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Optical fiber probes for cryogenic detection of hydrogen

TitoloOptical fiber probes for cryogenic detection of hydrogen
Tipo di pubblicazionePresentazione a Congresso
Anno di Pubblicazione2006
AutoriConsales, M., Cutolo A., Penza Michele, Aversa Patrizia, Giordano M., Guemes A., and Cusano A.
Conference NameOptics InfoBase Conference Papers
EditoreOptical Society of America (OSA)
Conference LocationCancun
Parole chiaveCarbon films, Cryogenic temperatures, Cryogenics, Explosive limits, Fabricated sensors, Fiber optic sensors, Gaseous hydrogen, Hydrogen, Nanotubes, Nitrogen compounds, Optical fiber fabrication, Optical fiber probe, Optical fibers, Silica, Silica optical fibers, Single-walled carbon nanotubes (SWCN), Syndiotactic polystyrenes (sPS), Tin dioxide, Tungsten compounds, Very low temperatures
Abstract

In this work, preliminary results on the capability of Silica Optical Fiber (SOF) sensors, coated by thin films of closed-end (CeSWCNTs) and open-end (OeSWCNTs) Single-Walled Carbon Nanotubes, tin dioxide (SnO2) and Syndiotactic Polystyrene (sPS), to detect low percentage of gaseous hydrogen at cryogenic temperatures are reported. A Time Division Multiplexing (TDM) approach has been employed in order to simultaneously perform the interrogation of all the fabricated sensors. Experimental results demonstrated the potentiality of the proposed configuration to sense gaseous hydrogen with concentration lower than the explosive limit in air, at very low temperatures (113 K). Especially closed ends carbon nanotubes and tin dioxide based sensors have demonstrated significant sensitivity together with good recovery and reversibility features. © 2006 Optical Society of America.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85088757333&doi=10.1364%2fofs.2006.tue70&partnerID=40&md5=f949cbd7efadc48ec40c3ff316e9e0d5
DOI10.1364/ofs.2006.tue70
Citation KeyConsales2006