Operating the Integrated Engine

NOTE: The Axsun Integrated Engine will operate (in Force Trigger Mode) even if an Image_sync trigger connection is not yet established or before fiber optic connections are made.

You can follow the steps on this page to verify correct hardware/software installation and learn about the basic operational modes of your Axsun Integrated Engine by streaming unsynchronized image data consisting of only background noise, then return to the previous Making Connections section later when connecting your Image_sync trigger and OCT interferometer optical fibers.

NOTE: If errors are encountered during the execution of the steps on this page, see the DAQ Troubleshooting article for recommendations. Contact Axsun if you are unable to overcome your error using the instructions in this knowledge base.

Launch GUI Tools & Confirm Connectivity

  • To operate the Integrated Engine you will be using the Hardware Control Tool and the Image Capture Tool GUIs which were installed in a previous section.

  • Insure that the device hardware is connected to the host PC and powered-on as described in the previous Making Connections section.

  • Launch the Hardware Control Tool (AxsunHardwareControlTool.exe) and confirm that both Laser Engine and DAQ boards are detected as shown in the top left corner of the Hardware Control Tool main window:

Ethernet Interface
PCIe Interface

When connected successfully, the Hardware Control Tool will indicate a connected DAQ board with interface listed as "Ethernet" and a connected Laser Engine (or Light Source) listed with interface listed as "via DAQ". This is because the Laser Engine is communicating to the host PC over a RS-232 link between the two boards and then through the DAQ's Ethernet connection.

Boards successfully connected via Ethernet.

When connected successfully, the Hardware Control Tool will indicate a connected DAQ board and a connected Laser Engine (or Light Source) with both interfaces listed as "USB".

Boards successfully connected via USB.
  • Launch the Image Capture Tool (AxsunImageCaptureTool.exe) and make the appropriate selection when prompted for either an Ethernet or PCIe capture session:

  • The Image Capture Tool window will show a blank image and the selected session type will be indicated at the top of the window:

  • If installation errors were encountered when starting the session, the Image Capture Tool will support review of previously saved data files only. See the DAQ Troubleshooting article to overcome the errors and then try again.

Live Imaging

Enable Laser Emission

  • Press the LASER: ON button on the Hardware Control Tool. When the laser is emitting,

    • an indicator next to the LASER: buttons will turn bright green:

    • an infrared phosphor card will show light emitted from the laser output fiber:

    • and a LED on the long edge of the Laser Engine board will illuminate:

Enable the DAQ Live Imaging mode

Ethernet Interface
PCIe Interface
  • Press the EQAQ: LIVE button on the Hardware Control Tool:

  • Press the PCIeDAQ: LIVE button on the Image Capture Tool's PCIe tab:

  • The Image Capture Tool will immediately begin to update with live images and an indicator in the lower left region of the window will turn bright green to indicate Live Imaging. If you have not yet connected an Image_sync trigger, the Width (A-scans) indicator will show 256 (the default in Force Trigger mode) and an indicator in the lower left region of the window will turn bright red to indicate that Force Trigger mode is active:

Live Imaging of background noise in Force Trigger mode.
  • If you have connected a valid Image_sync trigger, the Width (A-Scans) will correspond to the instantaneous period of incoming Image_sync trigger pulses and the Returned Image # will be counting up monotonically:

Live Imaging of background noise with a valid Image_sync trigger connected.

NOTE: Change the frequency of your Image_sync trigger and observe how the Width of the captured image changes automatically in response.

Idle

Disable the DAQ Live Imaging mode

Ethernet Interface
PCIe Interface
  • Press the EDAQ: OFF button on the Hardware Control Tool.

  • Press the PCIeDAQ: OFF button on the Image Capture Tool's PCIe tab.

Disable Laser Emission

  • Press the LASER: OFF button on the Hardware Control Tool.

Powering Off

The Axsun Integrated Engine can be turned off by unplugging the power supply cable on either the DC or AC side of the AC/DC adapter.

When connected using the PCIe interface, we recommend shutting down and turning off the host PC prior to powering off the Axsun DAQ board, as PCIe devices are not "plug-and-play" and the Windows OS does not expect the DAQ device to be disabled abruptly.

Next Steps

Congratulations! You have installed your Axsun Integrated Engine with its related control and capture software and successfully streamed images to your host PC in Live Imaging mode.

See the following pages for recommended further reading: