2011
DOI: 10.1117/12.889475
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Vibration amplitude recovery from time averaged interferograms using the directional spatial carrier phase shifting method

Abstract: The authors of the paper propose a novel approach to the analysis of fringe patterns described by the Bessel function. This kind of patterns can be met while using Time Averaging Interferometry for vibration investigations. The directional spatial carrier phase shifting technique (one of the automatic fringe pattern analysis methods) is proposed to decode the information encoded in the function argument. With additional correction process (the analyzed J 0 function differs from the sinusoidal one) the investig… Show more

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Cited by 4 publications
(1 citation statement)
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“…The height resolution in the order of a fraction of the illumination wavelength is achieved. The instrument also allows characterizing the spatial distribution of the out-of-plane amplitude of MEMS vibration at resonance frequency in dynamic mode [9][10][11][12]. For this reason, it can also be used for the identification of defects, which may be recognized in passive and active modes.…”
Section: Li: Design and Architecturementioning
confidence: 99%
“…The height resolution in the order of a fraction of the illumination wavelength is achieved. The instrument also allows characterizing the spatial distribution of the out-of-plane amplitude of MEMS vibration at resonance frequency in dynamic mode [9][10][11][12]. For this reason, it can also be used for the identification of defects, which may be recognized in passive and active modes.…”
Section: Li: Design and Architecturementioning
confidence: 99%