
Proceedings Paper
Control system for 6 degree of freedom electric platform of sub-mirror in the giant telescopeFormat | Member Price | Non-Member Price |
---|---|---|
$17.00 | $21.00 |
Paper Abstract
Giant telescopes with extremely large aperture widely adopt segmented mirror active optics technology, so active
adjustment mechanism of displacement is one of the critical techniques. A novel 6-DOF mechanism featuring structural
compactness in size and partial decoupling in degrees has been proposed as a potential supporting mechanism for
sub-mirrors. It is of important significance to carry out profound study on the control strategy for large scale use of the
6-DOF adjustment mechanism in a highly segmented giant telescope. This paper presents first the control system design
for a prototype of the 6-DOF mechanism and further the control strategy modeling for the future large-scale application
of the mechanism in giant telescopes. The control system implemented for the prototype mechanism has been
successfully tested by photogrammetry at lab. It provides closed-loop control and real-time measurement of all motors of
one 6-DOF mechanism and is proved to be a system of high precision and efficiency. Afterwards, we explore and extend
the control design of the novel 6-DOF mechanism to large-scale use in all sub-mirrors in a giant telescope. The principle,
constitution, control algorithm and realization are covered and commented. The study and experiment carried out in this
paper are also informative for the control of parallel manipulators in other industries.
Paper Details
Date Published: 13 September 2012
PDF: 7 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84505E (13 September 2012); doi: 10.1117/12.925272
Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)
PDF: 7 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84505E (13 September 2012); doi: 10.1117/12.925272
Show Author Affiliations
Aihua Li, Nanjing Institute of Astronomical Optics & Technology (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Hui Wang, Nanjing Institute of Astronomical Optics & Technology (China)
You Wang, Nanjing Institute of Astronomical Optics & Technology (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Hui Wang, Nanjing Institute of Astronomical Optics & Technology (China)
You Wang, Nanjing Institute of Astronomical Optics & Technology (China)
Dehua Yang, Nanjing Institute of Astronomical Optics & Technology (China)
Zhenchao Zhang, Nanjing Institute of Astronomical Optics & Technology (China)
Zhenchao Zhang, Nanjing Institute of Astronomical Optics & Technology (China)
Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)
© SPIE. Terms of Use
