Interferometric Studies Of Very Hot Objects By Use Of Tv-Holography (ESPI)

Jan T. Malmo; Ole J. Lokberg

doi:10.1117/12.968839

16 January 1988 Interferometric Studies Of Very Hot Objects By Use Of Tv-Holography (ESPI)

Jan T. Malmo, Ole J. Lokberg

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968839
Event: Laser Technologies in Industry, 1988, Porto, Portugal

Abstract

In this paper we outline the problems encountered when doing interferometric testing of very hot objects. We show how the TV-holography (ESPI) system can be used to test objects heated to temperatures close to the melting point of the material. In the experiments we have monitored vibrations, and surface behaviour of objects heated to temperatures close to 3000'C. The tertmratxre limits are apart from microstructure changes and excessive turbulence, set by the accessible laser illumination to suppress the background radiation.

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Jan T. Malmo and Ole J. Lokberg "Interferometric Studies Of Very Hot Objects By Use Of Tv-Holography (ESPI)", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968839

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