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).
