Analysis of parallel plate simulation of the transmission line electric field as related to biological effects laboratory studies

Shih, C. H.; Placido, J. Di; Ware, B. J.

doi:10.1109/t-pas.1977.32409

Cited by 14 publications

References 4 publications

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Numerical calculation and measurement of 60‐Hz current densities induced in an upright grounded cylinder

Kaune

McCreary

1985

Bioelectromagnetics

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Power-frequency electric fields are strongly perturbed in the vicinity of human beings and experimental animals. As a consequence, the extrapolation of biological data from laboratory animals to human-exposure situations cannot use the unperturbed exposure field strength as a common exposure parameter. Rather, comparisons between species must be based on the actual electric fields at the outer surfaces of and inside the bodies of the subjects. Experimental data have been published on surface and internal fields for a few exposure situations, but it is not feasible to characterize experimentally more than a small fraction of the diverse types of exposures which occur in the laboratory and in the field. A predictive numerical model is needed, one whose predictions have been verified in situations where experimental data are available, and one whose results can be used with confidence in new exposure situations. This paper describes a numerical technique which can be used to develop such a model, and it carries out this development for a test case, that of a homogeneous right-circular cylinder resting upright on-end on a ground plane and exposed to a vertical, uniform, 60-Hz electric field. The accuracy of the model is tested by comparing short-circuit currents and induced current densities predicted by it to measured values: Agreement is good.

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Numerical calculation and measurement of 60‐Hz current densities induced in an upright grounded cylinder

Kaune

McCreary

1985

Bioelectromagnetics

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A 60 Hz electric and magnetic field exposure facility for nonhuman primates: Design and operational data during experiments

Rogers

Lucas

Cory

et al. 1995

Bioelectromagnetics

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A unique exposure facility was designed and constructed to generate large-scale vertical electric fields (EF) of up to 65 kV/m and horizontal magnetic fields (MF) of up to 100 microT (1G), so that the behavioral and neuroendocrine effects of 60 Hz EF or combined electric and magnetic field (E/MF) exposure could be examined using nonhuman primates as subjects. Facility design and operational problems and their solutions are presented, and representative operational data from four sets of experiments are provided. A specially designed, optically isolated, 4 cm spherical-dipole EF probe and a commercially available MF probe were used to map the EF and MF within the fiberglass animal cages. In addition, amplifiers, signal conditioners, and A/D converters provided EF, MF, and transformer signals to a microcomputer at 15 min intervals. The apparatus produced homogeneous, stable E/MF at the desired intensities, and the fiberglass cages did not produce appreciable distortion or attenuation. Levels of recognized EF artifacts such as corona and ozone were negligible. The facility worked as intended, providing a well-characterized and artifact-controlled environment for experiments with baboons (Papio cynocephalus).

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Design of uniform electric field exposure system for biological experiments

Kobayashi

Matsumoto

Nishiyama

et al. 1981

Electron. Comm. Jpn. Pt. I

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In recent years, an interaction between electromagnetic environment and the living body has attracted researchers' attention. The authors have studied the effect of low‐frequency (50, 60 Hz and dc) electric field on the living body and constructed the electric field exposure system. In the conventional exposure system, animals are exposed to electric field between parallel plate electrodes in an insulated cage. However, the electric field inside the cage has not been investigated in detail. In this paper, the electric field intensity and the field uniformity inside the cage are analyzed. Based on the analysis result, a new exposure system is designed. The electric field distribution inside the cage is analyzed by the finite‐difference method. The field uniformity is more than 84%. The measured value agrees with the calculated value. The new system is simple in structure, can readily be constructed and is reliable for a long time.

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Analysis of parallel plate simulation of the transmission line electric field as related to biological effects laboratory studies

Cited by 14 publications

References 4 publications

Numerical calculation and measurement of 60‐Hz current densities induced in an upright grounded cylinder

Numerical calculation and measurement of 60‐Hz current densities induced in an upright grounded cylinder

A 60 Hz electric and magnetic field exposure facility for nonhuman primates: Design and operational data during experiments

Design of uniform electric field exposure system for biological experiments

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