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通过测量Ne Hg阴极辉光放电灯 (没有正柱区 ) ,作者发现随着频率的提高 ,灯的效率降低。通过对等离子体的测量发现了其中的原因。在等离子体中 ,有两组电子 ,一组电子由第一类电子组成 ,它们在高频工作时的峰值能量高于在低频工作时的峰值能量 ,另一组电子在高频工作时的能量低于低频工作时的能量。高频工作时有一段时间内第一类电子不存在。由此作者得出灯效率降低的原因 :( 1)高频工作时能量从第一类电子向第二类电子转移所需的时间比低频工作时短 ,因为高频时有一段时间内没有第一类电子存在 ;( 2 )高频工作比低频时的离子化损失大 ,因为第一类电子的峰值能量较高。最后作者试验了两种具有正柱区的Ne Hg和Ar Hg灯的阴极辉光特性 ,并与没有正柱区的Ne Hg灯比较 ,证实了这三种灯的阴极辉光特性没有差别。从这些测量中可以得出 ,尽管高频工作时阴极位降的有效值低于低频工作时的有效值 ,但峰值较高
By measuring the Ne Hg cathode glow discharge lamp (without the positive column region), the authors found that lamp efficiency diminished as the frequency increased. The reason for this is found by measuring the plasma. In plasma, there are two sets of electrons, one set of electrons consisting of the first type of electrons, their peak energy at high frequency work is higher than the peak energy at low frequency work, the other group of electrons in high frequency work energy Lower than the energy of low-frequency work. The first type of electrons do not exist for some time during high-frequency operation. The authors therefore come to the conclusion that the lamp efficiency is reduced: (1) the time required for energy transfer from the first type of electrons to the second type of electrons at high frequency is shorter than that at low frequency, because there is no A class of electrons exists; (2) High-frequency work has a greater loss of ionization than low frequencies because of the higher peak energies of the first type of electrons. Finally, the authors tested the cathode glow characteristics of two Ne Hg and Ar Hg lamps with positive column regions and compared them with Ne Hg lamps without positive column regions, confirming that there is no difference in the cathode glow characteristics of the three lamps. From these measurements, it can be concluded that although the effective value of cathode drop during high frequency operation is lower than the effective value during low frequency operation, the peak value is higher