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Triple-Fixed-Point Blackbody for the Calibration of Radiation Thermometers

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Abstract

A new triple-fixed-point blackbody containing the fixed-point materials aluminum (freezing point 660.323°C), zinc (FP 419.527°C), and tin (FP 231.928°C) in one device has been developed at the Ilmenau University of Technology. It enables calibration of a radiation thermometer with direct reference to the ITS-90 at three fixed points after a single adjustment of the calibration object. The setup significantly reduces the technical effort and the time for the calibration procedure. Measurements of the phase-transition temperature and the time-dependent blackbody temperature made with a transfer radiation thermometer, the Linearpyrometer LP5 of the IKE Stuttgart, are presented in the article.

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Authors and Affiliations

  1. Technische Universität Ilmenau, Kirchhoffstraße 1, 98693, Ilmenau, Germany

    Marc Schalles & F. Bernhard

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  1. Marc Schalles
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  2. F. Bernhard
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Correspondence to Marc Schalles.

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Schalles, M., Bernhard, F. Triple-Fixed-Point Blackbody for the Calibration of Radiation Thermometers. Int J Thermophys 28, 2049–2058 (2007). https://doi.org/10.1007/s10765-007-0277-9

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  • DOI: https://doi.org/10.1007/s10765-007-0277-9

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