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冷端温度对无极灯253.7nm共振谱线的影响
作者姓名:Dong JY  Zhang GX  Wang CQ
作者单位:清华大学电机工程与应用电子技术系;北京市电力公司
基金项目:国家自然科学基金项目(50477005)资助
摘    要:无极灯是一种长寿命、低汞害、无频闪的新型电光源,其光效在很大程度上取决于253.7nm共振谱线的辐射效率。通过原子发射光谱分析,实验研究了冷端温度对253.7nm共振谱线的影响规律。研究发现,253.7nm共振谱线的辐射效率随冷端温度变化近似呈正态分布,即无极灯工作存在一个最佳冷端温度。运用气体放电理论对实验结果进行了定性分析,对无极灯光效的提高具有指导意义。

关 键 词:无极灯  冷端温度  共振谱线  气体放电  光效

Influence of cold spot temperature on 253.7 nm resonance spectra line of electrodeless discharge lamps
Dong JY,Zhang GX,Wang CQ.Influence of cold spot temperature on 253.7 nm resonance spectra line of electrodeless discharge lamps[J].Spectroscopy and Spectral Analysis,2012,32(1):50-52.
Authors:Dong Jin-yang  Zhang Gui-xin  Wang Chang-quan
Institution:Department of Electrical Engineering, Tsinghua University, Beijing 100084, China. dongjinyang007@163.com
Abstract:As a kind of new electric light source, electrodeless discharge lamps are of long life, low mercury and non-stroboscopic light. The lighting effect of electrodeless discharge lamps depends on the radiation efficiency of 253.7 nm resonance spectra line to a large extent. The influence of cold temperature on 253.7 nm resonance spectra line has been studied experimentally by atomic emission spectral analysis. It was found that the radiation efficiency of 253.7 nm resonance spectra line is distributed in a nearly normal fashion with the variation of cold spot temperature, in other words, there is an optimum cold spot temperature for an electrodeless discharge lamp. At last, the results of experiments were analyzed through gas discharge theory, which offers guidance to the improvement of lighting effect for electrodeless discharge lamps.
Keywords:Electrodeless discharge lamp  Resonance spectra line  Cold spot temperature  Gas discharge  Lighting effect
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