NDLI: Measurement of in-plane surface strain by hologram interferometry

Content Provider	Scilit
Author	Ennos, A. E.
Copyright Year	1968
Description	Journal: Journal of Physics E: Scientific Instruments It is shown that the interference fringe patterns obtained by hologram interferometry provide information about surface displacement resolved in one direction only. By recording holograms of the surface from different viewpoints and operating numerically upon the fringe order numbers at corresponding points on the surface, it is possible to measure the displacement in any chosen direction. As an example, the strain in the plane of a stretched metal foil was measured by recording two `frozen-fringe' holograms simultaneously and subtracting one set of fringe contours from the other.
Related Links	http://iopscience.iop.org/article/10.1088/0022-3735/1/7/307/pdf
Ending Page	734
Page Count	4
Starting Page	731
ISSN	00223735
DOI	10.1088/0022-3735/1/7/307
Journal	Journal of Physics E: Scientific Instruments
Issue Number	7
Volume Number	1
Language	English
Publisher	IOP Publishing
Publisher Date	1968-07-01
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics E: Scientific Instruments
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Instrumentation Engineering Materials Science

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Measurement of in-plane surface strain by hologram interferometry