发明名称 |
Flame and spark detector, automatic fire alarm and methods related thereto |
摘要 |
The present invention relates to a flame detector for detection of the presence of a flame or spark in front of the detector comprising a UV sensitive photocathode (12; 21) and an anode (14; 22), respectively, wherein the UV sensitive photocathode is oriented such that UV light from a flame present in front of the detector can strike the photocathode; a voltage supply unit (18; 23) connected to the UV sensitive photocathode and to the anode to force photoelectrons emitted from the UV sensitive photocathode when struck by UV light from a flame present in front of the detector to move towards the anode; and a readout arrangement (15-17; 24) adapted to detect charges induced by electrons moving towards the anode to thereby detect the presence of a flame in front of the detector. The flame detector can be combined with an alarm unit (33) to form an automatic alarm (31).
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申请公布号 |
US2002089283(A1) |
申请公布日期 |
2002.07.11 |
申请号 |
US20010899938 |
申请日期 |
2001.07.09 |
申请人 |
FRANCKE TOM;PESKOV VLADIMIR |
发明人 |
FRANCKE TOM;PESKOV VLADIMIR |
分类号 |
G08B17/12;(IPC1-7):G08B17/12 |
主分类号 |
G08B17/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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