光电工程
光電工程
광전공정
Opto-Electronic Engineering
2015年
9期
60-65
,共6页
柴方茂%樊延超%辛宏伟%鲍赫%李志来
柴方茂%樊延超%辛宏偉%鮑赫%李誌來
시방무%번연초%신굉위%포혁%리지래
航天相机%离轴TMA%离焦补偿机构%检测
航天相機%離軸TMA%離焦補償機構%檢測
항천상궤%리축TMA%리초보상궤구%검측
aerospace camera%off-axis TMA%defocus offsetting mechanism%detection
为了弥补离焦产生的影响,本文从离轴 TMA 航天测绘相机的工程实际出发,提出了一种基于滚珠丝杠及连杆的离焦补偿机构,分析了机构的设计需求,确定了机构的调节位置,对机构进行了结构设计、精度设计可靠性分析以及性能检测.机构的X轴晃动为±2.7″,Y轴晃动为±3.3″,曲线拟合残差小于2μm,抽检最大误差为5μm,机构具备良好的自锁性能.性能检测结果表明该机构综合性能良好,适合在离轴TMA航天测绘相机中使用.
為瞭瀰補離焦產生的影響,本文從離軸 TMA 航天測繪相機的工程實際齣髮,提齣瞭一種基于滾珠絲槓及連桿的離焦補償機構,分析瞭機構的設計需求,確定瞭機構的調節位置,對機構進行瞭結構設計、精度設計可靠性分析以及性能檢測.機構的X軸晃動為±2.7″,Y軸晃動為±3.3″,麯線擬閤殘差小于2μm,抽檢最大誤差為5μm,機構具備良好的自鎖性能.性能檢測結果錶明該機構綜閤性能良好,適閤在離軸TMA航天測繪相機中使用.
위료미보리초산생적영향,본문종리축 TMA 항천측회상궤적공정실제출발,제출료일충기우곤주사강급련간적리초보상궤구,분석료궤구적설계수구,학정료궤구적조절위치,대궤구진행료결구설계、정도설계가고성분석이급성능검측.궤구적X축황동위±2.7″,Y축황동위±3.3″,곡선의합잔차소우2μm,추검최대오차위5μm,궤구구비량호적자쇄성능.성능검측결과표명해궤구종합성능량호,괄합재리축TMA항천측회상궤중사용.
In order to compensate the effect of off-axis TMA aerospace mapping camera defocus from engineering practice side, one kind of defocus offsetting compensation mechanism is proposed based on ball screw and rod. The design requirement is analyzed, the adjustment position is determined, and the reliability design and performance indicator detection is carried out. The oscillation angel along the X axis is ±2.7″, the oscillation angel along Y axis is ±3.3″, the residual error is less than 2μm, the maximum error of sampling is 5μm, and the mechanism has good self-locking performance, which could be used in off-axis TMA aerospace mapping camera.
