Matrix Vision mvBlueFOX, Техническое руководство, Страница: 230 / 255

20.5 mvBlueFOX-[Model]224 (1.9 Mpix [1600 x 1200]) 223
Mode Description
Continuous Free running, no external trigger signal needed.
OnDemand Image acquisition triggered by command (software trigger).
OnLowLevel As long as trigger signal is Low camera acquires images with own timing.
OnHighLevel As long as trigger signal is High camera acquires images with own timing.
OnFallingEdge Each falling edge of trigger signal acquires one image.
OnRisingEdge Each rising edge of trigger signal acquires one image.
OnHighExpose Each rising edge of trigger signal acquires one image, exposure time corresponds to pulse
width.
See also
For detailed description about the trigger modes (
https://www.matrix-vision/manuals/
[mvI
←
-
MPACT Acquire API])
• C: TCameraTriggerMode
• C++ : mvIMPACT::acquire::TCameraTriggerMode
20.5.2.2 Exposure aka Integration
After an active trigger, the exposure phase starts with a maximum jitter of t
trig
. If flash illumination is enabled
in software the flash output will be activated exactly while the sensor chip is integrating light. Exposure time is
adjustable by software in increments of t
readline
.
20.5.2.3 Readout
When exposure is finished, the image is transferred to hidden storage cells on the CCD. Image data is then shifted
out line-by-line and transferred to memory. Shifting out non active lines takes tvshift, while shifting out active lines
will consume t
readline
. The number of active pixels per line will not have any impact on readout speed.
20.5.3 CCD Timing
20.5.3.1 Timings
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