I'm know that in a previous life we used Chase software to do all these measurements and produce the final test curve that was used for testing. Thankfully now I get to take the developed equipment to a local EMC test house and let them deal with all the calibration requirements. Check the Chase web site for more details. http://www.schaffner-chase.co.uk/ and in particular http://www.schaffner-chase.co.uk/software.htm which details the software they produce for emissions and immunity testing.
Regards Paul Smith Fife. Scotland > -----Original Message----- > From: [email protected] [SMTP:[email protected]] > Sent: Wednesday, December 02, 1998 4:42 PM > To: emc-pstc > Subject: EN61000-4-3 Hints and Tips > > > It's that time of year again where our lab must perform the dreaded > "Calibration > of Field" test for the EN61000-4-3 standard "Radiated Immunity". If > you > performed the test as explained in the standard (section 6) moving the > Field > Probe to each of the 16 positions for each frequency for both vertical > and > horizontal and for us at 3V/m and 10V/m power levels, you have to go > inside the > chamber over 17,000 times. > > Because this is not practical, I assume that most labs measure all > frequencies > at each of the 16 positions. This reduces the number of trips into > the chamber > to only 64, but you still have to deal with over 17,000 pieces of > data. > > What we currently do is level at each frequency to the desired field > strength > (lets say 3V/m) and store the output level of the Signal Generator. > Repeat this > for all 16 positions. Then for each frequency throw away the 4 > highest values > and keep the fifth. This is the data that we will use during the > test. This > will take us anywhere from 3-5 days to gather and calculate all the > data. > > There is got to be a better way, hopefully easier and quicker. I'm > very > interested in how other labs perform this annual procedure. Any hints > or Tips > would be most appreciated. > > Thanks in advance, > Brian > > > > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
