XU Xin-hang, GAO Yun-guo, YANG Hong-bo etc. Large-diameter fast steering mirror on rigid support technology for dynamic platform[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 117-124
XU Xin-hang, GAO Yun-guo, YANG Hong-bo etc. Large-diameter fast steering mirror on rigid support technology for dynamic platform[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 117-124 DOI: 10.3788/OPE.20142201.0117.
Large-diameter fast steering mirror on rigid support technology for dynamic platform
To adapting to the execrable working conditions of a dynamic platform
a large-diameter Fast Steering Mirror(FSM) with a rigid support structure was designed. Firstly
the lightweight reflector
actuators
angle measurement elements
and the support structure of FSM system were designed and selected on the basis of the applied requirement of a vehicle theodolite for FSMs respectively. Then
the reflector was lightweighted and the mode of support base was analyzed by finite element method. The moving parts of the FSM were connected with static parts by a spherical hinge and its main loads were carried out by the support base through the hinge indirectly. The design allows the FSM to bear large loads and to be suitable for the poor working conditions. Finally
the control system of FSM was constituted
and its control bandwidth and pointing precision were tested. The test result shows that the control bandwidth is 67 Hz
moreover
its pointing precisions for azimuth and pitching are 1.0″
and 1.1″
respectively. These data prove that the control system is stable and practical and can satisfy application requirements of vehicle platforms.
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references
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