Pco Edge 3.1, Руководство пользователя

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6.3 GLOBAL RESET
All pixels are globally reset and the exposure starts for all rows at the
same time. The exposure stops row by row; therefore the duration of
the exposure is not the same for all pixels. The rolling readout
improves the image quality, but due to the difference in exposure
time, a flash illumination is recommended. The readout (exposure
stop) is done from the outside to the center.
General Timing Diagram
The exposure time of all rows starts simultaneously. The exposure
time of the first row stops after the predefined time, the following
rows are read out from the outside to the center row by row.
Note that this leads to a different duration of exposure time for each
row. Therefore it is recommended to use a flash illumination at the
beginning of the exposure start of all lines.
Timing
The exposure and delay time can be adjusted in steps of one line
time (see
1.2 ).
Camera (Global Reset) Exposure time Delay time
pco.edge 3.1 USB 3.0
30 µs – 2 s
0 µs … 1 s
pco.edge 4.2 LT USB 3.0
pco.edge 4.2
USB 3.0
pco.edge 5.5 USB 3.0
pco.edge 5.5
Camera Link
10 µs – 2 s
pco.edge 5.5
Camera Link HS
NOTE
Global Reset is
not
available for pco.edge
4.2 Camera Link (HS)
interface.