Publication
Title
Displacement measurements over a square meter area using digital holographic interferometry
Author
Abstract
Current industrial demand for optical nondestructive testing includes the displacement analysis of large object areas. This paper reports on the use of a digital holographic interferometer to measure displacements over an area of 1.14 m(2). The object under study is a framed working table covered with a Formica layer fixed to a granite bench, and it is observed and illuminated employing a high speed and high resolution camera and a continuous wave high output power laser, respectively. A stabilization procedure needs to be established as long illumination distances are required in order to retrieve the entire surface optical phase during a series of continuous deformations. As a proof of principle, two different tests are presented: the first involves a slow continuous loading process and the second a vibration condition. The wrapped phase and displacement maps are both displayed. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Language
English
Source (journal)
Optical engineering / Society of Photo-Optical Instrumentation Engineers. - Bellingham, Wash.
Publication
Bellingham, Wash. : 2014
ISSN
0091-3286
Volume/pages
53:9(2014), 9 p.
Article Reference
092009
ISI
000339569400008
Medium
E-only publicatie
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 08.09.2014
Last edited 17.08.2017
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