Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-4420
Authors: Zou, Yunlu
Pedrini, Giancarlo
Tiziani, Hans J.
Title: Derivatives obtained directly from displacement data
Issue Date: 1994
metadata.ubs.publikation.typ: Zeitschriftenartikel
metadata.ubs.publikation.source: Optics communications 111 (1994), S. 427-432. URL http://dx.doi.org./10.1016/0030-4018(94)90514-2
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-62196
http://elib.uni-stuttgart.de/handle/11682/4437
http://dx.doi.org/10.18419/opus-4420
Abstract: Two flexible shearing methods taking the derivative information directly from the data for displacement measurement are reported. The displacement information is obtained using a holographic recording directly on a CCD (charge-coupled-device) chip. Besides the advantage of taking the displacement information and the derivative information from a same set of data, other characteristics of these methods are that the derivative sensitivity can be controlled after recordings and displacement derivatives along arbitrary directions can be chosen easily. One method is based on the electronic recording which keeps the complex amplitudes of the wave fronts in a computer. The other needs only the phase modulo 2π of the displacement.
Appears in Collections:07 Fakultät Konstruktions-, Produktions- und Fahrzeugtechnik

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