In the attached example.vi picture you can see that the FFT is bundled with frequency spacing. I thought my problem was the same, so I am not sure where sampling rate is stripped off. I would be happier to find the error and fix it rather than force it to believe what I tell to the program, but I will try the suggested express vi.
I am expecting a frequency of 60 Hz which I calculated through hotwire experiements, but I am getting 0.06 from 'tone measurements.vi'.
Thank you for your kind help.
ps. sorry for the duplicate message