CV-L105
- 16 -
Fig. 18. Shutter window
7.1.1. Clock Select
With
Clock Select
two speeds can be selected,
15 MHz
or
30 MHz
.
The 15 MHz operation will limit the maximum line rate (scan rate) to 7 172 Hz. It is
recommended when a cable length of more than 20 metres is used or in applications where high
RFI fields may be experienced.
7.1.2. Binning
With
Binning
set to
2048
the full resolution of the CCD sensors is 2048 pixels. If a higher
sensitivity is required, and a reduced resolution can be accepted, the binning function can be
selected by switching to
1024
. As the readout section of the CCD sensor output, 2 adjacent
pixels are added and read out as one single pixel.
The STROBE frequency is divided by 2 when the camera is operated in 1024 binning mode.
7.1.3. Trigger Mode
With
Trigger Mode
to
Internal
, the camera is configured to generate the trigger pulse
internally. The
Scan time
and
Shutter Time
need to be configured for proper operation in this
mode. In
External
mode, the camera is configured to accept an EXT TRIG pulse.
See also 6.2. Trigger modes.
7.1.4. Shutter/Scan Mode
With
Internal
trigger and
Shutter/Scan Mode
in
Shutter
mode, the camera will be set to expose
for a pre-defined period of time set by
Shutter Time
. The scan interval (or scan rate) is set by
Scan Time
. In
Scan
mode, the exposure time is the same as the
Scan time
.
With
External
trigger and
Shutter/Scan Mode
in
Shutter
mode, the exposure is equal to the
trigger low period. In
Scan
mode the exposure to the time interval between the external trigger
pulses.
See also 6.2. Trigger modes.
7.1.5. Shutter/Scan Time
The
Shutter/Scan Time
controls the shutter time and scan time for internal trigger mode.
The range of setting for the
Shutter Time
is 1 µs to (
Scan Time
– 150 µs).
The range of
Scan Time
is 151 µs to 32.35 ms.
Example, if
Scan Time
is set to 300 µs the range of setting is up is 300 µs – 150 µs = 150 µs.
The
Shutter/Scan Time
control has no function in external trigger mode.