In-plane sensitive electronic speckle pattern interferometer using a diffractive holographic optical element
نویسندگان
چکیده
منابع مشابه
Electronic speckle-pattern interferometer using holographic optical elements for vibration measurements.
We report a simple, compact electronic speckle-pattern interferometer (ESPI) incorporating holographic optical elements (HOEs) for the study of out-of-plane vibration. Reflection and transmission HOEs provide reference and object beams in the interferometer. The alignment difficulties with conventional ESPI systems are minimized using HOEs. The time-average ESPI subtraction method is used to ge...
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A lIOftIappr_u 10 detma_ ~&. effed ill ..... ~ IIt:am dt:ctroaie sp«klt: ,.nen iIIterferometer. An intrinsic decorrelation effect in a dual-beam ESPI system for contouring application is quantified by sUnfle image processing tcchmques i.ncorpo~ting experimenta data of speckle patterns. Pracllcal limits for the range of application on contouring an object are also considered from the point of vi...
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ژورنال
عنوان ژورنال: American Journal of Physics
سال: 2011
ISSN: 0002-9505,1943-2909
DOI: 10.1119/1.3533432