One Year Period Survey of Residential Magnetic Fields

摘要

This paper presents the results of a one year period survey of the 50 Hz magnetic fields in some dwellings and laboratories. By performing a great number of measurements, the authors considered the spatial and temporal variability. Thus, we determined the daily, weekly, monthly and annual variability of the magnetic field. We also made the time and frequency domain measurements of B, to characterize the harmonics contents of the residential magnetic field. This study is important in the field exposure estimation and the design of the power supply systems for the generated magnetic field reduction.