Comparative study of time average and stroboscopic illumination techniques for vibration fringe analysis

TV holography is a whole field non-contact optical measuring tool for qualitative and quantitative measurement of resonance mode shapes of engineering structures under harmonic excitation. This paper presents results of our experiments for the vibration fringe analysis using TV holography with the c...

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Bibliographic Details
Published inJournal of optics (New Delhi) Vol. 40; no. 4; pp. 184 - 192
Main Authors Kumar, U. Paul, Somasundaram, U., Mohan, N. Krishna, Kothiyal, M. P.
Format Journal Article
LanguageEnglish
Published India Springer-Verlag 01.12.2011
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Research Article
Time-average
Stroboscopic
Resonance mode
Fringe analysis
TV holography
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Summary:TV holography is a whole field non-contact optical measuring tool for qualitative and quantitative measurement of resonance mode shapes of engineering structures under harmonic excitation. This paper presents results of our experiments for the vibration fringe analysis using TV holography with the continuous and the stroboscopic illumination which provide the time-average or the time-resolved respectively of the object vibration modes at resonant frequencies. A comparison between the two methods is highlighted in this paper.
ISSN:0972-8821
0974-6900
DOI:10.1007/s12596-011-0052-y