The active surface control system for the Tian Ma Telescope

被引：10

作者：

Dong, Jian ^{[1
]}

Jin, Huiliang ^{[2
]}

Ye, Qian ^{[2
]}

Shen, Zhiqiang ^{[1
]}

Liu, Qinghui ^{[1
]}

Fu, Li ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China

[2] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China

来源：

SOFTWARE AND CYBERINFRASTRUCTURE FOR ASTRONOMY IV | 2016年 / 9913卷

关键词：

active surface; surface control; actuator; metrology; FOCUS;

D O I：

10.1117/12.2230560

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Tian Ma Telescope (TM) is the largest fully steerable radio telescope in Asia. It has a primary reflector of 65-m in diameter with a shaped Cassegrain configuration. The primary reflector of the TM is an active surface with 1104 actuators for the 1008 surface panels. The panels of the telescope are divided into 18 rings, and 24 fan sections. Each section includes three sub-sections. The active surface system adopts TCP/IP Ethernet network and RS-485 bus as a dominating mode of communication. The control software works on the Windows system, and adopts the object-oriented technology. The photogrammetry and phase-coherent holography has been used to set the surface to about 0.3mm at the rigging angle. The FEM model is testing now. The Out-of-Focus holography and other techniques will be used to modify the dynamic surface deformation.

引用

页数：6

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