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can FLIR One measure temperature of things behind glass?

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This topic contains 3 replies, has 2 voices, and was last updated by Profile photo of Allison Allison 1 year, 3 months ago.

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  • #7427

    Profile photo of surendra
    surendra

    Participant

    Hi,

    can FLIR One measure temperature of things behind glass?. I have tried measuring temperature of things behind glass but i am unable to see things behind glass and there is reflection.If it possible how to do it?

    #7431

    Profile photo of Allison
    Allison

    Moderator

    Hi Surendra,
    Due to the part of the spectrum of infrared waves this sensor detects, it will see the infrared waves reflecting off the glass and not the objects behind the glass. The FLIR One is a long wave infrared camera, which is why it cannot measure temperatures of objects behind glass. Long-wave infrared waves cannot pass through glass like visible light and instead are reflected. This is a set limitation due to the nature of the camera’s sensor.

    Here is a link to a document that covers some general information about infrared if you want to learn more:
    https://lepton.flir.com/wp-content/uploads/2015/06/Introduction-to-Infrared-Thermography-Basics.pdf

    Thank you,
    Allison Torchia

    #7433

    Profile photo of surendra
    surendra

    Participant

    Does any camera available which can measure through glass?

    • This reply was modified 1 year, 3 months ago by Profile photo of surendra surendra.

    #7435

    Profile photo of Allison
    Allison

    Moderator

    Hi Surendra,

    Short-wave infrared cameras (SWIR) are able to see through glass, because they sense short-wave infrared waves which are able to pass through most glass like visible light and unlike long-wave infrared waves.

    FLIR makes several SWIR cameras, however currently none are meant to attach to smartphones like the FLIR One.
    Here are links to a couple of FLIR’s SWIR cameras there are more if you search through their products:
    https://www.flir.com/products/tau-swir/
    https://www.flir.com/products/a6260sc/

    FLIR also produces IR windows, which are made of a material long-wave infrared waves should be able to pass through and thus the FLIR One should be able to see through these windows: https://www.flir.com/products/ir-windows/

    Thank you,
    Allison Torchia

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