11-15-2012 01:04 AM
Hi
I acquired 2-channel Acceleration data using NI PCI/PXI 4472 along with Labview DAQ Assistant. I received tdms files and converted them in excel files.
Now I need to carry out spectral analysis of data. I am using Labview 8.6 and am also provided with Sound and vibration toolkit 3.1.
I want final output in the form of a waterfall diagram that I can include in my thesis. I tried using excel data in Matlab but no luck.
I know basic use of Labview but completely new to SVT 3.1.
Can anyone please help me in explaining the basics of using waterfall display Palette in SVT 3.1 along with excel data?
Thanks.
11-15-2012 05:50 PM
Arty31,
I don't have access to the Sound and Vibration Toolkit 3.1, but you may be able to check out the Example Finder to see if there are any shipping examples that show the correct method to use a Waterfall Graph. If you navigate to Help > Find Examples > Toolkits and Modules > Sound and Vibration you can find the shipping examples that came with the toolkit. The version of S&V I have includes an example that displays simulated data onto a Waterfall Graph. If this example exists on your version of the toolkit, you could read in your data from your Excel file and replace the simulated data from the example with your real data.
11-15-2012 08:11 PM
Thanks Jared,
I tried searching for examples and found SVXMPL_Waterfall Display (Simulated). I guess that is the one you are referring to.
I tried to run that one but it ended with Error 1445.
I went through another thread on error 1445 (http://forums.ni.com/t5/LabVIEW/SVT-3-1-LabView-8-Error-1445/m-p/310575/highlight/true#M161064) and the referred knowledge base (http://zone.ni.com/reference/en-XX/help/371361G-01/glang/open_vi_reference/) but could not get how to correct the error. I am attaching the screent shot of the VI.
It would really be of great help if I can get an idea on how to solve error 1445 for this VI.
11-16-2012 05:08 PM
arty31,
This error is related to a VI Reference not being able to be opened because of an invalid path being provided. Does the error message provide any further information regarding where in the code the problem was occuring? Did you change the example at all before you tried to run it? Shipping examples should work right out of the box.
It may be possible that your toolkit needs to be repaired. If you would like to perform a repair on your toolkit, follow the instructions in the link below:
AE KB 2V97P72H : How Do I Uninstall or Repair National Instruments Software?
http://ae.natinst.com/public.nsf/web/searchinternal/ac6ed75d3d93375686256e8e00245f0d?OpenDocument