Speckleinterferometrie mit alternativen Phasenschiebemethoden an Beispielen aus der Defektanalyse

Pfister, Berthold P.; Beck, Martin; Tiziani, Hans J.

doi:10.1007/978-3-642-84736-3_11

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1993

1995

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“…In the spatial-carrier phase-shift methods [10] all the information necessary to reduce an interferograrn to a phase map is recorded simultaneously. This method was successfully applied to the Zeiss interferometer [11] and to continuous speckle interferometry [12][13][14][15] . In this paper we will present its application to double pulsed speckle interferometry.…”

Section: Introductionmentioning

confidence: 99%

Double Pulse-electronic Speckle Interferometry

Pedrini

Pfister

Tiziani

1993

Journal of Modern Optics

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Abstract. In this paper we describe a double-pulsed electronic speckle interferometry system. Two separated speckle patterns are recorded within few microseconds using a charge·coupled device camera, the two images are then stored in a frame grabber and the subtraction method is applied. A quantitative analysis of the fringes using the spatial-carrier phase-shift method is presented. The results show that this method is well suited to study transient vibrations.

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Section: Introductionmentioning

confidence: 99%