Experimental investigations of electromagnetic indoor radiations within an electronics factory

摘要

The present study reports experimental measurements for the determination of radiant electromagnetic fields, both in the low frequency range (0-100 kHz) and in the high frequency (0,1-3.000 MHz) range. Using dedicated analyzers and antennas, the authors measured the intensity of the electric field (V/m), the magnetic induction density (Tesla) and the power radiation density (W/m2) in both absolute and relative values [1], [2]. The investigations took into account the persistence of electromagnetic pollution sources in the production hall in low frequency range: transformers, distribution cabinets, power switching devices or in high frequency range: switches and racks, Wifi emitters, GSM antennas. The obtained results with peak, average and r.m.s. detectors and filtering procedure are interpreted in correlation with the limit values specified in the ICNIRP standards for public and occupational areas (Tab.1).