how to implement AI_Change_Parameter function?

[peterliujie]

Hi, everyone, I just bought a NI 4472 DSA board, and want to enable IEPE excitation for a channel for connecting a ICP Accelerometer, but I do not have LabView, only use MATLAB, I don't know how to implement  AI_Change_Parameter function in the matlab? I know the devNum is 1 and chanNum is 2, then directly use this function {AI_Change_Parameter (1, 2, ND_DSA_EXCITATION, ND_ON) } in MATLAB, it does not work, could you please let me know what is the problem and how can I use this AI_Change_Parameter function?

Another question: I checked here and found that the amplifier gain for this NI 4472 DAS board can NOT been adjusted, is that true? I just plan to amplify the signal before it goes to MATLAB.

Thanks.

[Travis_W]

Hi,

In regards to your question on the amplifier gain, you are correct, there is only 1 range setting on the 4472.

In regards to you question on programming Traditional NI-DAQ in Matlab, this shuold be handled on your post on the Multifunction DAQ forum to get the most help from other users with similar experience.

Have a great day!
Travis W