Spectral analysis of magnetic fields from domestic appliances and corresponding induced current densities in an anatomically based model of the human head.
Magnetic fields emitted by electric appliances such as razors, hair dryers, and drills were measured in the frequency domain. Results show the presence of high-frequency components (up to 96 kHz for razors, up to 3.4 kHz for hair dryers, and up to 8.6 kHz for drills) in the harmonic content of the fields. The measured fields were used to calculate the induced current densities in an anatomically based model of the human head (resolution 1.31 cm) by using the impedance method. The harmonic field contribution to the current density was higher than that from the carrier frequency for all the tested appliances.
Tofani
S
S
Servizio di Fisica Sanitaria, Ivrea, Italy.
Anglesio
L
L
Ossola
P
P
d'Amore
G
G
D004581:Electronics / Q000295:instrumentation*; D006257:Head; D006801:Humans; D008280:Magnetics / Q000009:adverse effects*; D008953:Models, Anatomic; D013057:Spectrum Analysis