Harmonics measurements..

hello frnds...

i want to measure harmonics but i have no knowledge about it so please help me about it...

please give me tutorial or details about harmonics...

please help me...
give me some details....

@ jigneshdoshi
http://www.kmitl.ac.th/~kswichit/PICTHD/picthd.htm

@majoka
thnks for help and i see this and i think it is superb link for harmonics but if can u please give any explanation deeply?

@ jigneshdoshi
normally harmonics leads to DSP (Digital Image Processing)
for finding harmonics u need FFT (Fast Fourier Transform)
now using Matlab it is easy as that is a big tool
using too much memory behind it but using controller that has limited memory
u need to do some tricks
u need to find out coefficients of transforms using matlab and use that in ur code
obviously no fractional used whole words
also u has to know the logic behind FFT
also decided how much points of FFT transform u has to done using controller

ohk thnks...
if i have any other doubt then i ll post query...

welcome jigneshdoshi

@majoka

is there any other site from which u post before in this thread?

@jigneshdoshi
no i post only here

ohk thanks...
if anybody has other material then please give me....