发明授权
- 专利标题: Transient electromagnetic field detector
- 专利标题(中): 瞬态电磁场探测器
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申请号: US675252申请日: 1984-11-27
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公开(公告)号: US4631473A公开(公告)日: 1986-12-23
- 发明人: Masamitsu Honda
- 申请人: Masamitsu Honda
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Univac Kaisha, Ltd.
- 当前专利权人: Nippon Univac Kaisha, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX56-140784 19810907
- 主分类号: G01R29/08
- IPC分类号: G01R29/08 ; G01R31/02
摘要:
A high frequency electromagnetic field detector for detecting high frequency electromagnetic fields comprises a micro antenna for mainly receiving the induction term of the electromagnetic field, an amplifier for amplifying a voltage induced on the antenna, a comparator circuit for comparing the output of the amplifier with a predetermined reference level to output a signal indicating that the output exceeds the reference level, and an indicator in response to the signal from the comparator circuit for indicating it.