Intro To Infrared Technology - FLIR Navigator II Operator's Manual

INTRO TO INFRARED TECHNOLOGY

e Navigator II detects differences in heat and displays them as black and
white TV video. It may look like a black and white version of what your eyes
see, but it's not.
understand and get comfortable with that difference, the more you will enjoy
this incredible technology.
Why things look the way they do
e Navigator II's thermal imager makes video images from differences in
heat, not from the light you see every day. It senses the minute differences in
heat between objects, and (in white hot mode) displays the warmer objects as
white (or lighter shades of gray), and colder objects as black (or darker shades
of gray).
Everything you encounter in your day-to-day existence gives off heat – even
ice! Chances are that the hotter something is, the easier it will be to see.
While most things give off their own heat, some things actually reflect the
heat given off by other things. Water and polished metal, for example, aren't
as hot as they appear when they reflect sunlight, or the heat generated by
other vessels.
What's more, some things that are the same temperature (or close to it) look
different because of their different surface textures.
IR energy doesn't go through glass or water efficiently, so Navigator II won't let
you see well through glass.
ermal imagers are passive – they only receive incoming energy.
"see through" anything. While you might think you are seeing through a
vessel's hull to see the bulkheads and heat from the engine, you're not.
elements are actually changing the temperature of the hull itself, allowing you
to see the bulkheads and the hot engine room.
As you experiment with your Navigator II, you will begin to see a world of
heat. Consider every object you view in terms of how it will look "thermally",
as opposed to how it looks in the visible spectrum.
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e Navigator II sees heat, not light.
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