calculate amplitude of sin signal??

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gameelgamal

Joined: 14 Dec 2006
Posts: 89
Location: Egypt

28 Apr 2009 15:19 how to calculate amplitude

Hi
I need an algorithm used to calculate amplitude of sin signal?
thanx...

Kral

Joined: 28 Mar 2005
Posts: 1182
Helped: 187

29 Apr 2009 16:57 calculate amplitude

gameelgamal,
You do not supply enough information. What parameters are available to you upon which to base your calculation?
Regards,
Kral

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gameelgamal

Joined: 14 Dec 2006
Posts: 89
Location: Egypt

30 Apr 2009 7:47 Re: calculate amplitude of sin signal??

Ok
I want to use a microcontroller to calculate the amplitude of a sin signal

the microcontroller has a built in analog to digital converter unit

the sin wave will be in the range of 220V-50Hz. So ,firstly, I will use a step down transformer

I also have an OPAMP circuit that can add a DC offset to the signal

What I need is an algorithm which can compute the amplitude using a certain numer of samples of the sin

thanx..