Dalsa Falcon 4M30, Руководство пользователя

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Falcon 4M Camera Manual
03-032-20044-01 DALSA
26
3.3.3 Setting the Camera Link Strobe Frequency
Purpose: Sets the camera link strobe frequency. Refer to the How to
Configure Camera Output section, above, for a description of how
camera link strobe frequency relate to the camera’s Camera Link
mode.
Syntax:
sot m
Syntax Elements:
m
If using Camera Link mode 2 or 3:
130
: 65 MHz camera link strobe with a total throughput of 130
MHz
160
: 80 MHz camera link strobe with a total throughput of 160
MHz
If using Camera Link 15 or 16 (4M60 only):
260 : 65 MHz camera link strobe with a total throughput of 260
MHz
320 : 80 MHz camera link strobe with a total throughput of 320
MHz
Notes:
•
To retrieve the current throughput, use the command
gcp
or
get sot.
Example:
sot 260
3.4 Setting Exposure Mode, Frame Rate and
Exposure Time
Overview
You have a choice of operating in one of three exposure modes. To select how you want
the camera’s frame rate to be generated:
1. You must first set the camera’s exposure mode using the
sem
command.
2. Next, if operating in exposure mode 2 use the command
ssf
to set the frame rate and
the
set
command to set the exposure time if in exposure mode 2 or 6.
3.4.1 Non-concurrent vs. concurrent modes of
operation
One of the main benefits of global shutter CMOS devices is that you have the choice to
operate the camera where integration and readout are concurrent or where integration
and readout are not concurrent. Integration refers to the time period that the camera can
be exposed to light and is often referred to as exposure time. Readout refers to the time it
takes to read out every pixel from the camera. For a 60 fps camera, such as the Falcon
4M60, the readout period is around 16.6 ms.
Concurrent mode is when the camera is integrating the current frame (Frame 1) and at the
same time is reading out the prior frame (Frame 0). By performing integration and