Users Manual Area Scan Cameras SVSGigE
Page 65
Users Manual –evo1050, evo2050, evo2150, evo4050, evo4070, evo8050 and evo12040
© SVS-VISTEK GmbH
15
Appendix B – Basic timing for different operation modes
15.1
Free running/ Fixed frequency
A frame is readout automatically. There is no need to trigger
the camera in order to get data. The enclosed software allows
the user to set exposure time in µSec. The time set stays res-
ident after power off if the configuration is saved to camera if
stored before.
15.2
External Trigger and Pulsewidth of Trigger
In this mode the camera is waiting for an external
trigger which starts integration and read out.
Exposure time can be varied using the length of the
Trigger pulse (I. E. between the high going edge and
the low going edge). The time settings in the control
software are not activated. This mode is useful in applications where the light level of
the sceen changes during operation and the framegrabber can provide such a signal.
Change of exposure time is possible from one frame to the next.
15.3
External and Software trigger and internal exposure time setting
The framerate is determined by the number of Trigger pulses per time unit. With each
positive transition (going high) the camera will readout a frame. Exposuretime is set
in the same way as in the free running mode. Exposure time can be changed online
during operation. The time set stays resident after power off, if the configuration is
saved to the camera.
Data
Exposure
time
Trigger
Data
Exposure
time
Data
Exposure
time
Trigger