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Proceedings Paper

IR gas cloud imaging in oil and gas applications: immunity to false stimuli
Author(s): Edward Naranjo; Shankar Baliga; John Park; Philippe Bernascolle
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Paper Abstract

Fixed gas detection equipment for the petroleum industries is no ordinary equipment. It is designed for continued unattended surveillance in harsh environments. The equipment must be reliable and require limited field maintenance. An additional requirement is a high resistance to false alarms and interferences, which can potentially reduce the detector's efficacy and the level of protection provided. In recent years, several manufactures of IR imaging devices have launched commercial models that are applicable to a wide range of chemical species and suitable for industrial use. These cameras are rugged and sufficiently sensitive to detect low concentrations of combustible and toxic gases. Nonetheless, as users become acquainted with these imaging systems, questions of resilience to solar and flame radiation and other IR sources, interferences by fog or steam, have begun to emerge. These questions, in fact, reflect similar concerns as those raised with open path IR gas detectors when they first appeared in the market over 20 years ago. This paper examines an IR gas imager's performance when exposed to several false alarm sources. Gas detection sensitivity in the presence of false stimuli and response and recovery times under an uncontrolled outdoor environment were measured. The results show the specific model tested is reasonably immune to false alarms, while response times were unaffected by the presence of these sources.

Paper Details

Date Published: 10 May 2011
PDF: 10 pages
Proc. SPIE 8013, Thermosense: Thermal Infrared Applications XXXIII, 80130B (10 May 2011); doi: 10.1117/12.882566
Show Author Affiliations
Edward Naranjo, General Monitors (United States)
Shankar Baliga, General Monitors (United States)
John Park, General Monitors (United States)
Philippe Bernascolle, Bertin Technologies (France)

Published in SPIE Proceedings Vol. 8013:
Thermosense: Thermal Infrared Applications XXXIII
Morteza Safai; Jeff R. Brown, Editor(s)

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