On Mon, 27 Feb 2017 12:15:43 +0000, "Price, Andrew (Leonardo, UK)" <andrew.p.pr...@leonardocompany.com> wrote:
> The customer has requested an extended magnetic field emission test over the > range 100kHz to 2MHz with a limit defined in dBpT. > The antenna to be used is an EMCO 6512 which has it correction factors > provided in dBS/m which the emission software used does not recognise. > So is there a conversion factor that enables the right correction factor to > be entered or is the conversion factor only used once a result is obtained?? By adding magnetic antenna factor in dBS/m to measured voltage in dBuV, we can get magnetic field strength in dBuA/m. (S/m x uV = (uA/uV)/m x uV = uA/m) Because 1 uA/m = 1.257 pT hence 0 dBuA/m = 1.99 dBpT in air, we can get field strength in dBpT by adding 1.99 dB(pT/(uA/m)) to the field strength in dBuA/m. Regards, Tom -- Tomonori Sato <vef00...@nifty.com> URL: http://t-sato.in.coocan.jp - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> 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://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
