Online — Researchers have developed an infrared imaging system that could one day offer low-cost, real-time detection of methane gas leaks in pipelines and at oil and gas facilities.
Leaks of methane, the primary component of natural gas, can be costly and dangerous while also contributing to climate change as a greenhouse gas.
“Despite methane gas being invisible to the eye, we have developed a method of color-coding this gas information and overlaying it onto a conventional camera image,” said Dr. Graham M. Gibson from the University of Glasgow, Scotland, who led the technical work.
“This allows the user operating the camera to look around, identify things and see an overlay of where the gas is present.”
Gibson, along with the rest of the research team, worked with M Squared to develop the real-time infrared imaging system.
In The Optical Society journal Optics Express, the researchers show that the system can acquire videos of methane gas leaking from a tube at about 0.2 liters per minute.
The technology could also be expanded to other wavelengths or ranges of wavelengths, allowing the detection of a host of gases and chemicals.
Read the whole story at: https://phys.org/news/2017-02-low-cost-imaging-natural-gas-leaks.html#jCp
More information: G.M. Gibson, B. Sun, M.P. Edgar, D.B. Phillips, N. Hempler, G.T. Maker, G.P. Malcolm, M.J. Padgett, “Real-time imaging of methane gas leaks using a single-pixel camera,” Opt. Express, Vol. 25, Issue 4, 2998-3005 (2017). DOI: 10.1364/OE.25.002998 , https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-4-2998
Journal reference: Optics Express