Gain
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Usage:
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Can be used to adjust the brightness of the
image.
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Definition:
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Sets the gain value for the image sensor.
This setting can be configured through calibration, which is the
recommended method. A higher gain value will increase the
brightness of the image, but the visual noise reduction performance
of the system is reduced. Before configuring gain settings, the
desired shutter speed should already be set and the gain should be
configured to optimize the shutter speed setting.
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Serial Cmd:
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<K541,shutter speed,gain>
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Default:
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20
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Options:
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0 to 33
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Focal Distance
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Definition:
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This setting provides a means for
configuring the focal distance of the imager. The input value is in
terms of inches and is divided by 100 internally. For example, 400
sets the imager to a focal distance of 4 inches. It is important to
note that the imager may not have an exact match for the focal
position requested. The imager has a range of steps that are
calibrated and mapped to focal positions. This input value is
matched to the closest focal position step that the system
supports. It is also important to keep in mind that the resolution
of the system is not linear. As the imager's focal distance setting
increases, the resolution decreases. This effect is offset somewhat
by the fact that the depth of field increases at greater focal
distances.
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Serial Cmd:
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<K525,focal
distance>
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Default:
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Standard Density = 400 (4")
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High Density = 400
(4")
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Ultra High Density = 300 (3")
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Options:
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200 (2") to 600 (6")
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Note: In the factory, the imager calibrates its focus
curve and matches the focus motor steps to various focal positions.
Therefore, each imager has a slightly different focus map of
stepper motor positions vs. focal positions. This allows the user
to enter a focal distance that causes the imager to select the
closest stepper motor position required to obtain the user-defined
setting. In this way, there is consistency between imagers for any
given focal distance input.
Note: To view a list of focal distances supported by
your imager, use the <K526> command.
