I've been reading through Vol 2 of "Electromagnetic Interference and Compatibility" and the author writes that the QP detector is distinguished from the peak detector by its time-constants. The charge time-constant being 1ms and discharge time-constant either 160ms for HF or 550ms for VHF receivers. It would seem to be a simple as that with no post-processing by receiver or computer necessary. The book is 35 years old, but I suspect QP detectors haven't changed since then. _____________________________________________________________________________________
Ralph McDiarmid | Schneider Electric | Renewable Energies Business | CANADA | Regulatory Compliance Engineering From: John Woodgate <[email protected]> To: [email protected] Date: 12/02/2011 12:36 AM Subject: Re: [PSES] Quasi-peak In message <A7C32E638E804E6CA1B9E8454809B594@JohnHP>, dated Thu, 1 Dec 2011, John Shinn <[email protected]> writes: >Actually there are FIVE: In responding to amateur 'EMC crusaders' who dream up curious and impracticable requirements (such as a complete ban on conducted harmonic current emissions), I have had to add a sixth: NO-ONE cares. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK Some people who are peeling the finch of the financial crisis are thinking of biting a rook. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. ______________________________________________________________________ - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
