Dalsa Piranha HS Series, Getting Started Manual

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Piranhs HS-xx Detailed Getting Started Guide 7
DALSA Corp. 03-32-10147-01
the throughput is too low for internally generated line/frame rate. The
warning can be ignored.
8. Execute the following commands to ensure that the camera is configured as
expected.
Table 3: Camera Configuration Commands (Area Mode)
Description Command Camera Response
Part 1. Configure the Sensor Readout
Set the vertical binning
factor to 1
sbv 1
OK> or a warning message
depending on internal frame
rate
Set the horizontal binning
factor to 1
sbh 1
OK> or a warning message
depending on CLM and
throughput
Set the number of stages to 96
stg 96
OK> or a warning message
depending on internal frame
rate
Part 2: Configure the Video Chain
Set the analog offset.
Typically, this should be 3x
the random noise. 100 DN 12
bit is a good value and will
work.
sao 0 100
OK>
Set the A/D offset or digital
offset subtract value to 0 for
all taps
sdo 0 0
OK>
Set the optical background
subtract value to zero for all
taps
ssb 0 0
OK>
Set the Digital output gain or
system gain to unity for all
taps
ssg 0 4096
OK>
Select a ramp input into the
video chain
svm 1
OK>
Part 3: Configure the Exposure Mode and User Controls
Select the exposure mode.
Exposure mode 7 operates
using the maximum exposure
time.
sem 7
OK>
Select internal frame rate.
17Hz gives approximately a
20:1 smear ratio and is a good
starting point (if operating
the 4k@sot 160 or 8k@sot
320). Generally a 20:1 or 10:1
smear ratio is sufficient for
focus. (max
line rate in TDI
mode/1000 to 2000).
ssf 17
OK>
Select Internal Forward
direction.
scd 0
OK>
9. Enter
svm 1
to observe the camera’s test pattern. Grab an image with your
framegrabber. Ensure that you are viewing your entire image. The test
pattern should look like the one below.
Note:
The following diagrams show
In this procedure, binning is set to
1 (no binning) for best camera
resolution. Higher binning factors
are sometimes used for extremely
low light conditions or to achieve
better MTF since the pixel size is
effectively increased by the
binning factor. Refer to the
camera’s user’s manual for more
information on binning.
Smear is expected with lighting
that is not strobed. The effects of
smear can be reduced by using a
long integration time.