FLIR TermaCAM E45, User Manual

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15 Glossary
Explanation Term or expression
The amount of radiation absorbed by an object
relative to the received radiation. A number be-
tween 0 and 1. absorption (absorption factor)
Objects and gases that emit radiation towards the
object being measured. ambient
The gases between the object being measured
and the camera, normally air. atmosphere
A function making a camera perform an internal
image correction. autoadjust
The IR image is shown with an uneven spread of
colors, displaying cold objects as well as hot ones
at the same time. autopalette
Totally non-reflective object. All its radiation is due
to its own temperature. blackbody
An IR radiating equipment with blackbody proper-
ties used to calibrate IR cameras. blackbody radiator
A transmission value computed from the tempera-
ture, the relative humidity of air and the distance
to the object. calculated atmospheric transmission
A bottle shaped radiator with an absorbing inside,
viewed through the bottleneck. cavity radiator
The temperature for which the color of a blackbody
matches a specific color. color temperature
The process that makes heat spread into a materi-
al. conduction
A function that adjusts the image. The function
works all the time, continuously adjusting bright-
ness and contrast according to the image content. continuous adjust
The process that makes hot air or liquid rise. convection
A value which is the result of a subtraction between
two temperature values. difference temperature
An isotherm with two color bands, instead of one. dual isotherm
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Publ. No. 1558439 Rev. a156 – ENGLISH (EN) – February 28, 2006
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