SOME IN-SITU MEASUREMENTS OF THE RADIATED POWER EMISSION IN AN INDOOR NETWORK

摘要

In order to understand the origins of some electromagnetic disturbances in the frequency band from 1 MHz up to 30 MHz, some noise measurements of widely used household appliances have been carried out. These measurements are needed in order to differentiate disturbances coming from power line communication (PLC) systems and all the others. The radiated emission associated to some devices have been measured and compared to regulation limits proposals such as NB 30. Moreover, a parametric model is proposed for the description of the electric field strength versus the observation distance between the radiating source and the measuring point. Hence, it is possible to predict the evolution of the electric emission in a near field context for household appliances.