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Distributed hydrogen sensing using in-fiber Rayleigh scattering

Chen, T and Wang, Q and Chen, R and Zhang, B and Chen, KP and Maklad, M and Swinehart, PR (2012) Distributed hydrogen sensing using in-fiber Rayleigh scattering. Applied Physics Letters, 100 (19). ISSN 0003-6951

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This letter reports a fully distributed hydrogen sensing technique using Rayleigh backscattering in palladium (Pd) and copper (Cu) coated optical fiber. The local in-fiber strain changes due to Pd hydrogen absorptions are interrogated spatially resolved optical frequency domain reflectrometry measurements of the Rayleigh signals. Electrical power is used to induce heating in the Pd coating, which accelerates both the hydrogen response and the sensor recycling. This technique promises an inexpensive and truly distributed fiber solution for continuous hydrogen leak detection with centimeter spatial resolution at room and low temperatures. © 2012 American Institute of Physics.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Chen, T
Wang, Q
Chen, R
Zhang, B
Chen, KPpec9@pitt.eduPEC90000-0002-4830-0817
Maklad, M
Swinehart, PR
Date: 7 May 2012
Date Type: Publication
Journal or Publication Title: Applied Physics Letters
Volume: 100
Number: 19
DOI or Unique Handle: 10.1063/1.4712592
Schools and Programs: Swanson School of Engineering > Electrical and Computer Engineering
Refereed: Yes
ISSN: 0003-6951
Date Deposited: 15 Oct 2014 20:40
Last Modified: 15 Jan 2021 15:55


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