Dalsa Piranha 2 Series - Setting Gains

34 Piranha 2 User’s Manual
03-032-00493-14 Teledyne DALSA
3.13 Setting Gains
Optimizing gain in the analog domain allows you to achieve a better signal-to-noise ratio
(dynamic range) than you would achieve by trying to optimize the gain in the digital
domain.
To set the analog gain mode, use the command:
Syntax:
sg t f
Syntax Elements:
t
Tap selection. Allowable range is 1 to 4, or 0 for all taps.
f
Gain setting. A gain value of 0 sets the camera to its
nominal gain (0dB). The specified gain value range is
from –10 to 10dB.
Example:
sg 0 5.2
To set the digital gain, following a background subtraction, use the command:
Syntax:
ssg t i
Syntax Elements:
t
Tap selection. Allowable range is 1 to 4, or 0 for all taps.
i
Gain setting. The gain ranges are 0 to 511 (equal to a gain
from 1 to 1.999). Use this command in conjunction with
the ssb command.
Related Commands:
ssb
Example:
ssg 1 15
Calibrating Gains
Instead of setting the analog gain to a specific value, you can have the camera determine
the gain value by providing the camera with an average output level to use.
Note: This function requires a constant light input while it executes. This feature is
beneficial for achieving a common output level for multiple cameras in a system.
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