Fire sensor
    22.
    发明授权
    Fire sensor 失效
    防火传感器

    公开(公告)号:US5376924A

    公开(公告)日:1994-12-27

    申请号:US950470

    申请日:1992-09-24

    摘要: A fire sensing method and apparatus for detecting a fire based on the detection of a hydrocarbon gas produced before fire ignition and the detection of a second fire indicating phenomenon. Such other phenomenon may comprise the detection of temperature, radiation or combustion product gases. The detection of hydrocarbon gas may generate a pre-alarm condition which permits the use of higher sensitivity conditions for the second fire indicating phenomenon.

    摘要翻译: 一种火灾检测方法和装置,用于基于检测在点火前产生的烃气体和检测到第二火焰指示现象来检测火灾。 这种其他现象可能包括检测温度,辐射或燃烧产物气体。 碳氢化合物气体的检测可能会产生预报警状态,允许对第二次火灾指示现象使用较高的灵敏度条件。