Abstract
This paper describes how TV-holography or electronic-speckle-pattern interferometry (ESP) can be used to monitor and measure with interferometric sensitivity the surface behavior, vibrations and deformations of objects heated to temperatures up to +3000°C. If problems due to rapid microstructure changes and the object actually melting are disregarded, the temperature limits are determined by the accessible laser illumination due to the increasing background radiantion.
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Malmo, J.T., Jøkberg, O.J. & Slettemoen, G.A. Interferometric testing at very high temperatures by TV holography (ESPI). Experimental Mechanics 28, 315–321 (1988). https://doi.org/10.1007/BF02329029
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DOI: https://doi.org/10.1007/BF02329029