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Real-time multiple machines sound listening using a phase-OTDR based distributed microphone
University of Campinas, Brazil.ORCID-id: 0000-0002-0137-4245
University of Campinas, Brazil.
RISE - Research Institutes of Sweden, ICT, Acreo.ORCID-id: 0000-0001-8058-2140
RISE - Research Institutes of Sweden, ICT, Acreo.
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2017 (Engelska)Ingår i: SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017, 2017Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

We propose and experimentally demonstrate a spatially tunable phase-OTDR based distributed microphone for listening to the sound of multiple machines. The distributed acoustic sensing capability, allied with the real-time spatial tuning, enables listening to a drill and to a cooling water system pump placed in two different sections along a single optical fiber, one at a time. The recorded acoustic waveform profile of both machines agreed with their operating cycles. Moreover, the sounds generated by both engines are successfully distinguished with the proposed method even when both machines are operating simultaneously..

Ort, förlag, år, upplaga, sidor
2017.
Nyckelord [en]
Distributed acoustic sensing, Optical fiber microphone, Phase-OTDR, Rayleigh scattering, Acoustics, Cooling water, Microphones, Optical fibers, Water cooling systems, Acoustic sensing, Acoustic waveform, Cooling water systems, Distributed microphones, Fiber microphones, Multiple machine, Single optical fibers, Optoelectronic devices
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Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-35322DOI: 10.1109/IMOC.2017.8121039Scopus ID: 2-s2.0-85043711699ISBN: 9781509062416 (tryckt)OAI: oai:DiVA.org:ri-35322DiVA, id: diva2:1258017
Konferens
17th SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017, 27 August 2017 through 30 August 2017
Tillgänglig från: 2018-10-23 Skapad: 2018-10-23 Senast uppdaterad: 2019-06-27Bibliografiskt granskad

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Franciscangelis, CarolinaMargulis, Walter

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