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Distributed liquid level sensors using self-heated optical fibers for cryogenic liquid management

Chen, T and Wang, Q and Chen, R and Zhang, B and Lin, Y and Chen, KP (2012) Distributed liquid level sensors using self-heated optical fibers for cryogenic liquid management. Applied Optics, 51 (26). 6282 - 6289. ISSN 1559-128X

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Abstract

We present a continuous liquid level sensing system for both room temperature and cryogenic fluids with millimeter spatial resolution. Change of in-fiber Rayleigh backscattering signal from the distinct thermal response of the heated sensing fiber in liquid and in air were interrogated and spatially resolved using the optical frequency domain reflectometry. Both electrical and optical heating techniques were investigated for cryogenic liquid applications at 4 K, 77 K, and the room temperature. The successful combination of self-heated fiber and wavelength-swept Rayleigh scattering interferometry provides, for the first time to our best knowledge, a truly distributed fuel gauge with high spatial resolution for cryogenic fuel storage, transportation, and management on ground and in space. © 2012 Optical Society of America.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Chen, T
Wang, Q
Chen, R
Zhang, B
Lin, Y
Chen, KPpec9@pitt.eduPEC9
Date: 10 September 2012
Date Type: Publication
Journal or Publication Title: Applied Optics
Volume: 51
Number: 26
Page Range: 6282 - 6289
DOI or Unique Handle: 10.1364/ao.51.006282
Schools and Programs: Swanson School of Engineering > Electrical and Computer Engineering
Refereed: Yes
ISSN: 1559-128X
PubMed ID: 22968264
Date Deposited: 23 Sep 2014 14:57
Last Modified: 03 Feb 2019 04:55
URI: http://d-scholarship.pitt.edu/id/eprint/23057

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