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Proceedings Paper

An Arrangement Of Apparatuses To Get Controlled Impact And Exact Triggering For Ruby Laser Holographic Interferometry
Author(s): V. V . K . Karppinen; T. Hartikainen; H. Karppinen
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Paper Abstract

Ruby laser holographic interferometry is widely used in engineering measurements even in industrial environments. The pockel-cell of the resonator produces short laser pulses and double-pulses, too. These can be used to study the effect of impacts on examined structures. The only problem is suitable triggering of the laser synchoronized with the impact. As impact generators have been used pendulums, hammers and air guns for example. We have built an impact generator (Fig. 1.) based on the steel bullet coming from the rotational axis of the wheel. The triggering electronics have been built up, too.

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967212
Show Author Affiliations
V. V . K . Karppinen, University of Joensuu (Finland)
T. Hartikainen, University of Joensuu (Finland)
H. Karppinen, University of Joensuu (Finland)

Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age
Henri H. Arsenault, Editor(s)

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