發(fā)布時(shí)間：2019-06-02 00:30

【摘要】：對空間離軸相機(jī)在重力載荷作用下的系統(tǒng)波像差變化進(jìn)行了集成仿真分析,同時(shí)研究了分析結(jié)果的精度。介紹了集成仿真分析技術(shù)的基本流程和關(guān)鍵技術(shù),對比分析了ZERNIKE多項(xiàng)式擬合法與形函數(shù)插值法兩種面形畸變轉(zhuǎn)換接口算法的優(yōu)劣。介紹了常用的兩種形函數(shù)構(gòu)造方法的基本原理,基于面積法構(gòu)造形函數(shù)得到了光學(xué)元件面形畸變的接口文件。最后,在相機(jī)的光機(jī)結(jié)構(gòu)裝調(diào)完畢后,對系統(tǒng)波像差在重力載荷作用下的變化進(jìn)行了測試。測試結(jié)果表明,該空間相機(jī)3個(gè)視場系統(tǒng)波像差的變化量分別為0.029 8λ(-1視場)、0.019 4λ(0視場)、0.052 3λ(+1視場),與分析結(jié)果基本吻合。3個(gè)視場分析結(jié)果的誤差分別為0.002 4λ(-1視場)、-0.000 9λ(0視場)、0.007λ(+1視場,)均小于0.01λ,滿足工程設(shè)計(jì)的要求,驗(yàn)證了集成仿真分析結(jié)果的準(zhǔn)確性。此外,通過集成分析技術(shù)定量得到了不同影響因素對系統(tǒng)波像差的影響,基于此優(yōu)化設(shè)計(jì)光機(jī)結(jié)構(gòu),改善了重力對空間相機(jī)3個(gè)視場系統(tǒng)波像差的影響。
[Abstract]:The variation of wave aberration of space off-axis camera under gravity load is analyzed by integrated simulation, and the accuracy of the analysis results is studied at the same time. This paper introduces the basic flow and key technologies of integrated simulation analysis technology, and compares and analyzes the advantages and disadvantages of ZERNIKE polynomial fitting method and shape function interpolation method. The basic principles of two commonly used form function construction methods are introduced. The interface file of optical element surface distortion is obtained by constructing shape function based on area method. Finally, after the optical structure of the camera is installed and adjusted, the variation of the system wave aberration under gravity load is tested. The test results show that the variation of wave aberration of the three field of view systems of the space camera is 0.029 8 位 (- 1 field of view), 0.019 4 位 (0 field of view) and 0.052 3 位 (1 field of view), respectively. The errors of the three field of view analysis results are 0.002 位 (- 1 field of view),-0.000 9 位 (0 field of view) and 0.007 位 (1 field of view, respectively), which meet the requirements of engineering design. The accuracy of the integrated simulation analysis results is verified. In addition, the influence of different influencing factors on the wave aberration of the system is quantitatively obtained by integrated analysis technology. based on this, the optical machine structure is optimized and the influence of gravity on the wave aberration of the three field of view system of the space camera is improved.
【作者單位】： 中國科學(xué)院長春光學(xué)精密機(jī)械與物理研究所;
【基金】：國家863高技術(shù)研究發(fā)展計(jì)劃資助項(xiàng)目(No.2009AA7020107)
【分類號】：V445.8

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