Chapter
Apr 26, 2012
Multipoint Detection of Acoustic Emissions in Structures by an Interferometric Fiber Optic Sensor
Authors: Yang Zhao, Zhoungyu Chen, and Fahard AnsariAuthor Affiliations
Publication: Condition Monitoring of Materials and Structures
Abstract
Development of a fiber optic sensor for detection of acoustic emissions in civil structures is described. The main advantage of the sensor is its multi-point signal detection capability eliminating the need for intricate triangulation procedures normally associated in locating the source of acoustic emission (AE) signals. The fiber optic sensor is interferometric based, and a filtering system eliminates the noise associated with signals originating from sources other than the AE events. Preliminary experiments with concrete and steel specimens indicate that a single fiber optic sensor is capable of locating the source of the AE event.
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Published In
Condition Monitoring of Materials and Structures
Pages: 30 - 43
Copyright
© 2000 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Authors
Affiliations
Yang Zhao
Post Doctoral Fellow, Civil & Materials Engineering Department, University of Illinois at Chicago, Chicago IL60607
Zhoungyu Chen
Visiting Scholar, Civil & Materials Engineering Department, University of Illinois at Chicago, Chicago, IL60607
Fahard Ansari
Professor, Civil & Materials Engineering Department, University of Illinois at Chicago, Chicago IL60607
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.