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Optical Engineering

Fourier transform fringe analysis of electronic speckle pattern interferometry fringes from high-speed rotating components
Author(s): Richard W. T. Preater; Robin C. Swain
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Paper Abstract

The ability to measure in-plane displacement on the surface of a rotating structure under service conditions and real-time analysis to provide component strain distributions would form the ideal experimental optical technique. Pulsed laser electronic speckle pattern interferometry, which can display interference patterns for in-plane displacement in conjunction with the Fourier transform method of fringe analysis, is one attractive approach that is coming closer to this ideal. The optical system used enables a wide range of rotational speeds to be covered with tangential velocities up to 300 m/s.

Paper Details

Date Published: 1 April 1994
PDF: 9 pages
Opt. Eng. 33(4) doi: 10.1117/12.163126
Published in: Optical Engineering Volume 33, Issue 4
Show Author Affiliations
Richard W. T. Preater, City Univ. (United Kingdom)
Robin C. Swain, City Univ. (United Kingdom)

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