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Proceedings Paper

Applied holographic interferometry display and quantification methods
Author(s): Christopher T. Griffen; Slawomir T. Fryska; Paul R. Bernier
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Paper Abstract

Holographic interferometry has emerged as a significant optical imaging tool in supplementing conventional automotive powertrain testing methods in the areas of noise, vibration and durability. This paper focuses on various techniques and applications in measuring inherent structural static and dynamic properties as well as overall noise and vibration characteristics of components, subsystems and complete powertrain systems. Within the scope of continous wave and pulsed interferometry methods for imaging, the areas of display and quantification are discussed. Reflection mode holograms obtained directly as well as generation from transmission holograms are illustrated. Measurement of modulated fringe phase in conjunction with an image processor for three dimensional surface contours is described. Also addressed are removal of rigid body carrier fringes by sandwich techniques. Reflection mode interferometric results are compared to classical two beam transmission interferograms for image quality, fringe characteristics and general technical advantages and drawbacks of each method of display.

Paper Details

Date Published: 1 January 1992
PDF: 13 pages
Proc. SPIE 1600, Intl Symp on Display Holography, (1 January 1992); doi: 10.1117/12.57791
Show Author Affiliations
Christopher T. Griffen, General Motors Corp. (United States)
Slawomir T. Fryska, General Motors Corp. (United States)
Paul R. Bernier, General Motors Corp. (United States)

Published in SPIE Proceedings Vol. 1600:
Intl Symp on Display Holography
Tung H. Jeong, Editor(s)

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