| 摘要 |
PROBLEM TO BE SOLVED: To provide an explosion-proof type static electricity measuring device easily satisfying demands for an essential safety explosion-proof structure by preventing over-current or short circuit in an internal circuit. SOLUTION: A plurality of current limiting resistors 13 are connected in series to a battery 5. A plurality of current limiting resistors 16, 17 are connected in series with AC component eliminating condensers 14, 15 in a D/D converter 6 of a power source part, respectively. A plurality of current limiting resistors 23, 24 are connected in series with grand connecting condensers 21, 22 in a measuring part A, respectively. COPYRIGHT: (C)2008,JPO&INPIT
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