Thermal imagers detect heat patterns in the infrared wavelength spectrum. Thermal imagers rely on the emission of thermal or infrared energy by all objects above 0 Kelvin. They detect energy emissions (heat) in the infrared wavelength spectrum of 1 micron to 100 microns. Thermography, thermology, thermal wave imaging, thermovision and thermal infrared night vision use thermal imagers, some of the actual devices appear like slightly oversized video cameras, while others...
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Q & A on Thermal Imagers
We asked our users for their input on Thermal Imagers. Here are the results of 909 users familiar with Thermal Imagers.Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice
Who Took Our Poll?Top
Flir. They are designing imagers for the military...lots of R&D dollars going there.
Applications and UseTop
Some cameras on the market have an accuracy level of + - 5 deg C with no emissivity correction - this can lead to a camera showing a piece of equipment to be within spec for temperature when in fact it could be up to 50 deg C out. Emissivity is the single biggest factor in getting a correct temperature measurement
Many... 1. Trying to locate people under the surface of a lake 2. trying to see if an oil cracking furnace was reaching its construction temperature limits with an uncalibrated thermal imager through an impure flame (there are solid impurities in the flame) 3. monitoring small targets without proper tele lens 4. monitoring very low emissivity targets 5. looking for thermal bridges on a building with low indoor outdoor temperature difference.
Yes. Some thermographers get lax in assuming what they "see" is correct and true- Only once they realize they made a f****p then they call me in to assist- I normally then also use the opportunity to train them up as to what and why they made the incorrect diagnosis (I also did it in my "beginning days " and those are "lessons " that you never "forget.").
For Bld & infrastructure : 1. They must be operable in the disaster condition. 2. They must be movable. 3. Easy to operate. 4. Easy maintenance. 5. Do not have high cost to operate. 6. Can be movable by regular plane baggage. 7. Weight maximum 10 kg
They should always buy cameras with minimum 30Hz frame rate, with moveable spot meter, moveable and resizeable box/circle feature, motorized focus, digital camera with flash with .jpeg radiometric imaging, capable to making infrared video, fully radiometric with minimum 9-10 Hz, removable battery and full version of thermal analysis software, with operating condition at 50 Deg C and 90 humidity. Service center or set-up should be certified for backup service. Seller / manufacturer should have certified training facility. First time buyer should always club certified training program with their purchase.