There's one OATS here in San Diego which uses tack-welded sheets of stainless steel. You really need your sunglasses there!
Ed :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military & Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) > -----Original Message----- > From: Scott Douglas [SMTP:s_doug...@ecrm.com] > Sent: Thursday, February 24, 2000 5:34 AM > To: ken.ja...@emccompliance.com; emc-p...@ieee.org > Subject: RE: conducted emissions test setup > > > Ken, > > The ground plane should be non-ferrous? That is a new one to me. Are all > the > OATS I have been to using non-ferrous ground planes? Never really noticed > that before. I thought they were all galvanized steel. Somebody please > enlighten me. > > Scott > s_doug...@ecrm.com > ECRM Incorporated > Tewksbury, MA USA > > > -----Original Message----- > From: ken.ja...@emccompliance.com [mailto:ken.ja...@emccompliance.com] > Sent: Wednesday, February 23, 2000 6:22 PM > To: mur...@grucad.ufsc.br; emc-p...@ieee.org > Subject: Re: conducted emissions test setup > Importance: Low > > > > The ground plane acts as a sink for common mode CE. Without it, you have > an > uncontrolled test. > > The ground plane should be non-ferrous. Cu or bronze or even Al will > work, > but you can solder to Cu and bronze, but not to Al. > > The ground plane is common with the green wire. > > The LISN must definitely be bonded to the ground plane. The analyzer is > connected by virtue of the coax connection to the LISN EMI port. That is > technically sufficient. > > The spectrum analyzer should have its power input sufficiently > well-filtered > to be able to share a power connection with the PC. If not, they can be > fed > from different circuits. The green wire should be common to both > circuits. > > ---------- > >>From: Muriel Bittencourt de Liz <mur...@grucad.ufsc.br> > >>To: Lista de EMC da IEEE <emc-p...@ieee.org> > >>Subject: conducted emissions test setup > >>Date: Wed, Feb 23, 2000, 8:32 AM > >> > > >> > >> Hello Group, > >> > >> Reading CISPR 16 and CISPR 22, I had some doubts about the correct > setup > >> for doing conducted emissions testing. I'd like to know if someone can > >> put a light on this subject. > >> > >> My questions are: > >> > >> - The "ground plane" is really needed? If I don't use one, my results > >> will be wrong? Or without a ground plane I'll be testing for the "worse > >> conditions"?? > >> > >> - The ground plane can be made of any metal? Or there are specified > >> ones? > >> > >> - The ground plane must be bonded to the GND connector of my mains? (my > >> outlet is three pins: P, N and GND) > >> > >> - If I understood, the ground plane will be my "reference ground", > >> right? > >> > >> - My testing equipment (receiver+LISN) must be bonded to this same > >> ground plane? The ground plane is bonded to the ground connector of my > >> mains? > >> > >> - I use a PC to collect the test data. Can it be feeded by the same > >> circuit that feeds the EUT+LISN? The ground connector of the PC (the > one > >> that's in the three pin plug) should be at the same ground than the > >> ground plane? > >> > >> Thanks in advance and Regards! > >> > >> Muriel > >> > >> -- > >> 8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-) > >> Muriel Bittencourt de Liz, M.Sc. - EMC Engineer > >> GRUCAD - Group for Conception & Analysis of Electromagnetic Devices > >> Santa Catarina Federal University - UFSC > >> PO Box: 476 ZIP: 88040-900 - Florianópolis - SC - BRAZIL > >> Phone: +55.48.331.9649 - Fax: +55.48.234.3790 > >> e-mail: mur...@grucad.ufsc.br > >> ICQ#: 9089332 > >> > >> --------- > >> This message is coming from the emc-pstc discussion list. > >> To cancel your subscription, send mail to majord...@ieee.org > >> with the single line: "unsubscribe emc-pstc" (without the > >> quotes). For help, send mail to ed.pr...@cubic.com, > >> jim_bac...@monarch.com, ri...@sdd.hp.com, or > >> roger.volgst...@compaq.com (the list administrators). > >> > >> > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
