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公开(公告)号:US4175437A
公开(公告)日:1979-11-27
申请号:US916533
申请日:1978-06-19
申请人: Dennis W. Burt
发明人: Dennis W. Burt
摘要: A fire, temperature or heat detection system is disclosed which comprises a cable having at least two conductors separated by insulation whose electrical characteristics vary with temperature, and means connected to the conductors of the cable for detecting variations in the electrical characteristics of the insulation.
摘要翻译: 公开了一种火灾,温度或热量检测系统,其包括具有至少两个由电气特性随温度变化的绝缘体分开的导体的电缆,以及连接到电缆的导体的装置,用于检测绝缘体的电气特性的变化。
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公开(公告)号:US4418338A
公开(公告)日:1983-11-29
申请号:US208558
申请日:1980-11-20
申请人: Dennis W. Burt
发明人: Dennis W. Burt
IPC分类号: G08B17/12
CPC分类号: G08B17/12
摘要: A fire and/or heat detection system comprises an optical fibre which is either unsheathed or sheathed in a transparent material such that U.V. or I.R. radiation in the vicinity of the fibre passes through the skin into the body of the fibre. Means are connected to the ends of the fibre to measure these radiations.
摘要翻译: 火和/或热检测系统包括光纤,其是未透湿的或者是以透明材料包覆的, 或I.R. 纤维附近的辐射通过皮肤进入纤维体内。 装置连接到光纤的端部以测量这些辐射。
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