DESTATICIZATION METHOD AND ELECTROSTATIC CHARGING STATE MEASURING METHOD FOR ELECTROSTATIC CHARGED BODY

摘要

PURPOSE:To expand a destaticization setting area, to unnecessiate the decomposing/absorbing device of ozone, and to miniaturize by applying the damping alternating voltage of a specific frequency to a non-electrostatic charge body and destaticizing. CONSTITUTION:When a conductive electrode 3 is brought into contact with the surface of an electrostatic charged body 2, a voltage is applied between the electrostatic charged body 2 and the conductive electrode 3, the both are moved at a relative velocity (v)mm/sec relatively, and the surface of the electrostatic charged body 2 is destaticized, the applied voltage is the damping alternating voltage that its peak value is more than the electrostatic charge starting voltage toward the electrostatic charged body 2 as well as which is applied by a frequency f(Hz), v/f=0.1(mm). Thus, the high voltage is not necessary such as a corona discharger, and it is possible to destaticize the electrostatic charged body 2 without generating the ozone at the comparatively low voltage, and to measure a potential by electrification having a slight irregularity of the electrostatic charged body 2 by a simple configuration.