Post by thread:rms measurement

part 0 1414 bytes <META content=text/html;charset=iso-8859-1 http-equiv=Content-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"> <META content='"MSHTML 4.72.3110.7"' name=GENERATOR> </HEAD> <BODY bgColor=#ffffff> <DIV> </DIV> <DIV><FONT face=Arial size=2><BR> </DIV></FONT> <DIV><FONT color=#000000 size=2>Can you help me for TRUE RMS  measurements  with PIC16F877.Are there any document about TRUE RMS measurement algorithm.</FONT></DIV> <DIV><FONT color=#000000 size=2></FONT> </DIV> <DIV><FONT color=#000000 size=2>Özcan KAMISLI<BR> <DIV><FONT size=3><BR>Tel:    +90,312.2101178-2101300/502<BR>Fax:    +90.312.2101309<BR>Url:    <A href="http://www.ekon-ltd.com.tr">http://www.ekon-ltd.com.tr</A> </FONT></DIV> <DIV><FONT face="" size=3>E-Mail:      <A href="spam_OUTinfoTakeThisOuTekon-ltd.com.tr">.....infoKILLspam@spam@ekon-ltd.com.tr</A> </FONT></DIV></FONT></DIV></BODY></HTML> </x-html>

You can find a lot of RMS how-to articles at http://www.tinaja.com - I think that there's a search engine there. This is the site of Don Lancaster, who has written a huge number of articles and columns for a huge number of electronics magazines. He seems to know a lot about almost everything. -Randy Glenn E-Mail: PICxpertKILLspamyahoo.com Web: http://i.am/PICxpert Currently wondering why I can't get in to Safe Mode - where's a Mac when you need it? {Original Message removed}

On Thu, 3 Feb 2000 19:01:20 +0200 ekon <.....ekonKILLspam.....KOSGEB.TEKMER.GOV.TR> writes: > > > > Can you help me for TRUE RMS measurements with PIC16F877.Are there > any document about TRUE RMS measurement algorithm. > Well, what I did was read the A/D, square the result and accumulate 256 of these squares. I then took the square root of the high half of the sum (throwing out the low half, or dividing by 256). The result was the RMS over the sample period. Harold FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: dl.http://www.juno.com/get/tagj.