Ametek PHANTOM Miro C321, Руководство пользователя

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Vision Research, Inc. | Miro C321/C321J/N5/JBox 2.0 Camera Manual
‘ External Sync ’ instructs the camera to use one of the following options:
• Internal:
Camera uses its internal crystal oscillator to drive the frame rate.
• External: Camera uses externally supplied frame sync clock pulse to drive the
frame rate. This can be used to synchronize two cameras together via F-Sync.
• IRIG:
Camera uses an IRIG-B signal is supplied to drive the frame rate.
• Lock to Video: Frame rate is driven by the camera’s current video rate. Fps will
jump to the closest multiple of the current video rate (23.98, 24, 25, 29.97 or 30).
• Sync to Trigger:
Instructs the camera to adjust its frame clock, upon detection of
a trigger signal, to ensure all post trigger frames occur at the same moment in
time from trigger when repetitive tests are required.
FL ASH MEMORY
This displays the amount of free space and size (in Gigabytes)
of the internal flash.
RECORDING A CINE
To begin recording to the camera’s RAM click the red ‘ Capture ’ button.
The red ‘ Capture ’ button changes to ‘ Abort Recording ’ and the green ’ Trigger ’ button
is enabled when the camera is recording. The ‘
Abort Recording
’
button instructs the camera to stop recording, leaving the
camera’s RAM empty.
TRIGGERING THE CAMERA
Selecting the ‘
Trigger
’ button instructs the camera to immediately
stop recording when the ‘ Trigger Position ’ is set to zero. If a value greater than zero is
set, the camera will continue to record ‘
post-trigger
’ frames until the user-specified
value is met.
Using the camera’s external trigger signal provides a more accurate trigger
to the camera. This is also referred to as a ‘
hardware trigger
.’
When using External Sync it is important to limit the top frame rate by ~1%
to ensure the sync period is larger than 1/max_fram 0.1% or 200ns
(whichever is larger), to account for frequency tolerance and jitter.