Pete, I am adding a HBM network class to my calibration software.
My original question was because the inherited Excel model is not consistent with the tables that you referenced, so I want the transfer functions. Another problem is that my PDF of IEC60990 has been corrupted and am (still) waiting for the backup tapes and am full of foolish hope that the restore program will work. When I become the emperor this will no longer be a problem because windoze will be banned.... Brian > -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of Pete > Perkins > Sent: Tuesday, June 29, 2010 4:38 PM > To: 'Brian O'Connell'; [email protected] > Subject: RE: [PSES] HBM for leakage circuit model > > Brian & PSNet, > > IEC 60990 has a table in Annex L; Table L.2 'Calculated input > impedance and transfer impedance for perception or reaction > touch current > measuring network (figure 4). The impedance, U2/I, has been > calculated and > more than a dozen values are shown from 20Hz to 1MHz. > > I don't use the transfer function but I have modeled > the circuit and > looked at the performance of many waveforms. I have > published several > papers on this at IEEE/PSES symposiums; you can find the > papers there. > > From my WG5 perspective, the transfer function is > important in the > design of any network that wants to perform as described in > IEC 60990. > > This relationship is also important to anyone calibrating this > network to show that the network/instrument follows curve > designed into it. > > As Convenor of TC108/WG5 I am interested in any work along this > line. > > I will be following this thread with great interest. > > br, Pete > > Peter E Perkins, PE > Principal Product Safety & Regulatory Consultant > Tigard, ORe 97281-3427 > > 503/452-1201 fone/fax > [email protected] - 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.ieeecommunities.org/emc-pstc 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]>
