Electromagnetic radiation test of high-power TEA CO2 laser and its shielding cabin design

doi:10.3788/OPE.20111905.0983

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Electromagnetic radiation test of high-power TEA CO₂ laser and its shielding cabin design

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- Electromagnetic radiation test of high-power TEA CO₂ laser and its shielding cabin design
- Optics and Precision Engineering Vol. 19, Issue 5, Pages: 983-991(2011)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2. 中国科学院研究生院, 北京100049
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111905.0983
  CLC： TN248.2
- Received：16 August 2010，
  
  Revised：27 October 2010，
  
  Published Online：26 May 2011，
  
  Published：26 May 2011
- 稿件说明：
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葛欣宏, 郭立红, 孟范江, 于洪君, 王思雯, 王鹤淇. 大功率TEA CO2激光器的电磁辐射测试及屏蔽方舱设计[J]. 光学精密工程, 2011,19(5): 983-991

GE Xin-hong, GUO Li-hong, MENG Fan-jiang, WANG Si-wen, WANG He-qi. Electromagnetic radiation test of high-power TEA CO2 laser and its shielding cabin design[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 983-991
葛欣宏, 郭立红, 孟范江, 于洪君, 王思雯, 王鹤淇. 大功率TEA CO2激光器的电磁辐射测试及屏蔽方舱设计[J]. 光学精密工程, 2011,19(5): 983-991 DOI： 10.3788/OPE.20111905.0983.

GE Xin-hong, GUO Li-hong, MENG Fan-jiang, WANG Si-wen, WANG He-qi. Electromagnetic radiation test of high-power TEA CO2 laser and its shielding cabin design[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 983-991 DOI： 10.3788/OPE.20111905.0983.

摘要

为了抑制大功率TEA CO

激光器对其他电子设备的电磁干扰

在测量并分析激光器的近场电磁辐射特性的基础上

设计了电磁屏蔽方舱并进行了实验验证。根据大功率TEA CO

激光器的工作原理

分析了激光器工作过程中的主要电磁辐射源;结合电磁辐射理论与激光器的实际结构

确定了电磁辐射测试的主要部位为火花开关、主回路、激光器出光口处。分析测试结果

得到了激光器近场不同方位的主要辐射频率及辐射场特性

据此设计了屏蔽方舱

并在屏蔽方舱门处进行了屏蔽效能验证。结果表明:大功率TEA CO

激光器在近场区的电磁辐射源为磁场源

据此设计的屏蔽方舱其屏蔽效能整体达到40 dB以上

部分频率的屏蔽效能达到60 dB以上。

Abstract

In order to suppress the electromagnetic interference of a high-power TEA CO

laser for the other electronic equipment

the near-field electromagnetic radiation characteristics of the laser were measured and analyzed

and an electromagnetic shielding cabin was designed and validated. According to the work principle of the high-power TEA CO

laser

the main electromagnetic radiation sources of the laser in working process were analyzed

then it points out that the main part of electromagnetic radiation tests is the spark switch

main circuit and the part of light out by combing of laser electromagnetic radiation theory and the actual structure. After analysis of test results

the main frequencies of laser radiation in different directions were obtained. Based on the above

the shielding cabin was designed

and its shielding effectiveness was verified near the cabin's door. The results show that the electromagnetic radiation of the high-power TEA CO

laser is magnetic field source in the near-field zone

and the shielding efficiency is 40 dB for the whole frequencies and more than 60 dB for some special frequencies.

关键词

Keywords

references

BHATIA M S, KUMAR G. On the EMI potential of various laser types .IEEE Proceedings of the International Conference on Electromagnetic Interference and Compatibility, 2002:3-5.[2] BHATIA M S, MADAN V K, DONGARE A S, et al.. Mapping of radiation field from a discharge laser head .IEEE Proceedings of the International Conference on Electromagnetic Interference and Compatibility, 2002:6-10.[3] GAYEN A, DAS B N, PODDAR D R. Study of electromagnetic interference from a high power copper vapor laser .IEEE Proceedings of the International Conference on Electromagnetic Compatibility, 2005:847-850.[4] GAYEN A,DAS B N,PODDAR D R. Study of electromagnetic interference from a high power copper vapor laser . IEEE Electromagnetic Compatibility, 2005:847-850.[5] 孟范江,郭立红,杨贵龙,等. 大功率TEA CO2激光器系统中电磁干扰的抑制[J]. 强激光与粒子束,2008,20(2):177-182. MENG F J,GUO L H,YANG G L.Suppression of electromagnetic interference in high power TEA CO2 laser system[J].High Power Laser and Particle Beams,2008,20(2):177-182.(in Chinese)[6] 孟范江,杨贵龙,李殿军. 大功率TEA CO2激光系统的电磁兼容设计[J]. 中国光学与应用光学,2009,2(3):236-241. MENG F J,YANG G L,LI D J. EMC design of high power TEA CO2 laser system[J]. Chinese Journal of Optics and Applied Optics,2009,2(3):236-241.(in Chinese)[7] 李念峰,郭立红,罗艳春. 车载高功率激光器系统的EMC设计[J]. 武汉理工大学学报,2008,30(4):149-152. LI N F,GUO L H,LUO Y CH.EMC design of vehicular high power laser system[J]. Journal of Wuhan University of Technology,2008,30(4):149-152.(in Chinese)[8] 李殿军,杨贵龙,谢冀江,等. 9.3 m脉冲CO2激光倍频实验[J]. 光学精密工程,2009,17(11):2684-2691. LI D J,YANG G L,XIE J J.Experiments of second harmonic generation of 9.3 m pulsed CO2 lasers[J].Opt. Precision Eng.,2009,17(11):2684-2691.(in Chinese)[9] 王思雯,郭立红,赵帅,等. 高功率CO2激光对远场HgCdTe探测器的干扰实验[J]. 光学精密工程,2010,18(4):798-804. WANG S W,GUO L H,ZHAO S. Experiments of high-power CO2 laser disturbance to far-field HgCdTe detectors[J]. Opt. Precision Eng.,2010,18(4):798-804.(in Chinese)[10] 黄大庆,李勃. 无人机电磁兼容传导与辐射测试项目剪裁法[J]. 光学精密工程,2009,17(2):341-345. HUANG D Q,LI B.Novel tailoring method for conducting and radiating electromagnetic compatibility testing of unmanned aerial vehicle[J]. Opt. Precision Eng., 2009,17(2):341-345.(in Chinese)

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