发明名称 |
ANORDNING FOER OEVERVAKNING AV SLAECKNINGSTILLSTAOND AV EN AUTOMATISK BRANDSLAECKNINGSANLAEGGNING. |
摘要 |
Apparatus for monitoring the fire extinguishing condition of automatic fire extinguishing equipment which is adapted to detect flames and spray a fire extinguisher liquid from a nozzle to extinguish a fire. The apparatus comprises a detector for generating a signal corresponding to the light energy radiated by the flames and a fire determination circuit for determining that the fire extinguisher liquid is hitting the flames when the detector signal has a DC component but has no AC component, since the AC component corresponds to flicker of the flame and ceases when the fire is sprayed with the fire extinguisher liquid. |
申请公布号 |
FI84527(C) |
申请公布日期 |
1991.12.10 |
申请号 |
FI19850005065 |
申请日期 |
1985.12.18 |
申请人 |
HOCHIKI KABUSHIKI KAISHA, |
发明人 |
ARAI,YOSHIO;KITAJIMA,AKIRA;AKIBA,KOUJI |
分类号 |
A62C31/00;A62C37/00;A62C37/36;G08B17/00;G08B17/12;(IPC1-7):G08B17/12;A62C37/40 |
主分类号 |
A62C31/00 |
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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