| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electroscope which can be prevented from malfunctioning owing to reverse induction, using a simple means. SOLUTION: The electroscope 11 is provided atop of a body part 14, having a detector 13 which is electrically connected to a detected part 12 by coming into contact with the detected part 12, has in the body part 14 a detecting circuit part 15 which detects an electrostatically induced current (i) flowing from the detected part 12 via the detector 13 by floating electrostatic capacity formed with the ground and indicates the charging state of the detected part 12 according to its detection signal, and is equipped with an insulating grip part 16, extending from the base end of the main body part 14; and a ground electrode 17 electrically connected to the detecting circuit part 15, is extended from the detecting circuit part 15 to the grip part 16 sufficiently long to form a desired floating electrostatic capacity C1 together with a human body (m) which grips the grip part 16.</p> |
