Design of three-band optical system used in corona detection

LIU Jian-zhuo; WANG Xue-jin; HUANG Jian-bo; GUO Bang-hui; QU Feng; WANG Jian; FANG Wei; SUN

doi:10.3788/OPE.20111906.1228

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Design of three-band optical system used in corona detection

Article | 更新时间：2020-08-12

- Design of three-band optical system used in corona detection
- Optics and Precision Engineering Vol. 19, Issue 6, Pages: 1228-1234(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,中国,130033
  2. 中国科学院研究生院北京,100039
  3. 第二炮兵工程设计研究院北京,100011
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111906.1228
  CLC： TN23;TB971
- Received：22 November 2010，
  
  Revised：15 January 2011，
  
  Published Online：25 June 2011，
  
  Published：25 June 2011
- 稿件说明：
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刘建卓, 王学进, 黄剑波, 郭帮辉, 曲锋, 王健, 方伟, 孙强. 三波段电晕检测光学系统的设计[J]. 光学精密工程, 2011,19(6): 1228-1234

LIU Jian-zhuo, WANG Xue-jin, HUANG Jian-bo, GUO Bang-hui, QU Feng, WANG Jian, FANG Wei, SUN Qiang. Design of three-band optical system used in corona detection[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1228-1234
刘建卓, 王学进, 黄剑波, 郭帮辉, 曲锋, 王健, 方伟, 孙强. 三波段电晕检测光学系统的设计[J]. 光学精密工程, 2011,19(6): 1228-1234 DOI： 10.3788/OPE.20111906.1228.

LIU Jian-zhuo, WANG Xue-jin, HUANG Jian-bo, GUO Bang-hui, QU Feng, WANG Jian, FANG Wei, SUN Qiang. Design of three-band optical system used in corona detection[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1228-1234 DOI： 10.3788/OPE.20111906.1228.

摘要

为了对电晕放电进行全天候的检测

设计了一套包含日盲紫外、可见光和长波红外的三波段电晕检测光学系统。为了减小系统体积

提高系统性能

日盲紫外和可见光波段采用共光路结构;长波红外段采用独立光路

利用衍射面特殊的色散特性和非球面技术对系统进行单色像差和色差校正

减少系统的镜片数量。系统采用单镜片调焦设计来保证其在-40~60 ℃内清晰成像。对设计的系统进行了像质评价

结果表明

在空间频率60 lp/mm处

20 ℃时全视场内日盲紫外波段系统的MTF>0.37

可见光波段系统的MTF>0.35;在空间频率20 lp/mm处

全视场内长波红外波段系统的MTF>0.6

3个波段均能清晰成像

满足电晕检测的要求。

Abstract

In order to detect corona discharge in all weather situations

a three-band optical system worked at three bands of the solar blind UV

visible and the long infrared was designed for the corona detection. To reduce the system volume and improve the performance merits

a co-lens system was used for both the solar blind UV and visible bands

and an independent lens system containing aspheric surfaces and diffraction surface was adopted for the long infrared band to correct monochromatic and chromatic aberrations. Furthermore

the focusing system was designed with a single lens to ensure an excellent imaging in the temperature from -40 ℃ to 60 ℃. The image quality of the system was evaluated

and it is shown that at the temperature of 20 ℃

the MTF at the spatial frequency of 60 lp/mm is greater than 0.37 in the solar blind UV

and greater than 0.35 in the visible band for the whole fields of view; the MTF at the spatial frequency of 20 lp/mm is greater than 0.6 in the long infrared band for the whole fields of view. These results indicate that the system has excellent imaging characteristics at all three bands

and can be used in the detection of corona discharge in all weather situations.

关键词

Keywords

references

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