Fast steering mirror system connected with universal flexible hinge in high-precision aim-stabilization system

A technology of flexible hinge connection and mirror, which is applied in the direction of optical components, optics, instruments, etc., can solve the problems of complex transmission of mechanisms, reduction of structural volume and weight, and large moment of inertia, so as to reduce costs, reduce moment of inertia and power consumption Effect

Active Publication Date: 2017-12-08
西安应用光学研究所
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Problems solved by technology

The disadvantage is that the mechanism transmission is more complicated and the moment of inertia is large
The advantage of this solution is that the four voice coil motors are symmetrically distributed, the driving structure is uniform and stable, and the mirror has no frame, which reduces the volume and weight of the structure; the disadvantage is that the number of voice coil motors is too large, which increases the output power of the system and Cost of production
The disadvantage is that the four voice coil motors occupy the axial edge position, and the sensor is installed on the inner side of the axis near the center, so the measurement accuracy is limited to a certain extent

Method used

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  • Fast steering mirror system connected with universal flexible hinge in high-precision aim-stabilization system
  • Fast steering mirror system connected with universal flexible hinge in high-precision aim-stabilization system
  • Fast steering mirror system connected with universal flexible hinge in high-precision aim-stabilization system

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Embodiment Construction

[0022] The two-degree-of-freedom FSM system proposed by the present invention not only needs to ensure a certain driving ability, so that the mirror can achieve a certain angle of deflection, but also needs to control the weight of the system, reduce the moment of inertia, and reduce the cost from an economic point of view. This solution uses a large-diameter reflector with an optical diameter of Φ100mm; a linear voice coil motor is used as a motor to drive the reflector to deflect at high frequency in two degrees of freedom; a grating micrometer is used as an angular position sensor to read the angular position of the reflector in real time and feed back to the FSM system to realize closed-loop control of the position loop; the universal flexible hinge at the center can support the deflection of the mirror at any angle, and the arc-shaped flexible hinges distributed around can support the straight line of the voice coil motor and grating micrometer sports. The FSM system stru...

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Abstract

The present invention provides a fast steering mirror system connected with a universal flexible hinge in a high-precision aim-stabilization system. A set of voice coil motors are taken as drivers to drive the high-frequency motion of a steering mirror; a set of optical grating micrometers are taken as angular position sensors to perform real-time feedback of angular position signals; and a universal flexible hinge bears the scheme of two-degree-of-freedom motion of the steering mirror. The motion features of the steering mirror are employed to design the material composition and structure form of the voice coil motors and the universal flexible hinge so as to solve the compensation problem of the optical system two-level stable loop residual errors on the premise of using the least drivers and the simplest bearing mechanism.

Description

technical field [0001] The invention relates to the technical field of optical control, in particular to a fast mirror system connected by a universal flexible hinge in a high-precision aiming system. Background technique [0002] In the high-precision stabilization system, the Fast Steering Mirror (FSM) has become one of the indispensable devices. As a key device in the optical system to stabilize the beam and correct the propagation direction of the beam, it has been widely used in adaptive Optics, precision tracking, beam control and optical communication and other fields. [0003] Most of the existing fast mirrors use two sets of symmetrically distributed voice coil motors (two voice coil motors are respectively set on the X and Y axes in the plane of the initial installation position of the fast mirror) as the driver, which can make the mirror evenly distributed The driving force, but the corresponding structure is more complicated, and the load output power consumptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/08
Inventor 赵磊纪明胥青青郝利锋高雅马优恒赵振海李广良王虎王小齐李晶娣王佳梁晓东姚林海杨永安慕巍
Owner 西安应用光学研究所
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