MODEL OF THE ROHDE & SCHWARZ EZ-17 CURRENT PROBE AND CREATION OF A DIY
ANALOG FOR EMI STUDY
Abstract
This article presents a description of the process of creating a model
of the EZ-17 (Model 02) current probe by Rohde & Schwarz, which is
extensively used in electromagnetic compatibility (EMC) research. A
methodology for evaluating each component of the model is outlined step
by step. However, the goal is not to physically disassemble an EZ-17
sensor, but to use only the parameters provided in the technical
specifications of the device in creating the model. A comparison of the
simulation results and the characteristics in the documentation shows a
good fit between the model and the real device. An attempt was made to
construct a doit-yourself (DIY) analog of the EZ-17 sensor using
inexpensive parts and experimental comparisons were made between the
analog and the actual device.