A broadband multisensor approach to gas monitoring

Leis, John and Buttsworth, David and Martin, Philip (2011) A broadband multisensor approach to gas monitoring. In: 6th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, 5-7 Dec 2011, Canberra, Australia.

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Abstract

This paper proposes and subsequently investigates a novel multi-source approach to broadband infrared gas detection based on light emitting diodes (LEDs). The intended application is carbon dioxide and methane gas sensing where low-cost, rugged, self-calibrating and portable instruments are required, however the approach described is sufficiently general to be applied to other gases and applications, such as fire detection. The novelty of the approach is twofold. First, we employ nonspecific sources of infrared irradiation, rather than sensors which are tailored to a specific species. Second, and more importantly, we propose the use of an array of infrared sources coupled to a single detector in order to obtain enhanced precision and lower detection limits than are possible with single source-detector combinations.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Blind peer review available if required.
Depositing User: Assoc Prof John Leis
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 22 Jun 2012 02:57
Last Modified: 03 Jul 2013 01:13
Uncontrolled Keywords: gas detection; infrared sensors; LEDs; radiation
Fields of Research (FOR2008): 09 Engineering > 0906 Electrical and Electronic Engineering > 090606 Photonics and Electro-Optical Engineering (excl. Communications)
09 Engineering > 0999 Other Engineering > 099902 Engineering Instrumentation
09 Engineering > 0906 Electrical and Electronic Engineering > 090605 Photodetectors, Optical Sensors and Solar Cells
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
URI: http://eprints.usq.edu.au/id/eprint/21428

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