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Proceedings Paper

A Numerical Simulation Of The Quasi-Heterodyne Technique For Double-Pulsed Holographic Vibration Measurements
Author(s): V. B. McKee; R. J. Parker
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Paper Abstract

Double-pulsed holography is an established technique in which the interference pattern between two holographic images shows a fringe pattern which is representative of a vibrating object's response shape. The technique has many industrial applications, a number of which would benefit from an accurate and reliable means of converting the fringe information into numeric data. By the use of a seperate reference beam for each of the measurement pulses it is possible to apply the Quasi-heterodyne technique, also known as fringe-shifting, to convert the fringe information directly into displacement information. This paper demonstrates a numerical simulation of the Quasi-heterodyne process and its use to investigate the error sources which may be present in a real optical system.

Paper Details

Date Published: 31 July 1989
PDF: 12 pages
Proc. SPIE 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis, (31 July 1989); doi: 10.1117/12.952929
Show Author Affiliations
V. B. McKee, Rolls-Royce plc (United Kingdom)
R. J. Parker, Rolls-Royce plc (United Kingdom)

Published in SPIE Proceedings Vol. 1084:
Stress and Vibration: Recent Developments in Industrial Measurement and Analysis

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