Human body impedance for electromagnetic hazard analysis in the VLF to MF band
A knowledge of the average electrical impedance of the human body is essential for the analysis of electromagnetic hazards in the VLF to MF band. The purpose of the measurements was to determine the average body impedance of several human subjects as a function of frequency. Measurements were carried out with the subjects standing barefoot on a ground plane and touching various metal electrodes with the hand or index finger. The measured impedance includes the electrode polarization and skin impedances, spread impedance near the electrode, body impedance, stray capacitance between the body surface and ground, and inductance due to the body and grounding strap. These components are separated and simplified equivalent circuits are presented for body impedance of humans exposed to free-space electromagnetic waves as well as in contact with large ungrounded metallic objects therein.
- Research Organization:
- Department of Electrical Engineering, University of Utah, Salt Lake City, UT 84112, on sabbatical from Sophia University
- OSTI ID:
- 6437338
- Journal Information:
- IEEE Trans. Microwave Theory Tech.; (United States), Vol. MTT-32:8
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radio-frequency hazards in the VLF to MF band
Transmit antennas for portable VLF to MF wireless mine communications. Final contract report May 1974--May 1977
Related Subjects
MAN
ELECTRIC IMPEDANCE
BODY
CAPACITANCE
ELECTRIC GROUNDS
ELECTRODES
ELECTROMAGNETIC RADIATION
EQUIVALENT CIRCUITS
FREQUENCY DEPENDENCE
FREQUENCY RANGE
INDUCTION
SKIN
ANIMALS
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
IMPEDANCE
MAMMALS
ORGANS
PHYSICAL PROPERTIES
PRIMATES
RADIATIONS
VERTEBRATES
560400* - Other Environmental Pollutant Effects