Is it possible to analyze output of acs712 . And compute fft of it to segragate different harmonic content
Yes to both questions.
jremington:
Yes to both questions.
Sir guidance please
Guidance for what?
Describe your project. Ask a sensible question.
My project is to develop harmonic restraint differential protection for transformer for that I need to check harmonic content of both ( primary and secondary ) side current.
First I have choosen acs712 hall effect sensor of 20a rating to sense current at both side.
And provided it's output at two analog pin
I need fft of these two signals.
Try searching the web with "arduino fft" for code examples.
jremington:
Try searching the web with "arduino fft" for code examples.
Already tried searching , not found significant example
I wonder what you mean by "significant". Somehow, I have the impression that this project will be very difficult for you.
People very often use the Open Music Labs FFT (which is the second hit on a Google search for "arduino fft"), but there are many, many other code examples.
http://wiki.openmusiclabs.com/wiki/ArduinoFFT
.