Prospects for speckle-pattern based vibration sensing in electromechanical equipment

Gangopadhyay, T.K. and Henderson, P.J. (1999) Prospects for speckle-pattern based vibration sensing in electromechanical equipment. Review of: Prospects for speckle-pattern based vibration sensing in electromechanical equipment by UNSPECIFIED. Measurement Science & Technology, 10 (9). R129-R138. ISSN 0957-0233. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1088/0957-0233/10/9/202

Abstract

Condition monitoring of heavy electromechanical equipment such as electrical switchgear is increasingly reliant on vibration sensing technology. Of applicable optical methods, electronic speckle-pattern interferometry (ESPI) is established as a sensitive whole-field technique for monitoring surface vibration. Such systems incorporate video signal processing to offer automated real-time measurement of vibrational amplitude and phase. Speckle fluctuations, often a source of noise, may also be utilized within multimode fibres for fast one-dimensional sensing. This paper discusses the optoelectronic processing behind such speckle metrologies, and reviews technological developments suited to vibration monitoring in extreme electromechanical environments. Advances in the technology, particularly in the areas of transient and multiple-frequency response, will be driven by the application and the ability to fabricate industry-compatible system prototypes.

Item Type: Review
Uncontrolled keywords: speckle; interferometry; ESPI; vibration measurement
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts
Depositing User: I.T. Ekpo
Date Deposited: 22 Jun 2009 05:13
Last Modified: 22 Jun 2009 05:13
Resource URI: http://kar.kent.ac.uk/id/eprint/16796 (The current URI for this page, for reference purposes)
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