Optical axis inertia stability datum reference device

Abstract

The invention discloses an optical axis inertia stability datum reference device which comprises a base, a moveable connecting part, a stable platform unit, an adjusting unit, a control unit and a reference light source, wherein the stable platform unit is connected with the other end of the moveable connecting part, is capable of being moved relative to the base, and is provided with a stable platform and an inertia sensation component which is fixedly mounted with the stable platform; the adjusting unit is mounted on the base and is used for adjusting a real-time position of the stable platform relative to the base; the input end of the control unit is connected with the inertia sensation component; the output end of the control unit is connected with the adjusting unit and is used for receiving an inertia sensation signal transmitted from the inertia sensation component, used for carrying out processing calculation on the inertia sensation signal, and used for outputting a control signal to the adjusting unit to enable the adjusting unit to carry out adjustment; the reference light source is fixedly mounted on the stable platform; the inertia sensation component is capable of measuring angle velocities of at least two spatial freedom degrees of the stable platform and a posture variations of the stable platform; correspondingly, the inertia sensation signal comprises the angle velocities of at least two spatial freedom degrees of the stable platform and the posture variations of the stable platform.

Description

technical field [0001] The invention relates to a visual axis reference device capable of providing stability in inertial space, and belongs to the technical field of visual axis stabilization of motion platform capture, tracking and aiming systems. Background technique [0002] In the fields of astronomical observation, shooting range measurement, spacecraft orbit determination, and laser beam director, in order to observe moving targets or deliver laser beams to moving targets, it is necessary to use the acquisition, tracking and aiming system (referred to as tracking system) To drive the boresight of the telescope to move along with the line of sight of the target, and to control the angular deviation between the boresight of the telescope and the line of sight of the target within the allowable range, it is often required to achieve micro-radian or even sub-micro-radian level tracking and aiming accuracy. With the wide application of the tracking and targeting system in ...

AI Technical Summary

Problems solved by technology

The disturbance suppression capability can be improved to a certain extent by increasing the servo bandwidth of the coarse and fine tracking composite axes of the tracking and aiming system, but in actual engineering, it is difficult to achieve sufficient High servo bandwidth to meet the requirements of tracking and aiming accuracy in harsh vibration environments, because compared with the smooth and low-frequency motion characteristics of the target object, the angular vibration amplitude of the motion platform is small, but the frequency range is wide

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