Abstract
In order to study the biological effects of an ELF (extremely low frequency) electric field, the force exerted on body hair due to field exposure was investigated. It was shown theoretically that the force was proportional to the spatial gradient of the square of the electric field at the hair, and that it had a positive correlation with the dielectric constant of hair. A technique to measure the dielectric constant of hair in the ELF range was developed. Measurements were conducted at different temperatures and humidities of air surrounding human hair. It was found that the dielectric constant of hair increased with the relative humidity. It is concluded that these results provide useful information concerning the mechanism of the biological effects of the electric field. They explain well the seasonal variation of the threshold level of field perception. Therefore, the results suggest that the effect of humidity should be taken into account in setting up the safety standard for field exposure.
| Original language | English |
|---|---|
| Pages (from-to) | 633-637 |
| Number of pages | 5 |
| Journal | Unknown Journal |
| Issue number | pt 2 |
| Publication status | Published - 1989 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Measurement and analysis of ELF electric field on human body surface. / Odagiri, Hisae; Shimizu, Koichi; Matsumoto, Goro.
In: Unknown Journal, No. pt 2, 1989, p. 633-637.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement and analysis of ELF electric field on human body surface
AU - Odagiri, Hisae
AU - Shimizu, Koichi
AU - Matsumoto, Goro
PY - 1989
Y1 - 1989
N2 - In order to study the biological effects of an ELF (extremely low frequency) electric field, the force exerted on body hair due to field exposure was investigated. It was shown theoretically that the force was proportional to the spatial gradient of the square of the electric field at the hair, and that it had a positive correlation with the dielectric constant of hair. A technique to measure the dielectric constant of hair in the ELF range was developed. Measurements were conducted at different temperatures and humidities of air surrounding human hair. It was found that the dielectric constant of hair increased with the relative humidity. It is concluded that these results provide useful information concerning the mechanism of the biological effects of the electric field. They explain well the seasonal variation of the threshold level of field perception. Therefore, the results suggest that the effect of humidity should be taken into account in setting up the safety standard for field exposure.
AB - In order to study the biological effects of an ELF (extremely low frequency) electric field, the force exerted on body hair due to field exposure was investigated. It was shown theoretically that the force was proportional to the spatial gradient of the square of the electric field at the hair, and that it had a positive correlation with the dielectric constant of hair. A technique to measure the dielectric constant of hair in the ELF range was developed. Measurements were conducted at different temperatures and humidities of air surrounding human hair. It was found that the dielectric constant of hair increased with the relative humidity. It is concluded that these results provide useful information concerning the mechanism of the biological effects of the electric field. They explain well the seasonal variation of the threshold level of field perception. Therefore, the results suggest that the effect of humidity should be taken into account in setting up the safety standard for field exposure.
UR - http://www.scopus.com/inward/record.url?scp=0024918437&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024918437&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0024918437
SP - 633
EP - 637
JO - Nuclear Physics A
JF - Nuclear Physics A
SN - 0375-9474
IS - pt 2
ER -