High-bandwidth inertial stabilization reference light device with built-in inertial measurement device

Abstract

The invention provides a high-bandwidth inertial stabilization reference light device with a built-in inertial measurement device, which comprises an outer frame, a flexible hinge, an inner frame, an execution device, a reference light device, a feedback device and an electric control device, the reference light device and the feedback device are installed on the inner frame, the feedback device comprises a displacement sensing device used for sampling relative displacement data with the outer frame and an inertia measuring element used for measuring the angular velocity relative to the inertia space, and the electric control device is used for sending a correction signal to the execution device according to the relative displacement data and the angular velocity relative to the inertia space so the execution device is allowed to output force in the direction opposite to the vibration; the electric control device further controls the execution device to adjust the position of the reference light device on the inner frame according to an external position instruction and the angular velocity relative to the inertial space. Vibration interference can be suppressed, reference light stable relative to the inertial space is provided, the reference light can point in the inertial space according to instructions, and accurate tracking and aiming of a dynamic target are achieved.

Description

technical field [0001] The invention relates to the technical field of pointing and aiming stabilization systems, in particular to an inertial stabilization reference light device with a built-in inertial measurement device with high bandwidth. Background technique [0002] Optical imaging and laser systems that provide magnified images for viewing or project precision laser light to illuminate distant targets. These systems have an optical axis (sight) that can be positioned in elevation and azimuth. The optical system is easily affected by vibration, and the vibration often affects the signal being processed by the optical system, which will blur the image amplified by the system and affect the imaging quality. In a laser system, vibration can interfere with its laser pointing, degrading the beam quality. [0003] In order to keep the boresight of the optics stable, an inertial reference must provide the ability to recognize any apparent motion in the boresight and autom...

AI Technical Summary

Problems solved by technology

Increasing the servo bandwidth can improve the disturbance suppression ability, but because the angular vibration amplitude of the motion platform is small and the frequency range is wide compared with the smooth and low-frequency motion characteristics of the target object, it is difficult to achieve a high enough servo bandwidth in actual engineering to meet the Requirements for tracking and aiming accuracy in harsh vibration environments

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