In a message dated 3/22/2005 3:53:10 P.M. Central Standard Time,
Dennis12Amplify@aol.com writes:
In a message dated 3/22/05 3:32:00 PM Central Standard Time,
garyschafer@comcast.net writes:
Dennis12Amplify@aol.com wrote:
>
> In a message dated 3/22/05 3:05:53 PM Central Standard Time,
> garyschafer@comcast.net writes:
>
> The RMS value of a power wave form is not the same as finding the RMS
> voltage value, squaring it and dividing by resistance.
>
>
>
> Exactly what does a power waveform look like?
>
> Please read completely before you respond......
>
> If you look at the statement made by TexasRF that I was responding to,
I
> don't think you will find any fault with my answer as to why average
power
is
> not ZERO....
>
> egards,
>
> Dennis O.
No fault found with why average is not zero.
This is the part I was responding to:
>"The RMS value is the squareroot of the mean value all of those
>instantaneous power measurements over some finite period of time."
I guess you meant instantaneous VOLTAGE rather than power? Otherwise you
would be finding the RMS value of power.
*** You are quite correct.
*** I should have said voltage or current instead of power.
*** Thank you,
*** Dennis O.
When I said:
The RMS value of a power wave form is not the same as finding the RMS
voltage value, squaring it and dividing by resistance.
73
Gary K4FMX
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My old ARRL Handbook calls RMS power a mathematical curiosity. If one were
measuring RMS power I assume it would equal .7071 times peak power? Or. 1.414
times average power?
We can really make this interesting by adding pep to the mix!
73/k5gw
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