HETERODYNE MOIRE INTERFEROMETRY FOR AUTOMATED STRAIN-MEASUREMENT

Authors
MACKENZIE PM WALKER CA MCKELVIE J MCDONACH A
Citation
Pm. Mackenzie et al., HETERODYNE MOIRE INTERFEROMETRY FOR AUTOMATED STRAIN-MEASUREMENT, Journal of strain analysis for engineering design, 29(2), 1994, pp. 129-135
Citations number
8
Categorie Soggetti
Engineering, Mechanical","Material Science
Journal title
Journal of strain analysis for engineering design → ACNP
ISSN journal
03093247
Volume
29
Issue
2
Year of publication
1994
Pages
129 - 135
Database
ISI
SICI code
0309-3247(1994)29:2<129:HMIFAS>2.0.ZU;2-A
Abstract
Moire interferometry is increasingly being applied to investigations i n experimental mechanics. The present work seeks to address the proble m of automated 'real-time' analysis of interferometric Moire fringe pa tterns to obtain strain values. To this end, a portable system is cons tructed to demonstrate the use of an electro-optic heterodyne techniqu e on a single point, single component of strain basis. The prospect of expanding the setup to enable whole-field strain tenser evaluation is also discussed.