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中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
[ "李玉霞(1987-),女,山东菏泽人,硕士,助理研究员, 2008于西安电子科技大学获得学士学位,2012年于西安交通大学获得硕士学位,主要从大望远镜精密跟踪及主动光学位置控制方面的研究。E-mail: lyx26691023@163.com" ]
收稿日期:2020-08-13,
修回日期:2020-10-14,
纸质出版日期:2021-04-15
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李玉霞,王帅,王建立等.地平主焦点式大视场望远镜的双电机消旋系统[J].光学精密工程,2021,29(04):749-762.
LI Yu-xia,WANG Shuai,WANG Jian-li,et al.Dual-motor de-rotator system of prime focus alt-azimuth telescope with large field of view[J].Optics and Precision Engineering,2021,29(04):749-762.
李玉霞,王帅,王建立等.地平主焦点式大视场望远镜的双电机消旋系统[J].光学精密工程,2021,29(04):749-762. DOI: 10.37188/OPE.20212904.0749.
LI Yu-xia,WANG Shuai,WANG Jian-li,et al.Dual-motor de-rotator system of prime focus alt-azimuth telescope with large field of view[J].Optics and Precision Engineering,2021,29(04):749-762. DOI: 10.37188/OPE.20212904.0749.
大口径大视场地平式望远镜长时间曝光时,主焦点探测器会由于地球自转产生像旋,即视场中除中心外其余星体均绕视场中心旋转,进而导致目标不能正确提取与观测。为消除图像旋转的影响,某大口径大视场望远镜的消旋跟踪精度需小于5″。本文根据星体像旋原理对主焦点探测器像旋的位置特性和速度特性进行系统分析及实验验证,提出采用双电机驱动消间隙消旋机构进行消旋,利用复合电流指令控制方法消间隙并进行控制。实验结果表明:像旋特性符合消旋公式,测量误差不超过2%。最终在低速15 (″)/s及高速170 (″)/s时消旋机构的跟踪精度小于1″,进行高变速切换即7.86°sin(2π×0.5
t
)时,控制精度仍然小于1″,采用双电机消间隙控制方法可有效提高系统的稳定性和精度。
Owing to the Earth's rotation, image rotation always appears on the primary focus detector during the long exposure of Alt-Az telescopes with large aperture and wide field of view. This implies that except for the central point, other stars rotate around the center of the field of view; thus the target cannot be accurately identified and observed. To eliminate the image rotation, the de-rotator tracking error of a telescope with a large aperture and wide field of view should be less than 5″. The position and velocity of the image rotation of the primary-focus detector were analyzed and verified based on the star rotation principle. Subsequently, a dual-motor driving de-rotator system was designed, where the clearance of the mechanism was removed by the recombination current command. The experimental results indicate that the image rotation characteristics are consistent with the expression of image rotation, and the measurement error is less than 2%. The dual-motor diving de-rotator system can improve the stability and accuracy of the tracking system; thus the tracking accuracy of the de-rotator mechanism can be less than 1″ both at a low velocity of 15 (″)/s and at a high velocity of 170 (″)/s. In addition, the tracking error remains less than 1 arcsec when the de-rotator operated at a variable and high velocity of 7.86°sin(2π×0.5
t
).
BARBOZA S , POTT J U , ROHLOFF R R , et al . Design of a large image derotator for the E-ELT instrument MICADO [C]. Ground-based and Airborne Instrumentation for Astronomy VI. Edinburgh : SPIE , 2016 , 9908 : 99089 H-1-14.
罗秀娟 , 刘辉 , 张羽 , 等 . 地球同步轨道暗弱目标地基光学成像技术综述 [J]. 中国光学 , 2019 , 12 ( 4 ): 753 - 766 .
LUO X J , LIU H , ZHANG Y , et al . Review of ground-based optical imaging techniques for dim GEO objects [J]. Chinese Optics , 2019 , 12 ( 4 ): 753 - 766 . (in Chinese)
NEILL D R , SNEED R , DAWSON J , et al . Baseline design of the LSST hexapods and rotator [J]. SPIE , 2014 , 9151 : 91512 B-1-16.
ADRIANOG , MANUEL G , P VHECTOR , et al . A new telescope control system for the Telescopio Nazionale Galileo: I –derotators [J].
JEREMRE B , LAURENT J , ONURK , et al . Design of a derotator for the 4 m DAG telescope [J]. SPIE , 2016 , 9908 : 1 - 7 .
柳光乾 , 付玉 , 程向明 . 1米太阳望远镜光谱仪像旋转及消旋控制 [J]. 天文研究与技术 , 2012 , 9 ( 1 ): 86 - 92 .
LIU G Q , FU Y , CHENG X M . Image-field rotation and control of counter rotation for the spectrograph of the 1m solar telescope of the Yunnan observatory [J]. Astronomical Research & Technology , 2012 , 9 ( 1 ): 86 - 92 . (in Chinese)
鞠青华 , 李语强 , 熊耀恒 . 1 . 2 m地平式望远镜视场旋转角的理论计算 [J]. 天文研究与技术 , 2009, 6 ( 1 ): 28 - 35 .
JU Q H , LI Y Q , XIONG Y H . Theoretical calculation of the field-of-view rotation angles for the 1.2 m altazimuth telescope in the Yunnan observatory [J]. Astronomical Research & Technology , 2009 , 6 ( 1 ): 28 - 35 . (in Chinese)
孙丽娜 , 汪永阳 , 戴明 , 等 . 航空光电成像消旋电视数字控制器 [J]. 光学 精密工程 , 2007 , 15 ( 8 ): 1300 - 1304 .
SUN L N , WANG Y Y , DAI M , et al . Digital controller for aerial camera with despun control [J]. Opt. Precision Eng. , 2007 , 15 ( 8 ): 1300 - 1304 . (in Chinese)
王岱 , 李晓燕 , 吴钦章 . 某光测设备上消像旋的设计 [J]. 光电工程 , 2012 , 39 ( 1 ): 108 - 112 .
WANG D , LI X Y , WU Q ZH . Design of eliminating image rotation on opto-electronic imaging tracking and measuring device [J]. Opto-Electronic Engineering , 2012 , 39 ( 1 ): 108 - 112 . (in Chinese)
程景全 . 天文望远镜原理和设计 [M]. 南京 : 南京大学出版社 , 2020 .
CHENG J Q . The Principles and Design of Astronomical Telescope [M]. Nanjing : Nanjing University Press , 2020 . (in Chinese)
郭新胜 , 周仁魁 , 谭名栋 , 等 . 光学消像旋高精度位置控制系统的算法与实现 [J]. 光子学报 , 2011 , 40 ( 12 ): 1776 - 1779 .
GUO X SH , ZHOU R K , TAN M D , et al . Algorithm and realization for optical de-rotation high-precision position control system [J]. Acta Photonica Sinica , 2011 , 40 ( 12 ): 1776 - 1779 . (in Chinese)
蒋佶松 , 姜爱民 . AIMS太阳望远镜中像旋对稳像精度的影响分析 [J]. 天文研究与技术 , 2020 , 17 ( 3 ): 376 - 383 .
JIANG J S , JIANG A M . The influence of image rotation on accuracy of stabilization system of AIMS solar telescope [J]. Astronomical Research & Technology , 2020 , 17 ( 3 ): 376 - 383 . (in Chinese)
张桢君 , 王建成 , 程向明 , 等 . 多功能天文经纬仪光轴指向变化实测与修正 [J]. 光学 精密工程 , 2019 , 27 ( 11 ): 2321 - 2329 .
ZHANG ZH J , WANG J CH , CHENG X M , et al . Measurement and calibration of optical axis changes for multi-function astronomical theodolite [J]. Opt. Precision Eng. , 2019 , 27 ( 11 ): 2321 - 2329 . (in Chinese)
刘先一 , 张志利 , 周召发 , 等 . 基于恒星像点轨迹的星图填补 [J]. 光学 精密工程 , 2019 , 27 ( 5 ): 1229 - 1235 .
LIU X Y , ZHANG ZH L , ZHOU ZH F , et al . Star image filling based on stellar image point trajectory [J]. Opt. Precision Eng. , 2019 , 27 ( 5 ): 1229 - 1235 . (in Chinese)
冯锦平 , 马文礼 , 黄金龙 . 望远镜双电机驱动消齿隙的动力学设计 [J]. 光电工程 , 2009 , 36 ( 11 ): 64 - 69 .
FENG J P , MA W L , HUANG J L . Anti-backlash research of telescopes driven by dual-bias motors using dynamic method [J]. Opto-Electronic Engineering , 2009 , 36 ( 11 ): 64 - 69 . (in Chinese)
MANCINI D . VST project: drive system design and strategies for performance optimization [C]. Astronomical Telescopes and Instrumentation. Proc SPIE 4837 , Large Ground-Based Telescopes. Waikoloa: SPIE , 2003 , 4837 : 389 - 400 .
HAMMERSCHLAG R H , BETTONVIL F C M , JÄGERS A P L , et al . Large bearings with incorporated gears, stiffnesshigh, and precision for the Swedish Solar Telescope (SST) on La Palma [C]. SPIE Astronomical Telescopes+Instrumentation. Proc SPIE 6273 , Optomechanical Technologies for Astronomy. Orlando: SPIE , 2006 , 6273 : 627315 .
隋志刚 . 基于双电机消隙的六自由度机械手结构设计与研究 [D]. 沈阳 : 东北大学 , 2017 .
SUI ZH G . The Design and Study of 6 Degree of Freedom Manipulator Structure Based on the Dual Motor Anti-backlash [D]. Shenyang : Northeastern University , 2017 . (in Chinese)
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