Hi all,
I am currently working on a project that requires me to come up with a program that converts a time domain function into a frequency domain function.
The project is a simple setup of light tubes, which the intensity is captured by photosensors in voltage/time domain, which I want to make it undergo a FFT into frequency domain.
Currently, I am using pure generation of Signal Express formula given to me by seniors. I understand that SE can convert into LV but my objective is to come up something independent of SE, purely LV only.
After capturing 30Hz at a sampling rate of 1000/sec up to 2 secs, I will need to collect the data, but the waveform graphs shows me points at per Hz instead of 0.5Hz when I try to get the element out by using array.
I would also wish to have some advice on whether I have made any errors in the programming and appreciate all pointers as I just began learning this software.
Formula:
v(t) = Vdc*sin(w*t)+ Interharmonics magnitude*a*sin(2*pi* Interharmonics frequency* t )
edit : Well, "After FFT2" Wave form shows 0.5 Hz per sample, but FFT3 shows per hertz instead. How do I rectify this problem?
Message Edited by How81 on 07-01-2007 10:09 PM