Comparative holographic moire interferometry in real time

A holographic moire technique is developed which allows one to compare the resistance to strength in real time of two nominally identical specimens. The moire interference pattern gives contours of path variations related to the difference in displacements of the two specimens. The method is whole f...

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Veröffentlicht in:	Applied Optics 1984-03, Vol.23 (6), p.924-927
1. Verfasser:	RASTOGI, P. K
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Instruments, apparatus, components and techniques common to several branches of physics and astronomy Interferometers Optical instruments, equipment and techniques Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A holographic moire technique is developed which allows one to compare the resistance to strength in real time of two nominally identical specimens. The moire interference pattern gives contours of path variations related to the difference in displacements of the two specimens. The method is whole field and noncontacting; it is demonstrated by comparing deflections of two square plates clamped along the edges and subjected to centrally concentrated loads.
ISSN:	0003-6935 1559-128X 1539-4522
DOI:	10.1364/AO.23.000924