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    ULTRAVIOLET EMITTER FOR USE IN A FLAME DETECTOR AND A METHOD OF MAKING THE SAME
    2.
    发明公开
    ULTRAVIOLET EMITTER FOR USE IN A FLAME DETECTOR AND A METHOD OF MAKING THE SAME 审中-公开
    用于火焰探测器的紫外辐射发射器及其制造方法

    公开(公告)号：EP3243193A1

    公开(公告)日：2017-11-15

    申请号：EP15830961.7

    申请日：2015-12-29

    申请人： Carrier Corporation

    发明人： FOLLETT, Gary J.

    IPC分类号： G08B29/14 ,  G08B17/12 ,  H01J61/76 ,  H01J61/16 ,  H01J61/30 ,  H01J9/38 ,  H01J9/24 ,  H01J47/08

    CPC分类号： G08B17/12 ,  F23N5/082 ,  F23N2027/14 ,  G08B17/00 ,  G08B29/145 ,  H01J9/24 ,  H01J9/38 ,  H01J47/08 ,  H01J61/16 ,  H01J61/302 ,  H01J61/76

    摘要： A flame detector including an ultraviolet emitter configured to emit ultraviolet light at a strike voltage less than or equal to approximately 230 volts. A method of manufacturing an ultraviolet emitter for use in a flame detector, the ultraviolet emitter including a hermetically sealed, alkali rich, ultraviolet transmissive glass envelope, the method including: (a) wrapping an envelope exterior surface with a conductive material; (b) performing a first injection of at least one non-radioactive gas into the glass envelope at a first pressure; (c) applying a voltage bias to the glass envelope; (d) baking the hermetically sealed, alkali rich, ultraviolet transmissive glass envelope at a baking temperature for a baking duration of time; (e) cooling the hermetically sealed, alkali rich, ultraviolet transmissive glass envelope to a desired temperature; and (f) performing a second injection of at least one non-radioactive gas into the glass envelope at a second pressure.