International Journal of Thermophysics

, Volume 28, Issue 6, pp 2049–2058 | Cite as

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

  • Marc Schalles
  • F. Bernhard


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.


Aluminum Calibration Phase transformation Radiation thermometry Tin Triple-fixed-point blackbody zinc 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Technische Universität IlmenauIlmenauGermany

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