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    Using a FLIR Gas Detection Cameras to Visualize CO2 Gas

    Using a FLIR Gas Detection Cameras to Visualize CO2 Gas

    A common concern when visualizing CO2 in particular is whether or not the OGI camera is detecting the gas or seeing water vapor.

    OGI cameras visualize gas by spectrally filtering for infrared absorption in a particular waveband. At 4.3 microns, water vapor doesn't absorb as much energy as CO2 absorbs. When we (or cows) exhale, for example, an OGI camera filtered for 4.3um would detect the CO2 we exhale much more than any water vapor.

    Learn more about how a filter on an infrared camera helps visualize CO2:

     

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