University of Twente Student Theses


Visualisation of EMI in Real-Time

Rijswick, D.G.B van (2021) Visualisation of EMI in Real-Time.

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Abstract:Standard methods to measure the radiated electromagnetic emissions(EMI) use several measuring positions around the equipment under test(EUT). Most of these standards require the measurements to be done in the Frequency-Domain(FD) which can take several hours. Some emissions could be underestimated because of these methods. The measurement speed can be increased by using the Time-Domain(TD) instead of the Frequency-Domain for the measurements. Another effect of the Time-Domain is that the antenna now has the possibility to move slowly around the equipment under test while measuring. This also means that more points can be measured. Modern technology provides the possibility to track the antenna path during the entire measurement. By using this information an electromagnetic field density map surrounding the equipment under test can be plotted. This paper is proposing a fast measurement method that combines the Time-Domain measurements and antenna position tracking using infrared diodes in order to create an electromagnetic emission map around the equipment under test in Real-Time.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:53 electrotechnology
Programme:Electrical Engineering BSc (56953)
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