High-stability three-field TV detection system

被引：0
|
作者：
Peng J.-W. [1 ]
Ma Y.-J. [1 ]
Chen W.-N. [1 ]
Shi K. [1 ]
Zhang G.-P. [1 ]
机构：
[1] Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2021年 / 29卷 / 07期
关键词：
Detection system; Imaging; Optical axis stability; Rotary switch; Three fields of view;
D O I：
10.37188/OPE.20212907.1559
中图分类号：
学科分类号：
摘要：
To meet the strict requirements of stability and consistency of the optical axis for the current three-field TV detection system with a photoelectric search and tracking device, a three-field TV detection system with a rotary switching mechanism was studied. Through the analysis of the system indicators, an optical system for cut-in and cut-out field of view switching was selected, and the structure of the rotary switching mechanism was presented. Based on this, a precise rotating shafting, position-limit mechanism with a powerful neodymium magnet and a high elastic plunger, and worm drive mechanism with self-locking characteristics were designed. The selection process and results of the limit mechanism and the drive mechanism were given. A method of optical axis consistency adjustment with theodolite and cross-reticle was proposed. With this design and adjustment process, a high-stability three-field TV detection system was realized. The test results show that the stability of the optical axis of the M-FOV is less than 8", and the consistency of the optical axis of the three fields of view is within 1 pixel size, which meets the indicator requirements. The results of laboratory and outdoor experiments show that the imaging quality of each field of view of the system is excellent, and the detection range is long, which can meet the requirements of use. © 2021, Science Press. All right reserved.
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页码：1559 / 1566
页数：7
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