Help with vibration analysis

[JohnatUSC]

Ok, so I had something that worked using the vibration toolkit VI's, then found that I can't build an EXE with them since their evaluation copies (no surprise, but I figured I would try).

Decided to modify the program to use Time-domain functions instead of the vibration toolkit ones.  That didn't work.  Those functions don't behave at all like the toolkit ones.

As a side note:  I now have to rebuild my original (working) VI because someone at NI decided that a normal "Save As" command just wasn't good enough and gave me a list of confusing choices of which, of course, I chose the wrong one.  I now have two identical copies of my nonworking, modified VI, one of which permanently overwrote the original working one.  Nice.

Message Edited by JohnatOIW on 08-04-2009 04:47 PM

[mallorim]

Hi John,

I am a bit confused as to the current state of your project. So, you had something that worked without error, but you now have to rebuild it? I looked at the screenshot you had attached previously and the Filter and Amplitude and Level Express VIs should be part of the Full and Professional LabVIEW development packages, so as long as you don't have the base package you should be able to use those.

Is there any thing I can help you with? If you change to microphones that use External Excitation, you can still use the 9234 DSA card. When you configure your sound pressure task, you simply select External as the Iex Source.

Regards,

Mallori M.

[JohnatUSC]

I had a project that worked, but it used the VIs from the Sound and Vibration Toolkit, specifically, the Integration VI's.  Since I only have an evaluation copy of the vibration toolkit, I cannot build an application using them.

I attempted to convert the project to using the integration VI's included in the full version, but the results don't seem to work like they were before. The only reason I have to rebuild it is I attempted to use the "Save As" command and save the changes under a new file name.  Unforunately, I got confused with all the options and accidentally saved using the wrong option, overwriting the original.  I have rebuilt the original and have it working as before.

So basically, I need to know what full package VI's will best mimic the operation of the SVL Integration VI and what filter styles will work best in this application.

Currently working on getting externally excited Accelerometers, but that is for a different project.  Not sure why I asked about that here, except that the accelerometers I currently have have are only good down to 0.5Hz.