Fire, temperature or heat detector
    1.
    发明授权
    Fire, temperature or heat detector 失效
    火,温度或热量检测器

    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

    CPC分类号: G01K7/22 G01K3/005 G08B17/06

    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。

    Optical fibre U.V. and/or I.R. line fire detector
    2.
    发明授权
    Optical fibre U.V. and/or I.R. line fire detector 失效
    光纤紫外线 和/或I.R. 线路火灾探测器

    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。