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1. 发明申请

WO2004019298A2 TEST SOURCE FOR FLAME DETECTORS 审中-公开
标题翻译：火焰探测器的测试源
公开(公告)号：WO2004019298A2
公开(公告)日：2004-03-04
申请号：PCT/GB0303323
申请日：2003-07-31
申请人： MICROPACK ENGINEERING LTD , DAVIDSON IAN
发明人： DAVIDSON IAN
IPC分类号： G08B17/12 , G08B29/14 , G08B29/00
CPC分类号： G08B29/145 , G08B17/12
摘要： An infrared discharge tube is disclosed, the tube having a body (1) formed from a material, typically sapphire, generally transparent to infrared radiation of between 4 µm and 5 µm, and electrodes (2, 3) formed from a non-reactive or catalytic metal, such as nickel, cupro-nickel or oxidised copper. The body (1) forms a gas tight enclosure, and is evacuated of air and refilled with a mixture of carbon monoxide, carbon dioxide and nitrogen gas. The proportions and pressures of gases in the body (1) are adjusted depending upon the intended use of the source, but are generally in the order of 100mBar for a low energy source capable of stimulating a detector (for example in the case of optical integrity testing), and may be several tens of Bar for a high energy source suitable for use over several tens of metres. The tube is then sealed, and when a high voltage is applied between electrodes (2, 3) an arc is generated across a spark gap (4) between electrodes (2, 3). The metal of the electrodes (2, 3) is chosen so as to resist changes in relative proportions of the constituent gases of the mixture of gases in the tube.
摘要翻译：公开了一种红外放电管，该管具有由通常为蓝宝石的材料形成的主体（1），其通常对于4μm和5μm之间的红外辐射是透明的，以及由非反应性或非反应性形成的电极（2,3）催化金属，如镍，铜镍或氧化铜。主体（1）形成气密封壳体，并抽空空气并用一氧化碳，二氧化碳和氮气的混合物重新填充。体内（1）中气体的比例和压力根据源的预期用途进行调节，但对于能够刺激检测器的低能量源（例如在光学完整性的情况下）通常为100mBar的量级测试），并且对于适用于数十米的高能量源可以是几十巴。然后将管密封，并且当在电极（2,3）之间施加高电压时，跨越电极（2,3）之间的火花隙（4）产生电弧。选择电极（2,3）的金属，以便抵抗管中气体混合物的构成气体的相对比例的变化。

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