344 CONTENTS
22.5.3.2 Snapshot mode
To calculate the maximum frames per second (FPS
max
) in snapshot mode you will need following formula:
2 ImageHeight + 10
ReadOutTime = InternalLineLength
*
----------------
*
(-----------------)
InternalADCClock 1000
1000
FPS_max = ----------------------------
ReadOutTime + ExposureTime
22.5.3.3 line scan mode
The sensor offers also a usage as a line scan sensor. One (gray scale sensor) or two lines (in terms of color sensor)
can be selected to be read out of the full line height of 1600 lines. This or these lines are grouped to a pseudo frame
of selectable height in the internal buffer of the camera.
The camera then outputs these frames which contain multiples of the same scan line(s) without gaps or interrup-
tions.
To operate in line scan mode, use the following properties:
• In "Setting -> Base -> Camera -> GenICam -> Device Control", please change the
Device Scan Type to line scan.
• In "Setting -> Base -> Camera -> GenICam -> Image Format Control", please
set Width and Height. Height specifies how often the same line(s) will be used to reach the height of the
image.
Use Offset X to shift horizontally the starting point of the exposed line.
Use and Offset Y to shift the scan line vertically.
Note
The sensor will not get faster by windowing in x direction.
• Finally, in "Setting -> Base -> Camera -> !GenICam -> Acquisition Control",
please adapt the Exposure Time.
The exposure time as to be low and max. approx. 60 us in order to achieve the max. line scan rate of 12.6
kHz.
You may use longer exposure times at the expense of scanning frequency.
Note
Using more than one line e.g. 5, is like having an area scan with ImageHeight = 5. In line scan mode, the
max. ImageHeight is ≤ 16.
You can use either Continuous or a trigger mode as Acquisition Mode in "Setting -> Base
-> Camera -> GenICam -> Acquisition Control". However, if an external (line) trigger will
have to be used, it is absolutely required that the external trigger is always present. During a trigger interrup-
tion, controlling or communication to the camera is not possible!
MATRIX VISION GmbH
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