Thermal/structural/optical integrated design for optical sensor mounted on unmanned aerial vehicle

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 动态光学成像研究室

	Thermal/structural/optical integrated design for optical sensor mounted on unmanned aerial vehicle
	Zhang, Gaopeng1 ; Yang, Hongtao1,2 ; Mei, Chao1 ; Wu, Dengshan 1; Shi, Kui1
	2016
会议名称	photoelectronic-technology-committee conference
会议日期	2016-11-15
会议地点	peoples r china
关键词	Thermal/structural/optical integrated optical design optical window aerodynamic heat finite element analysis unmanned aerial vehicle
卷号	9796
通讯作者	zhang, gp (reprint author), chinese acad sci, xian inst opt & precis mech, xian 710119, peoples r china.
英文摘要	with the rapid development of science and technology and the promotion of many local wars in the world, altitude optical sensor mounted on unmanned aerial vehicle is more widely applied in the airborne remote sensing, measurement and detection. in order to obtain high quality image of the aero optical remote sensor, it is important to analysis its thermal- optical performance on the condition of high speed and high altitude. especially for the key imaging assembly, such as optical window, the temperature variation and temperature gradient can result in defocus and aberrations in optical system, which will lead to the poor quality image. in order to improve the optical performance of a high speed aerial camera optical window, the thermal/structural/optical integrated design method is developed. firstly, the flight environment of optical window is analyzed. based on the theory of aerodynamics and heat transfer, the convection heat transfer coefficient is calculated. the temperature distributing of optical window is simulated by the finite element analysis software. the maximum difference in temperature of the inside and outside of optical window is obtained. then the deformation of optical window under the boundary condition of the maximum difference in temperature is calculated. the optical window surface deformation is fitted in zernike polynomial as the interface, the calculated zernike fitting coefficients is brought in and analyzed by codev optical software. at last, the transfer function diagrams of the optical system on temperature field are comparatively analyzed. by comparing and analyzing the result, it can be obtained that the optical path difference caused by thermal deformation of the optical window is 138.2 nm, which is under pv <= 1/4 lambda. the above study can be used as an important reference for other optical window designs.
收录类别	EI ; ISTP
产权排序	1
会议录	selected papers of the photoelectronic technology committee conferences held november 2015
会议录出版者	spie-int soc optical engineering
会议录出版地	bellingham
学科主题	engineering, electrical & electronic ; optics
语种	英语
ISSN号	0277-786x
ISBN号	978-1-62841-881-1
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/28318]
专题	西安光学精密机械研究所_动态光学成像研究室
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Gaopeng,Yang, Hongtao,Mei, Chao,et al. Thermal/structural/optical integrated design for optical sensor mounted on unmanned aerial vehicle[C]. 见:photoelectronic-technology-committee conference. peoples r china. 2016-11-15.