Efficient Radiation of Ultraviolet Rays by Pulsed Discharge

本项目得到的结果如下4.1。脉冲放电中电子温度的测量我们可以用朗缪尔探针和动态探针来估计脉冲放电中的电子温度。我们可以通过脉冲波形知道温度的不同。提高市场上荧光灯的辐射效率通过脉冲放电的方法可以提高市场上荧光灯的辐射效率，仅提高灯管效率30%左右。但包括电路损耗在内的整体效率却几乎没有提高。通过灯内稀有气体的成分和压力的改进由于电路损耗，市场上的灯的总体效率几乎没有提高。因此，我们尝试增加灯阻抗，改造稀有气体的成分和压力。当纯氩气的压力为7 tor4时，整体效率可提高15%左右。减少照明电路的损耗最好的电路是所谓的“推挽电路”，使用一个小变压器，匝比为1:3.5，电压控制直流电源。

Results obtained from this project are follwing four.1.Measurement of the electron temperature in pulsed dischargeWe could estimate the electron temperature in pulsed discharge by Langmuir probes, and that dynamic probes. And we could know differences in temperature by pulse wave forms.2. Improvement of the radiant efficiency in fluorescent lamps on the market We could improve the radiant efficiency, only lamp efficiency, in fluorescent lamps on the market about 30% by the pulsed discharge method. But the overall efficiency including circuits loss was scarecely improved.3.Improvement by the composition and the pressure of rare gases enclosed in a lampThe overall efficiency was scarecely improved for lamps on the market because of circuits loss. Accordingly we atempted to increase the lamp impedance and reformed compositions and pressures of rare gases. We got the best result and could improve the overall efficiency about 15%, when the pressure of pure Argon was 7 Torr.4.Decreasing loss of lighting circuitsThe best circuit was the so-called "push-pull circuit" using a small transformer with turn ratio 1:3.5 and voltage cotrolled DC suply.