Multipoint laser vibrometer for modal analysis.

Multipoint laser vibrometer for modal analysis. Research Abstract Details 

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Multipoint laser vibrometer for modal analysis. Abstract Text:

William N MacPherson,Mark Reeves,David P Towers,Andrew J Moore,Julian D C Jones,Martin Dale,Craig Edwards,William N MacPherson,Mark Reeves,David P Towers,Andrew J Moore,Julian D C Jones,Martin Dale,Craig Edwards,

Experimental modal analysis of multifrequency vibration requires a measurement system with appropriate temporal and spatial resolution to recover the mode shapes. To fully understand the vibration it is necessary to be able to measure not only the vibration amplitude but also the vibration phase. We describe a multipoint laser vibrometer that is capable of high spatial and temporal resolution with simultaneous measurement of 256 points along a line at up to 80 kHz. The multipoint vibrometer is demonstrated by recovering modal vibration data from a simple test object subject to transient excitation. A practical application is presented in which the vibrometer is used to measure vibration on a squealing rotating disk brake.

Multipoint laser vibrometer for modal analysis. Publishing Authors By Initials

WN MacPherson,M Reeves,DP Towers,AJ Moore,JD Jones,M Dale,C Edwards,WN MacPherson,M Reeves,DP Towers,AJ Moore,JD Jones,M Dale,C Edwards,

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Multipoint laser vibrometer for modal analysis. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Applied optics

VOLUME: 46

Page Numbers: 3126-32

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ISSN: 0003-6935

DAY: 1

MONTH: Jun

YEAR: 2007

Multipoint laser vibrometer for modal analysis. Information

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LANGUAGE: eng

NlmUniqueID: 247660

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Grant and Affiliation Information for Multipoint laser vibrometer for modal analysis.

AFFILIATION: School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK. w.n.macpherson@hw.ac.uk

Country: United States

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MEDLINETA: Appl Opt

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