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10 November 2018 Sensitivity limits on optical gas imaging due to air turbulence
Nathan Hagen
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Optical Engineering, Vol. 57, Issue 11, 114102 (November 2018). https://doi.org/10.1117/1.OE.57.11.114102
Abstract
Infrared cameras are widely used for the detection of fugitive gas leaks and for quantifying gas emissions. While the gas detection sensitivity in the presence of noise is now well understood, we show that wind-turbulence-induced thermal fluctuations place a fundamental lower limit on gas detection sensitivity. While for many gases the lower limit is too low to be important, we show that for some gases it places a real limitation on measurements when the background is a near-ground surface.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Nathan Hagen "Sensitivity limits on optical gas imaging due to air turbulence," Optical Engineering 57(11), 114102 (10 November 2018). https://doi.org/10.1117/1.OE.57.11.114102
Received: 13 June 2018; Accepted: 23 October 2018; Published: 10 November 2018
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Cited by 5 scholarly publications.
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KEYWORDS
Absorption
Turbulence
Cameras
Gases
Long wavelength infrared
Clouds
Infrared radiation
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