A two-dimensional fast control mirror

Abstract

The present invention discloses a two-dimensional rapid control reflector. The two-dimensional rapid control reflector comprises a lower housing, an upper housing and a base plate. A plurality of driver sets are uniformly arranged in the lower housing; each driver set comprises one displacement amplification mechanism and one piezoelectric ceramics driver arranged on each displacement amplification mechanism; one resistance strain gage is bonded at the outer surface of each piezoelectric ceramics driver; each displacement amplification mechanism is connected with one ball head in a fastening mode; each ball head is located at the upper surface of each piezoelectric ceramics driver; each displacement amplification mechanism is connected with one rocker panel through one flexible hinge; eachrocker panel is provided with one flexible support plate; the top ends of the rocker plates are fixed with a reflector through reflector bonding blocks; and the reflector is located above the flexible support plates. The piezoelectric ceramics drivers are employed to drive two-level lever-type displacement amplification mechanisms, the amplification multiple is large and can reach 6-10 times, thepiezoelectric ceramics drivers drive the driver sets, and therefore, the output is large, the response is fast, the resolution is high, and it is easy to improve the control bandwidth of a device.

Description

technical field [0001] The invention belongs to the technical field of beam control, and in particular relates to a two-dimensional fast control reflector driven by a piezoelectric ceramic driver group, which can be used for precise control of large-diameter laser beams. Background technique [0002] The fast control mirror is a high-speed, high-precision beam control device, which can correct the beam pointing by quickly adjusting the deflection angle of the mirror. The fast control mirror system has the advantages of high working bandwidth, fast response speed, and high control precision. It has been successfully applied in the fields of laser communication, laser weapons, compound axis precision tracking, and adaptive optics. [0003] The Chinese invention patent with the publication number CN 103576283A discloses a fast mirror device based on flexible support. The device is driven by a voice coil motor. The driving stroke of the voice coil motor driver group is large and...

AI Technical Summary

Problems solved by technology

The device uses an elliptical elastic frame as the magnifying device, the magnification is limited, and the bending deflection capability of the arc-shaped flexible hinge is limited, so the deflection stroke of the reflector is small; the device uses three arc-shaped flexible hinges connected in parallel Structural form, when the mirror deflects, there is rotational interference between the three flexible hinges, resulting in stretching deformation of the flexible hinges, loss of stroke of the piezoelectric ceramic driver group, and influence on the deflection stroke of the mirror; in this device, the mirror is horizontal Poor directional rigidity, not suitable for environments with vibration and shock

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