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CONFIGURATION TOOL
1
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Exposure
The exposure determines the amount of time light is allowed to collect on the
CCD array between scans. A faster response is generally desired, and it is
achieved by shorter exposure times. The exposure sets the time of the clocking
period. The last 1.59ms of each period is for the CCD pixels to be clocked out
of the array.
You can think of the exposure as:
Exposure = Update Rate
Exposure Sources
The exposure source defines the source of the exposure input. The following
exposure sources are supported:
INTB-30A
This mode is identical to the DAC-003 camera. The INTB-30
sets the exposure value by providing an analog value to the
DAC-004. Manual or auto-exposure with limiting is selected by
the documented INTB-30 settings. If this mode is selected and
there is no INTB-30 connected the exposure will perform like
Automatic exposure with a 45ms limit.
Automatic
This setting is typically used when an INTB-30 is not connected
to tell the camera to apply the auto-exposure algorithm. If an
INTB-30 is present, it can override the exposure setting. The
edit window below this control provides the upper limit for the
auto-exposure. To provide full range to the auto-exposure
control set the limit to 45ms. Enter a shorter duration to limit
the exposure allowed.
Fixed Value
The exposure is set to the fixed value specified in the edit
control. The INTB-30 (if attached) has no effect on exposure.
FifeNet
+/-32k
The exposure value is provided via FifeNet. A FifeNet value of
32767 sets the exposure to 45ms (slowest) The value -32767
sets the exposure time to 1.585ms (fastest). An INTB-30 (if
attached) will have no influence on exposure. To determine
the FifeNet value for a desired exposure time use the following
equation.
FifeNet Value = Desired Exposure (ms) * 1509.48 – 35159.52
FifeNet
ms x 1000
The exposure value is provided via FifeNet. An INTB-30 (if
attached) will have no influence on exposure when this option
is specified.
This mode allows the exposure to be set from an external
source in actual milliseconds. For example, the exposure time
of 4.85ms corresponds to decimal 4850 (12F2 hex).
06-04-04
DAC-004 DIODE LINE CAMERA
Figure Sheet 1-873-A