数字摄影测量在FAST射电望远镜反射面单元测量中的应用

FAST(Five-hundred-meter Aperture Sphencal radio Telescope)射电望远镜是当前世界上最大,性能最优越的射电望远镜。由反射面单元组成的射电望远镜反射面的性能直接决定了射电望远镜的性能,因此反射面单元是射电望远镜的核心部件。反射面单元性能主要取决于反射面单元的面型精度,反射面单元面型精度的保证,必须有可靠的精度测量保证。数字摄影测量方法具有精度高、非接触测量和便携等特点。

Application of digital photogrammetry in measurement of FAST reflector unit

FAST is the largest and most excellent radio telescope in the world.The radio telescope consists of reflector unit which performance determines the performance of radio telescope.So the reflector is the core component of the radio telescope.The performance mainly depends on surface accuracy.The digital photogrammetry can ensure accuracy measurement.It has the characteristics of high precision,non-contact measurement and portability.