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| 大型望远系统波前检测中的波前误差修正 |
| Amend wave-front errors in measurement on the wave-front of large telescope |
| 修订日期：2005-04-11 |
| DOI： |
| 中文关键词: 大型望远系统,波前,五角棱镜,渥拉斯顿棱镜,双频激光外差干涉法,H-S波前传感器 |
| 英文关键词:large telescope,wave-front,pentagonal prism,Wollaston prism,dual-frequency laser heterodyne interference,H-S wave-front sensor |
| 基金项目:四川省科技攻关项目资助(02GG010-010) |
| 常山 曹益平 陈永权 |
| 上饶师范学院物理系，四川大学光电系，四川大学光电系 江西上饶334001，四川大学光电系，四川成都610064，四川成都610064，四川成都610064 |
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| 中文摘要: |
| 在大型望远系统的波前检测中,固定着五角棱镜的运动平台沿并非严格平面的导轨平台移动时,五角棱镜会发生微偏转产生扫描激光束转向的波前误差。用渥拉斯顿棱镜型双频激光干涉仪实时测量五角棱镜的运动误差,计算扫描激光束入射望远系统子孔径时的波前误差,修正此波前误差得到子孔径范围内望远系统自身的波前。 |
| 英文摘要: |
| During the wave-front testing of a large aperture telescope,when the motional platform sit on a pentagonal prism moves on the guide platform which is no all strict plane,the pentagonal prism can cause a tiny deflection and generate light turning wave-front errors of scanning laser.When kinetic errors of the pentagonal prism can be measured by a dual-frequency laser interferometer used a Williston prism,the wave-front errors of scanning laser through every sub-aperture can be calculated and amended to gain the wave-front errors of every sub-aperture of the large telescope. |
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