Infrared
thermography is a technology developed in the mid 1950's by the
American Military. The technology uses a portion of the electromagnetic
spectrum that is not visible to the human eye. Every object that
has a temperature above absolute zero (the point at which the atoms
composing the material stop moving) emits thermal energy. This energy
has wave lengths longer than those visible to the naked eye. On
the electromagnetic spectrum thermal infrared radiation is right
between the visible light and microwave radiation.
Though the technology was created over half a century ago it is
considered state of the art. Much like computers the first infrared
cameras were bulky and incredibly expensive. As the technology progressed
and became more affordable it was found that infrared imaging had
many different applications. It is used in the auto industry, pharmaceutical
industry, the engineering industry, by law enforcement and by firefighters
just to name a few.
In our application of this technology we use an Infrared camera
with radiographic capacity. This gives us the ability to take a
thermal image of an object and be able to tell the temperature of
any said point on the image. Employing the technology in this waymakes
it a powerful diagnostic tool in building science and in preventative
maintenance. Not only can we tell that something is overheating,
we can say by how much it is overheating. This could very easily
make the difference between an emergency shut down or an note for
scheduled maintenance. Applied to building science this could be
the difference between ripping down a wall for a leak only to find
a cool draft, or noting a cool draft and sealing the problem. An
infrared camera and an experienced operator can find that mystery
leak, over heating wiring, various other structural mechanical and
electrical issues.