Dalsa Piranha XL PX-HM-16K12B-00-R, Руководство пользователя

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The Piranha XL Camera
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Start the second instance of CamExpert.
1. CamExpert will again search for any installed Sapera devices.
2. In the Devices list area on the left side, the connected camera will be shown.
3. Select the camera device by clicking on the name.
4. The XML is automatically read from the camera and CamExpert will use it to set up the panes detailing
the configurable functionality of the camera.
The two CamExpert instances can now be used to set up the camera and frame grabber for
capturing the first images. See Appendix 0 for a detailed description of the camera features
available in each pane.
Establishing Data Integrity
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Use the camera’s internal Triggering. This will allow initial imaging with a static object and
no encoder input will be required.
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Enable the camera to output a test pattern.
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Use a frame grabber CamExpert instance to capture, display, and analyze the test pattern
image to verify the integrity of the connection. If the test pattern is not correct, check the
cable connections and the frame grabber setup.
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Disable the test pattern output.
Review of Camera Performance and Features
This section is intended to be a progressive introduction to the features of the Piranha XL camera
and how to use them effectively.
Synchronizing to Object Motion
The Piranha XL camera supports two trigger modes: internal and external. Internal was used in the
previous sections where synchronization to image motion was not required.
External Trigger Mode
See the section Digital I / O Control Feature Descriptions in Appendix A for GenICam features
associated with this section and how to use them.
Relevant Feature: Trigger Source, Trigger Selector, Trigger Mode
The Piranha XL sensor uses a multi-line CMOS TDI technology where the image is integrated over
multiple adjacent lines as it moves over the sensor. All the lines are then summed to achieve a
highly responsive output. To achieve correct summing, it is vital that the image motion across the
sensor is synchronized to the integration timing of the sensor. The user must provide a
synchronizing external trigger pulse derived from an encoder that generates one pulse for one
object pixel of motion. The encoder signal must be connected to the encoder input of the frame
grabber. See the XTIUM frame grabber user manual (here) for details on how to make this
connection.
CamExpert can be used to configure the frame grabber for routing the encoder signal from the
frame grabber input to the trigger input of the camera via the Camera Link HS data cable.
The continuous stream of encoder trigger pulses synchronized to the object motion establishes the
line rate. The faster the object’s motion, the higher the line rate. The Piranha XL camera can
accommodate up to its specified maximum frequency. If the maximum frequency is exceeded, the