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机构地区:[1]北京天洋浦泰投资咨询有限公司,北京100089
出 处:《灯与照明》2012年第1期58-62,共5页Light & Lighting
摘 要:在荧光灯(FL)管中,人们凭借经验发现了一种全新的电子源,它是高温氩晕空间(HTACS)。HTACS在带有微小BaO颗粒钨丝线圈的受热裸金属斑点上形成,在氩气体空间中,取自处于负电势阴极电极上HTACS的电子,向处于正电势阳极电极上的HTACS运动。在点亮FL管中,来自HTACS的流光电子在所运行ac电压处于正电势期间,辐射到裸金属斑点上,而处于负电势期间不辐射到斑点上。在采用平均50 Hz(10 ms)的ac运行过程中,钨丝线圈里受热裸金属斑点附近的受热BaO颗粒保持HTACS的温度。A new electron source,which is the high temperature Ar corona space(HTACS),has empirically found in fluorescent lamp(FL) tubes.The HTACS is formed on the heated bear metal spot in the W-filament coils with BaO small particles.The electrons that are taken from the HTACS on the cathode electrode in negative potential move on in Ar gas space toward to the HTACS on the anode electrode in positive potential.In lighted FL tubes,the streamer electrons from HTACS irradiate on the bear metal spot during the positive potential and do not irradiate on the spot of the negative potential in the operation of the ac voltage.The heated BaO particles at nearby heated bare metal spots in the W-filament coils retain the temperature of the HTACS in ac operation,even with 50 Hz(10 ms).
分 类 号:TM923.321[电气工程—电力电子与电力传动]
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