This article explains thermal infrared imaging the infrared spectrum and the different infrared cameras used.
Thermal imaging frequency range.
All objects warmer than absolute zero 273 c 459 f emit infrared radiation in the mwir and lwir wavelengths 3µm 14µm in an amount.
Flir systems offers a wide range of thermal imaging cameras.
There is no real maximum range depending on the wavelength and what you are looking through.
The wavelength of infrared that thermal imaging cameras detect is 3 to 12 μm and differs significantly from that of night vision which operates in the visible light and near infrared ranges 0 4 to 1 0 μm.
Thermal imaging uses cameras that see heat instead of light.
Sometimes referred to as flir cameras they produce an image that portrays objects using their temperature instead of their visible properties.
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The flir e4 thermal imaging camera is an easy to use troubleshooting tools for building electrical and mechanical applications.
Find hidden problems take accurate temperature readings and confirm repairs were done correctly with the help of the 4 800 80 x 60 pixel infrared resolution and flir multi spectral dynamic imaging msx enhancements.
Definition and relationship to the electromagnetic spectrum.
What is thermal or infrared imaging.
So how does thermal imaging see heat.
Mid infrared will have a limit when looking through the atmosphere due to water absorption but the longer waves over 8 microns and the 3 5 micron ran.
This range of wavelengths corresponds to a frequency range of approximately 430 thz down to 300 ghz below infrared is the microwave portion of the electromagnetic spectrum.
Instead of the 400 700 nm nanometer range of visible light thermographic cameras are sensitive to wavelengths from about 1 000 nm 1 μm to about 14 000 nm 14 μm.
Thermal technology has advanced far enough that a good quality thermal imaging camera is small enough to fit in our pocket and attached to your cellphone or tablet.
