2002
DOI: 10.1088/0957-0233/14/1/314
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Decoupling thex,yandzdisplacement components in a rotating disc using three-dimensional pulsed digital holography

Abstract: Three-dimensional twin-pulsed digital holography is used to separate the x, y and z displacement components in a rotating disc. The technique is able to distinguish the rotation and displacement movement along the x y plane from the out-of-plane z displacement. The results show that three-dimensional twin-pulsed digital holography may be used to derotate the object by combining information from three different illumination positions.

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Cited by 5 publications
(1 citation statement)
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“…Although this instrument was able to measure the in-plane displacement components, it was not capable of simultaneous out-of-plane displacement measurement. More recently, a multiple-illumination-direction ESPI system has been used for simultaneous measurement of in-plane and outof-plane displacements of the order of a few micrometres [6]. The measurements were made from a rotating disc using a dual-cavity pulsed Nd:YAG laser with a pulse separation of 20 µs.…”
Section: Introductionmentioning
confidence: 99%
“…Although this instrument was able to measure the in-plane displacement components, it was not capable of simultaneous out-of-plane displacement measurement. More recently, a multiple-illumination-direction ESPI system has been used for simultaneous measurement of in-plane and outof-plane displacements of the order of a few micrometres [6]. The measurements were made from a rotating disc using a dual-cavity pulsed Nd:YAG laser with a pulse separation of 20 µs.…”
Section: Introductionmentioning
confidence: 99%