Title :
Effects of DC and AC electric magnetic fields on people and animals
Author :
Farmer, Laurie E. ; Oman, Henry
Author_Institution :
Boeing Co., Seattle, WA, USA
Abstract :
It is pointed out that the intensity and flux of the magnetic field about a current-carrying conductor can be precisely calculated with formulas derived from the standard definitions of the ampere, volt, and tesla. The flux from electromagnetically complicated apparatus can be measured with simple instruments. It is noted that DC fields under 70 microteslas, the Earth´s field flux in northern Canada, are benign without question. Also, patients experience without discomfort fields up to two teslas in magnetic-resonance imaging. Meaningful speculations about the effects of 60 Hz AC fields on people are expected to be reached by the conclusion of Electric Power Research Institute (EPRI) research, which is scheduled for 1993 completion
Keywords :
biological effects of fields; biomagnetism; biomedical NMR; power overhead lines; 60 Hz; 70 muT; AC; DC; Earth´s field flux; Electric Power Research Institute; animals; current-carrying conductor; electric magnetic fields; flux; intensity; magnetic-resonance imaging; northern Canada; overhead power lines; people; three phase power lines; Animals; Conductors; Gaussian processes; Magnetic flux; Magnetic materials; Magnetic resonance imaging; Magnetic separation; Permeability; Steel; Wire;
Conference_Titel :
Aerospace and Electronics Conference, 1991. NAECON 1991., Proceedings of the IEEE 1991 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-0085-8
DOI :
10.1109/NAECON.1991.165787
