Date
1/6/12
© 2011-2012, FLIR Systems AB. All rights reserved worldwide. Publ. No. T 559 775, Rev. B
14 (20)
2.2.4.2
Measurement registers
The camera has a list of measurement ranges (called gain modes) which you can inspect
through these registers. You can also make the camera switch to one of them using the
SensorGainMode register.
Temperature (in Kelvin) = B / log(R / (S - O) + F), where S is the 14-bit digital signal
value. log(x) is the base-e logarithm of the x parameter.
Name
Type
Access Comment
SensorGainMode
Enum RW
Dynamic range control mode.
1=Low gain mode (lower sensitivity), high
temperatures.
2=High gain mode for lower temperatures (<
100 deg Celsius)
R
Integer RW
Gets and sets the Planck R constant. This
value is used when converting from signal
value to temperature.
B
Float
RW
Gets or sets Planck B constant. This value is
used when converting from signal value to
temperature. Value range 1300 - 1600.
F
Float
RW
Gets or sets Planck F constant. This value is
used when converting from signal value to
temperature. Value range 0.5 - 2.
O
Float
RW
Gets and sets Planck O (offset) constant. This
value is used when converting from signal
value to temperature.
Spot
Float
RO
Center spot meter in degrees Celsius.
LensNumber
Enum RW
Gets or sets the active lens (which affects
which correction terms are applied)
0=Lens type 0 (default)
1=Lens type 1
LensSelector
Enum RW
Selected lens (0 - 1)
FNumber
Float
RW
Selected lens F number (focal ratio), 0.5 - 8.0
Transmission
Float
RW
Selected lens transmission factor, 0.5 - 1.0
2.2.4.3
Object Parameter registers
Registers associated with infrared measurement conditions.