SonixDAQ Quick Test

The section will help you to quickly test your DAQ in order to collect synchronized data.

Preparing the Sonix System

 * Run the Exam software on the Sonix system and make sure you are in standard B mode imaging and research mode is enabled.
 * On the left mouse-over menu adjust the following parameters:
 * Write DAQ -> 1 : This will force the Sonix Exam to write the parameter for the DAQ.
 * Output Sync ->1 : This will activate the output synchronization signal on the Sonix's BNC connector.
 * Open Connector ->3 : This will send the echo signal from individual channels to the DAQ probe connector (i.e. the last connector). Note that the signal will be the same for both the probe connector and DAQ probe connector.
 * Focus Count -> 1: This will make sure only one transmit is use for each scan line/channel acquisition.

 

Testing the BNC output
Connect the output of the Sonix's BNC connector to an oscilloscope and make sure the synchronization signal is working properly. The output has to have 5 volt amplitude and 50 ns duty cycle. The frequency of the synchronization pulse is determined by the Sonix system. In case of using Line Trigger (Output Sync ->1), the frequency should be around 10kHz and in case of using Frame Trigger (Output Sync ->2), the frequency should be around 100Hz. Once you confirmed the sync signal disconnect it from the oscilloscope and connect it to the DAQ.

 

Preparing the SonixDAQ

 * Make sure your DAQ is properly connected and the power is on (please see the DAQ hardware Section for this).
 * Run the DAQ software and press "Create Sequence ..." to initialize the DAQ (please see the DAQ software Section for this).
 * Once DAQ is initialized and the "Sequencer Window" showed up program the DAQ
 * Select Load From File
 * Select all the channels
 * Set the Start Configuration to external
 * Set the DDR2 Size to be 8MB (instead of 16GB)
 * Press the Start Sequencing. If the test works fine the buffer will be filled with data very soon an you will see All RX buffers have been filled message in the Status box, other wise you will see RX buffer 1 is not full yet.
 * Once data are acquired, save the data by pressing Download Data.
 * Once data are downloaded, look at the results using the Main window in the DAQ software (please see the DAQ software Section for this).

 