Glossary - FLIR ix Series User Manual

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Glossary

Term or expression
absorption (absorption factor)
atmosphere
autoadjust
autopalette
blackbody
blackbody radiator
calculated atmospheric transmission
cavity radiator
color temperature
conduction
continuous adjust
convection
dual isotherm
emissivity (emissivity factor)
emittance
environment
estimated atmospheric transmission
Publ. No. T559733_en-US Rev. a571 – ENGLISH (EN) – November 4, 2011
Explanation
The amount of radiation absorbed by an object relative to the
received radiation. A number between 0 and 1.
The gases between the object being measured and the camera,
normally air.
A function making a camera perform an internal image correc-
tion.
The IR image is shown with an uneven spread of colors, display-
ing 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 properties used to
calibrate IR cameras.
A transmission value computed from the temperature, 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 diffuse into a material.
A function that adjusts the image. The function works all the
time, continuously adjusting brightness and contrast according
to the image content.
Convection is a heat transfer mode where a fluid is brought into
motion, either by gravity or another force, thereby transferring
heat from one place to another.
An isotherm with two color bands, instead of one.
The amount of radiation coming from an object, compared to
that of a blackbody. A number between 0 and 1.
Amount of energy emitted from an object per unit of time and
2
area (W/m )
Objects and gases that emit radiation towards the object being
measured.
A transmission value, supplied by a user, replacing a calculated
one
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