Abstract: A static eliminator comprises one pair of discharge electrodes. One electrode issues ions of a polarity while the other electrode issues ions of opposite polarity. In addition to the foregoing, polarity of ions issued from each of said discharge electrodes is switched over to opposite polarity. The switching over of polarities is synchronized with each other so that ions issued from each discharge electrodes are of opposite polarities. In another embodiment, static eliminator comprises a rotary ionizer or rotary ion issuing discharge electrodes. In still another embodiment, static eliminator comprises more than three arrayed discharge electrodes, each of discharge electrodes issues ions of opposite polarity to that issued from adjacent discharge electrodes.

Abstract: There is a wear-type of static eliminator which comprises a static eliminator body attachable to the human body, and a discharge section disposed within said remover body to issue ions toward the human body, Also there is a static potential measuring instrument which comprises: a plus discharge needle for use in plus ion discharge, a minus discharge needle for use in minus ion discharge, a current source for generating a current supplied to said plus discharge and minus discharge needles, a plus current ammeter for measuring a current flowing from said current source to said plus discharge needle, a minus current ammeter for measuring a current flowing from said current source to said minus discharge needle, means of calculating the difference between absolute values of currents obtained by said ammeters, the ratio of one absolute value of current obtained by one of said ammeter to the other absolute value of current obtained by the other of said ammeter or both the difference and the ratio, and a measuring t