This report describes the test of state electromagnetic capatibility effects to system, The scanner model is built in pattern two dimension of stepmotor. Circuit board is placed on XY axis and the near field probe is in align Z axis. We use a microcontroller version 8052 control algorithms of the moving stepmotor. Therefore, spectrum analyzer can detect electromagnetic field from the near field probe and send data to the personal computer in order to display graphic form. Using Visual Basic and Matlab to move the scanner, receive data from the spectrum analyzer and output display in graphic form.
By
Kongparb Saetun
Kittikanchana Saepung
