Applications of laser interferometry

Bernhard R. Tittmann

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


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 out-of-plane displacement by four laser optical methods. These are, (1) a point displacement method at 30 Hz, (2) a shearographic fringe imager in the kHz frequency range, (3) a double probe interferometer for time-of-flight measurements in the low MHz frequency range, and (4) 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)
Pages (from-to)171-182
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 1998
EventProceedings of the 1998 Conference on Acousto-Optics and Applications III - Gdansk-Jurata, Pol
Duration: May 18 1998May 22 1998

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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