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15
Glossary
Term or expression
absorption (absorption factor)
ambient
atmosphere
autoadjust
autopalette
blackbody
blackbody radiator
calculated atmospheric transmission
cavity radiator
color temperature
conduction
continuous adjust
convection
difference temperature
dual isotherm
Publ. No. 1558146 Rev. a156 – ENGLISH (EN) – February 28, 2006
Explanation
The amount of radiation absorbed by an object
relative to the received radiation. A number be-
tween 0 and 1.
Objects and gases that emit radiation towards the
object being measured.
The gases between the object being measured
and the camera, normally air.
A function making a camera perform an internal
image correction.
The IR image is shown with an uneven spread of
colors, displaying cold objects as well as hot ones
at the same time.
Totally non-reflective object. All its radiation is due
to its own temperature.
An IR radiating equipment with blackbody proper-
ties used to calibrate IR cameras.
A transmission value computed from the tempera-
ture, the relative humidity of air and the distance
to the object.
A bottle shaped radiator with an absorbing inside,
viewed through the bottleneck.
The temperature for which the color of a blackbody
matches a specific color.
The process that makes heat spread into a materi-
al.
A function that adjusts the image. The function
works all the time, continuously adjusting bright-
ness and contrast according to the image content.
The process that makes hot air or liquid rise.
A value which is the result of a subtraction between
two temperature values.
An isotherm with two color bands, instead of one.
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