what are the options for software filtering for PCI 4551

[Mallesh]

Hello sir,

I am using PCI 4551 with real-time octave analysis software on Labview platform for my frequency response analysis application. It is needed to go for software filtering option for one of my application where my UUT will go under EMI tests, and the response signal from the UUT for EMI tests should be measured with NI PCI 4551 for software analysis. Can any one of you help me whether it is possible with PCI 4551 and labview? or any other software add-on tools to be used to achieve software filtering, and what are the different frequency ranges with the available solution? Eagerly waiting for the reply with right solution.

Regards,
A.D.Malleswara Rao

[Alan_L]

A.D.,

It's absolutely possible! You have a couple of options for software filtering in LabVIEW using the PCI-4551. First, keep in mind that you'll be able to analyze the frequency components of your signal up to about 102 kHz (The Nyquist Frequency since your device samples at 204.8 k.) The Full (and Professional) LabVIEW Development systems include a multitude of VIs for low, high, and band-pass filters. However, for even easier programming and more powerful filters that have already been developed for you, take a look at the Sound and Vibration Toolset. I've linked the product page below. From there you can access the manual for even more information about what features the toolset includes. I highly recommend the Sound and Vibration Toolset -- it was designed with your hardware in mind.

The LabVIEW Sound and Vibration Toolset

Best Regards,
Alan L
Applications Engineer
National Instruments

[Mallesh]

Mr.Alan L

Thanq for your reply. Is it the same for PCI 6229 also? I am using PCI 6229 for data acquisition and PCI 4551 frequency response analysis application. So, those LabVIEW software filters also applicable for the PCI 6229? More clearly, the same signal which is acquired with PCI 4551 can also be effectively acquired with PCI 6229 without any signal conditioning? I think software filtering for both the cases should be the same. Is it not?
The following is the configuration I am going for:

1). PCI 4551 for FRA
2). PCI 6229 for 32 channel DAQ
3). Labview 7.1 FDS
4). Real-Time Octave analysis tool
5). Sound and Vibration analysis tool

Please reply.

Regards
A.D.Malleswara Rao

[Alan_L]

A.D.,

While each of these boards have different choices of input ranges (gain settings), ultimately both will return waveform data in its raw form to LabVIEW (your programming environment). At that point it's irrelevant which acquisition device digitized the signal with regard to software filtering. Your suggested system appears that it will do the trick!

Thanks!!


Best Regards,
Alan L
Applications Engineer
National Instruments