Analysis of Body Hair Movement in ELF Electric Field Exposure

For the study of the perception of ELF electric field, a fundamental study was conducted on the movement of body hair in field exposure. The electric force exerted on a hair was given from the force component at dielectric discontinuity. With this force, the equation of the hair displacement in field exposure was derived. The displacement evaluated by the equation agreed well with experimental results. Finally, the hair movement in field exposure was formulated theoretically. The derived equation well describes the real movement of body hair in field exposure. With the equation, the mechanisms of the threshold variation in the field perception was made clear