Surface contouring using TV holography

Hashim Atcha; Ralph P. Tatam; Clive H. Buckberry; Jeremy C. Davies; Julian D. C. Jones

doi:10.1117/12.46987

1 September 1991 Surface contouring using TV holography

Hashim Atcha, Ralph P. Tatam, Clive H. Buckberry, Jeremy C. Davies, Julian D. C. Jones

Proceedings Volume 1504, Fiber-Optic Metrology and Standards; (1991) https://doi.org/10.1117/12.46987
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

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.

Citation Download Citation

Hashim Atcha, Ralph P. Tatam, Clive H. Buckberry, Jeremy C. Davies, and Julian D. C. Jones "Surface contouring using TV holography", Proc. SPIE 1504, Fiber-Optic Metrology and Standards, (1 September 1991); https://doi.org/10.1117/12.46987

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