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| 电容损耗对脉冲氙灯放电特性的影响 | |
| 引用本文： | 张雏,林德江,沈洪斌,徐春梅,陈晓寒.电容损耗对脉冲氙灯放电特性的影响[J].强激光与粒子束,2012,24(10):2474-2478. |
| 作者姓名： | 张雏 林德江 沈洪斌 徐春梅 陈晓寒 |
| 作者单位： | 1. 军械工程学院光学与电子工程系,石家庄,050003 2. 军械工程学院光学与电子工程系,石家庄050003;山东大学信息科学与工程学院,济南250100 3. 山东大学信息科学与工程学院,济南,250100 |
| 基金项目： | 国家自然科学基金项目(11004122) |
| 摘 要： | 研究了储能电容自身损耗对氙灯放电特性的影响，对脉冲氙灯放电回路进行了分析与改进。在实际电容自身损耗不为零的情况下，将电容等效为理想电容与损耗阻抗的串联，给出了计算氙灯放电特性的改进公式，并详细计算和分析了电容自身损耗增大情况下的氙灯放电电流和放电功率变化情况，计算结果表明:损耗增大会导致氙灯放电电流、功率峰值下降，闪光时间缩短，显著影响激光泵浦效率;电容损耗增大还会导致LC放电回路出现电容反充电现象，影响氙灯正常工作并缩短灯的寿命。实际的储能电容充放电实验证明，电容损耗增大会导致氙灯闪光的波形峰值下降、闪光时间缩短和电极溅射加剧，验证了理论分析的合理性。另外，实验证明环境因素对储能电容自身损耗的增大具有非常显著的影响。 |
| 关 键 词： | 脉冲氙灯 放电特性 电容损耗 损耗阻抗 波形峰值 闪光时间 |
| 收稿时间： | 2012/4/17 |
Effect of capacitor loss on discharging characteristics of xenon flash lamp |
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| Zhang Chu , Lin Dejiang , Shen Hongbin , Xu Chunmei , Chen Xiaohan.Effect of capacitor loss on discharging characteristics of xenon flash lamp[J].High Power Laser and Particle Beams,2012,24(10):2474-2478. | |
| Authors: | Zhang Chu Lin Dejiang Shen Hongbin Xu Chunmei Chen Xiaohan |
| Affiliation: | 1.Department of Optics and Electronic Engineering,Ordnance Engineering College,Shijiazhuang 050003,China; 2.Information and Engineering College,Shandong University,Jinan 250100,China) |
| Abstract: | The effect of storage capacitor’s loss on the discharging characteristics of the xenon flash lamp was studied, and the xenon flash lamp discharging circuit was analyzed and improved. The capacitor can be equivalent to a series of an ideal capacitor and a loss resistance. The improved formula of the xenon lamp discharging characteristics was given when actual capacitance loss is not zero, and the xenon lamp discharging current and discharging power are calculated and analyzed in detail with the increase of the capacitor loss. The results show that the increase of loss will lead to the decrease of xenon lamp discharging current and peak power and the xenon lamp flash time, and influence laser pumping efficiency. The loss will also lead to the capacitor inverse charging in LC discharging circuit; this will influence normal working of the capacitor and decrease the life of the xenon lamp. The actual energy storage capacitor charging and discharging experiments show that the increase of capacitor loss will lead to the decrease of xenon lamp light-emitting waveform peak, shortening of the flash time and increase of the electrode sputter, thus verity, the reasonableness of theoretical analysis. In addition, the experiments show that environmental factors have very significant impact on the increase of the storage capacitor loss. |
| Keywords: | xenon flash lamp discharging characteristics capacitor loss loss resistance waveform peak flash time |
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