High temperature applications of laser interferometry

M. Aslan, Bernhard R. Tittmann

Research output: Contribution to journalArticle

Abstract

Many industrial processes require non-contact sensors for various reasons, including high temperature, moving parts, hostile environment (viz. nuclear radiation, high power laser radiation, etc.) or simply the necessity for remoteness. This paper presents a review of our recent research and development on the measurement of displacement by four laser optical methods. These are: (1a) a point displacement method at 30 Hz, (1b) a microscopic laser speckle interferometry at 250 frames/s, (2) a shearographic fringe imager in the kHz frequency range, (3) a Fabry-Perot speckle interferometer for measurement of relative displacement amplitude also in the low MHz range. Each of the methods is presented in the context of an industrial application.

Original languageEnglish (US)
JournalActa Physica Sinica (overseas Edition)
Volume8 SUPPL.
Issue number1
StatePublished - Dec 1 1999

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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