李慧, 樊宏杰, 陈前荣, 邹前进. 运动平移台静态指向误差建模、测试与修正[J]. 红外与激光工程, 2021, 50(12): 20210161. DOI: 10.3788/IRLA20210161
引用本文: 李慧, 樊宏杰, 陈前荣, 邹前进. 运动平移台静态指向误差建模、测试与修正[J]. 红外与激光工程, 2021, 50(12): 20210161. DOI: 10.3788/IRLA20210161
Li Hui, Fan Hongjie, Chen Qianrong, Zou Qianjin. Modeling, test and correction of static pointing error for remotion platform[J]. Infrared and Laser Engineering, 2021, 50(12): 20210161. DOI: 10.3788/IRLA20210161
Citation: Li Hui, Fan Hongjie, Chen Qianrong, Zou Qianjin. Modeling, test and correction of static pointing error for remotion platform[J]. Infrared and Laser Engineering, 2021, 50(12): 20210161. DOI: 10.3788/IRLA20210161

运动平移台静态指向误差建模、测试与修正

Modeling, test and correction of static pointing error for remotion platform

  • 摘要: 针对运动平移台检测中方位/俯仰轴旋转过程引起的负载光轴偏移量指标超差的问题,在全面分析其误差源基础上提出了一种误差测试与补偿方案,基于多体系统理论建立了平移台负载的光轴指向偏差修正模型,设计了指向偏差测试实验,采用实测数据辨识得到了修正模型中的未知参数。经过补偿后仿真与实测验证:俯仰平台旋转引起的光轴方位指向偏移量由176.1″减小到1″,方位平台旋转引起的光轴俯仰方向指向精度由18″提高至9″,满足了工程使用要求。该误差测试与修正方法已成功应用于装备的实际检测。

     

    Abstract: According to the axis offset, arosed by rotation of azimuth or pitching axis, was biggish than index in the test of certain remotion platform, the error sources were analyzed comprehensively. And then, a kind of error test and compensation plan was proposed based on this, multi-body kinematics theory was used to setup correction model of axis pointing deviation of the remotion platform. Subsequently, the test experiment of pointing deviation was designed to gain the actual pointing error, the unknown parameter of the correction model were obtained by measured data. Finally, model simulation and experimental test results after compentation both show that the horizontal axis offset error has been reduced from 176.1″ to 1″, the vertical axis pointing accuracy has been improved from 18″to 9″ after correction of error sources, and the error test and correction method has been successfully used in the actual test of the remotion platform, which satisfied the normal requirements.

     

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