8515, eissn: 1726-5479, Copyright policy)
  • Publisher: IFSA Publishing, S.L.
An investigation of the stability of high temperature standard platinum resistance thermometers HTSPRTs has been carried out for two different designs thermometers (with nominal resistance 0.25 Ω and 2.5 Ω) from two different suppliers. The thermometers were heated for more than 160 hours at temperatures above 960 0C using a vertical furnace with a ceramic block. A study was made of the influence of the heat treatment on the stability of the resistance at the triple point of water, and on the relative resistance W(Ga) at the melting point of gallium. The thermometers showed a correlation between the drift note and the values of W(Ga). It was found also that the ...
free text keywords: HTSPRT, Melting point of gallium, Triple point of water, lcsh:Technology (General), lcsh:T1-995
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[1]. J. Ascoli, M. Asdente, and E. Germagnoli, in J. Physical Chemistery, Solids, Vol. 6, Part 59, 1958.

[2]. R. J. Berry, TMCSI, Vol. 4, Part 2, 1972, pp. 937-949.

[3]. F. Megahed, Y. A. Abdelaziz and M. M. Ammar, Scientific Bulletin Fac. Eng. Ain Shams Univ., Vol. 40, No. 2, 2005.

[4]. Preston-Thomas, H., The International Temperature Scale of 1990, Metrologia, 27, 1990, pp. 3-10.

[5]. Hill K. D., A method to prevent the contamination of platinum resistance thermometers by silver, in Proceedings of TEMPMEKO '96, edited by P. Marcarino, Levrotto & Bella, Torino, 1997.

[6]. Berry R. J. The influence of crystal defects in platinum on platinum resistance thermometry, TMCSI, Vol. 4, Part 2, 1972, pp. 937-949.

[7]. Berry R. J., Analysis and control of electrical insulation leakage in platinum resistance thermometers up to 1064 °C, Metrologia, 32, 1995, pp. 11-25.

[8]. M. Halawa, F. Megahed, Y. A. Abdelaziz and M. M. Ammar, Proc. Math. Phys. Soc. Egypt, No. 76, 2001, pp. 89-103.

[9]. B. E. Walker, C. T. Ewing, and R. R. Miller, Thermoelectric Instability of Some Noble Metal Thermocouples at High Temperatures, The Review of Scientific Instruments, 33, 10, 1962, pp. 1029-1040.

[10].Li, Xumo, Zhang, Jinde, Shu, Jinrong, and Chen, Deming, Metrologia, 18, 1982, pp. 203-208.

[11].Guide to the Expression of Uncertainty in Measurement, Geneva, Switzerland, International Organization for Standardization, 1993.

[12].Henry E. Sostmann, ISOTECH Journal for thermometry, Vol. 2, 1991, pp. 36-37.

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