发明授权
- 专利标题： Pyroelectric device
- 专利标题（中）： 热电装置
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申请号： US18530申请日： 1993-02-17
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公开(公告)号： US5352895A公开(公告)日： 1994-10-04
- 发明人: Masao Inoue
- 申请人： Masao Inoue
- 申请人地址： JPX Tokyo
- 专利权人： Nohmi Bosai Ltd.
- 当前专利权人： Nohmi Bosai Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-080536 19920219; JPX4-141925 19920508
- 主分类号： G01J5/34
- IPC分类号： G01J5/34 ; G08B13/191 ; G01J5/10
摘要：
A pyroelectric device includes a pyroelectric member for detecting infrared radiation, a transistor whose gate electrode is connected to one of the terminals of the pyroelectric member, a drain terminal connected to a drain electrode of the transistor, a source terminal connected to a source electrode of the transistor, a grounding terminal connected to the other terminal of the pyroelectric member, and a gate resistor connected between the terminals of the pyroelectric member. The gate resistor used in a pyroelectric device for a fire detection has a resistance ranging from 5 to 50 gigaohms, and the gate resistor used in a pyroelectric device for an intrusion detection has a resistance equal to or less than 30 gigaohms.
公开/授权文献
- USD363931S Clock radio 公开/授权日：1995-11-07
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