Mistake in HarmonicAnalyzer

[wolf4124]

Hello

I want to measure the THD with the PXI-4462Card.
I get the Array with the values from the card and give it in the function ScaledWindow => AutoPowerSpectrum => PowerFrquencyEstimate.
Then I start the function HarmonicAnalyzer.
The sample-rate from the PXI-Card is 10000.
I work with the array-size of a amount of 1024 Value.
Now i have as output from Percent_THDNoise the value 100.000.
Can me say somebody wer my mistake is?

[Wolfgang_Z.]

Hello Wolf,

I found this post in discussion forum. There is someone who has a similar problem.
http://forums.ni.com/ni/board/message?board.id=180&message.id=12720&requireLogin=False

Do you know the THD-Example in example finder? There is an example project that covers this application. Go to Help => Find Examples and search with keyword: thd.
Alternativ you can download this example here: http://zone.ni.com/devzone/cda/epd/p/id/2392

Regards,
Wolfgang