An optical fiber methane gas sensing film sensor based on core diameter mismatch
Chinese Optics Letters, Vol. 8, Issue 5, pp. 482-484 (2010)
Acrobat PDF (257 KB)
Abstract
An optical fiber evanescent wave methane gas sensor based on core diameter mismatch is reported. The sensor consists of a multimode fiber in which a short section of standard single-mode fiber, coated with the inclusion of cryptophane molecules E in a transparent polysiloxane film, is inserted. The sensing principle is analyzed by optical waveguide theory. For different sensing film thicknesses and interaction lengths, the sensor signal is investigated within the methane concentration range of 0-14.5% (v/v). It is shown that the sensor signal with the thickness of 5 \mu m and the interaction length of 3 mm strengthens linearly with the increasing concentration of methane, with a slope of 0.0186. The best detection limit of the sensor for methane is 2.2% (v/v) with a response time of 90 s. This sensor is suitable for the detection of methane concentration below the critical value of 5%.
© 2010 Chinese Optics Letters
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.1880) Instrumentation, measurement, and metrology : Detection
(130.6010) Integrated optics : Sensors
Citation
Jianchun Yang, Longjun Xu, and Weimin Chen, "An optical fiber methane gas sensing film sensor based on core diameter mismatch," Chin. Opt. Lett. 8, 482-484 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-5-482
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Enhancement of evanescent fluorescence from fiber-optic sensors by thin-film sol-gel coatings (JOSAA)
- Ultrahigh-sensitivity fiber-optic strain and temperature sensor (OL)
- Water-soluble porphyrin detection in a pure-silica photonic crystal fiber (OL)
- Long-period fiber grating sensor with a styrene-acrylonitrile nano-film incorporating cryptophane A for methane detection (OE)
- Optical fiber methane sensor based on SAN film containing cryptophane-E-(OEt)6 (COL)
Related Conference Papers
- A Low Cost Multiplexed 1.331 μm Spectroscopic Remote Methane Sensor System
- Monitoring of Molecular Transformations with Optical Microresonators
- Effect of Gap Region Medium on Acoustic Emission Wave by Single Pulse Discharge
- In line Multimode Quasi – Distributed Evanescent Field Sensor Array
- Birefringent Porous Glass Fiber-Optic Sensor as a Low-Cost End-of-Service-Life Indicator (ESLI) for Organic Vapor Respiratory Cartridges
« Previous Article | Next Article »
OSA is a member of 