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Proceedings Paper

Surface contouring using TV holography
Author(s): Hashim Atcha; Ralph P. Tatam; Clive H. Buckberry; Jeremy C. Davies; Julian D. C. Jones
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Paper Abstract

A fiberoptic electronic speckle pattern interferometer illuminated with a diode-laser source has led to a novel system that allows shape measurement. The technique utilizes the modulation of the diode-laser wavelength to produce height contours of the object under study. This technology has been combined with a phase-stepping algorithm to produce a contour map of the object surface and, therefore, a representation of its shape. Results from a profiling study of a gas-turbine compressor blade using contours from 0.9 to 8 mm are presented.

Paper Details

Date Published: 1 September 1991
PDF: 12 pages
Proc. SPIE 1504, Fiber-Optic Metrology and Standards, (1 September 1991); doi: 10.1117/12.46987
Show Author Affiliations
Hashim Atcha, Cranfield Institute of Technology (United Kingdom)
Ralph P. Tatam, Cranfield Institute of Technology (United Kingdom)
Clive H. Buckberry, Rover Group PLC (United Kingdom)
Jeremy C. Davies, Rover Group PLC (United Kingdom)
Julian D. C. Jones, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 1504:
Fiber-Optic Metrology and Standards
Oliverio D.D. Soares, Editor(s)

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