# LabVIEW

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## Problem on Normalized Frequency to original analog frequency

I'm having a problem regarding normalized frequency.

The Sine wave .vi, says that the input to the frequency  must be a normalized frequency. What I did is tha I divide my frequency to the number of samples.

However, when I attached Tone Measurements to output signal of the sine wave, I'm not having a frequency of what i set.

In my example my input frequency is 60 Hz however what was detected by the tone measurement was the normalized frequency which is 0.06.

How do I modify this VI, in order that i will have a frequency in 60 hZ,

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## Re: Problem on Normalized Frequency to original analog frequency

The problem with trying to calculate a frequency is that you need a time element.  You don't have a time element.  So I'm thinking 1 sample/second is used.

Try using the Sine Wave.vi (it is in the Signal Processing->Waveform Generation palette).  With that function, you need to supply the sample rate and the actual frequecy that you want.

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## Re: Problem on Normalized Frequency to original analog frequency

You have any other ideas regrading this matter?

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## Re: Problem on Normalized Frequency to original analog frequency

What was wrong with using the waveform generating function I suggested?

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## Re: Problem on Normalized Frequency to original analog frequency

You already know how to add dt to a waveform so why aren't you doing it now?

http://forums.ni.com/t5/image/serverpage/image-id/161250i0CB6D7B4414D7F3D/image-size/original?v=mpbl...
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