The Determination of the Thermodynamic Temperatures of Thermometry Fixed Points in the Range 660 °C to 1064 °C

Author

T P Jones and J Tapping

Affiliations

CSIRO Division of Applied Physics, National Measurement Laboratory, Lindfield, Australia 2070

Journal

Metrologia Create an alert RSS this journal

Issue

Volume 25, Number 1

Citation

T P Jones and J Tapping 1988 Metrologia 25 41

doi: 10.1088/0026-1394/25/1/007


 
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Abstract

The thermodynamic temperatures of the silver, gold and copper-silver eutectic fixed points were measured with a photoelectric pyrometer relative to an aluminium point of 660.302 °C. The values obtained were (961.744 ± 0.055) °C, (1064.145 ± 0.060) °C and (779.583 ± 0.060) °C respectively. Although the final uncertainty of the copper-silver eutectic was similar to that of the other two, the effort necessary to obtain it was much greater and it is not recommended as a major reference point for use in photoelectric pyrometry.

PACS

85.60.-q Optoelectronic devices

07.20.Ka High-temperature instrumentation; pyrometers

07.20.Dt Thermometers

Subjects

Electronics and devices

Instrumentation and measurement

Optics, quantum optics and lasers

Dates

Issue 1 (1988)

Received 18 August 1987



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