FLIR ThermaCam P25 User Manual page 137

Term or expression
object signal
palette
pixel
radiance
radiant power
radiation
radiator
range
reference temperature
reflection
relative humidity
saturation color
span
spectral (radiant) emittance
temperature range
temperature scale
thermogram
Publ. No. 1557978 Rev. a155 – ENGLISH (EN) – February 6, 2006
Explanation
A non-calibrated value related to the amount of radiation re-
ceived by the camera from the object.
The set of colors used to display an IR image.
Stands for picture element. One single spot in an image.
Amount of energy emitted from an object per unit of time, area
2
and angle (W/m /sr)
Amount of energy emitted from an object per unit of time (W)
The process by which electromagnetic energy, is emitted by an
object or a gas.
A piece of IR radiating equipment.
The current overall temperature measurement limitation of an
IR camera. Cameras can have several ranges. Expressed as
two blackbody temperatures that limit the current calibration.
A temperature which the ordinary measured values can be
compared with.
The amount of radiation reflected by an object relative to the
received radiation. A number between 0 and 1.
Percentage of water in the air, relative to what is physically
possible. Air temperature dependent.
The areas that contain temperatures outside the present lev-
el/span settings are colored with the saturation colors. The sat-
uration colors contain an 'overflow' color and an 'underflow'
color.
There is also a third red saturation color that marks everything
saturated by the detector indicating that the range should
probably be changed.
The interval of the temperature scale, usually expressed as a
signal value.
Amount of energy emitted from an object per unit of time, area
2
and wavelength (W/m /μm)
The current overall temperature measurement limitation of an
IR camera. Cameras can have several ranges. Expressed as
two blackbody temperatures that limit the current calibration.
The way in which an IR image currently is displayed. Expressed
as two temperature values limiting the colors.
infrared image
17 – Glossary
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