Design of Micro-miniature Infrared Seeker with Roll-Pitch Structure

MA Junlin; XING Yan; GAO Qun; DU Jie; LIU Ying

Volume 43 Issue 5

May 2021

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Infrared Technology > 2021 > 43(5): 411-416.

MA Junlin, XING Yan, GAO Qun, DU Jie, LIU Ying. Design of Micro-miniature Infrared Seeker with Roll-Pitch Structure[J]. Infrared Technology , 2021, 43(5): 411-416.

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MA Junlin, XING Yan, GAO Qun, DU Jie, LIU Ying. Design of Micro-miniature Infrared Seeker with Roll-Pitch Structure[J]. Infrared Technology , 2021, 43(5): 411-416.

Citation:

MA Junlin, XING Yan, GAO Qun, DU Jie, LIU Ying. Design of Micro-miniature Infrared Seeker with Roll-Pitch Structure[J]. Infrared Technology , 2021, 43(5): 411-416.

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Design of Micro-miniature Infrared Seeker with Roll-Pitch Structure

Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun 130033, China

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Received Date: June 08, 2020
Revised Date: July 29, 2020

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Abstract

To meet the requirements of the micro-miniature air-to-air missile and solve the problem of not reaching full field angle, this paper presents a micro-miniature infrared seeker with roll-pitch structure, applying the integration philosophy of optical-mechanical structure and pitching shaft. Compared with the classic roll-pitch frame, this new structure combines two individual pitch shafts; additionally, the optical-mechanical structureusesonly one mechanical part, thus greatly reducing its size. Moreover, this new structure has a focus function that could improve the image quality. After structure design, we conducted thermo-mechanical coupling analysis on structure parts and lens under eight extreme conditions. The results show that the optical-mechanical structure meets the requirement of micro-miniature(80 mm), shock resistance (10g), and high low temperature test (-40℃~60℃). The simulated analysis can predict real conditions and has great guiding significance for optical-mechanical structure design.
- infrared seeker,
- roll-pitch,
- finite element,
- simulated analysis

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