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Three-axis inertial stabilization platform

A three-axis inertial and stable platform technology, applied in directions such as navigation through speed/acceleration measurement, can solve problems such as interference with shooting accuracy, and achieve the effect of easy installation and maintenance, no need for lubrication, and improved dynamic pointing accuracy.

Active Publication Date: 2018-12-18
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a three-axis inertial stabilization platform based on flexible cable transmission, which aims to solve the technical problem that the shooting accuracy is disturbed due to the time and space backlash of the rigid transmission platform when the spontaneous vibration, resonance and flight attitude of the aircraft change.

Method used

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Embodiment 1

[0040] as attached Figure 1-5 As shown, the airborne light-duty three-axis inertial stabilization platform of the present invention includes a base 1, a side protection cover 2, an upper protection cover 3, an azimuth frame 4, an azimuth bearing inner pressure ring 5, a vibration damping seat 6, a shock absorber 7, an amplitude Limit mechanism 8, roll frame 9, three-axis inertial measurement unit 10, pitch frame 11, azimuth bearing outer pressure ring 12, roll drive assembly 13, electrical interface 14, electrical interface mounting base 15, controller 16, controller Mounting seat 17, roll zero sensor 18, roll zero detection object 19, azimuth drive threaded rod 20, azimuth drive assembly 21, pitch zero sensor 22, pitch drive assembly 23, pitch zero detection object 24, azimuth zero Position sensor 25, pitch drive threaded rod 26, pitch drive flexible cable 27, pitch drive passive wheel 28, roll drive passive wheel 29, roll drive threaded rod 30, roll drive flexible cable 31,...

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Abstract

The invention provides a three-axis inertial stabilization platform, applied to the field of photoelectric technology. All three-axis reduction transmission systems of the three-axis inertial stabilization platform adopt a flexible cable transmission mode, and the rigidity of the flexible cable transmission can reach 10 times or more of the same precision gear transmission or harmonic system; andmeanwhile, the flexible cable transmission has the characteristics of high precision, low noise, stable transmission, no lubrication, easy to install and maintain and the like. The high rigidity and no backlash characteristics of the flexible cable precision transmission ensure a fast dynamic response of a stable tracking servo system, and improve the dynamic pointing precision of the platform.

Description

technical field [0001] The invention belongs to the field of optoelectronic technology, and in particular relates to a three-axis inertial stable platform. Background technique [0002] Aerial photography is an important tool for resource exploration, geological analysis, and military surveying and mapping. When installing a camera or video camera on an aircraft for remote sensing imaging, due to the influence of factors such as aircraft vibration and aircraft yaw, roll, and pitch movements, it will cause blurring, distortion, and rotation of the remote sensing image, seriously affecting the shooting effect, and even causing Images are difficult to use. In order to effectively compensate the impact of aircraft vibration and angular motion on camera equipment and improve the quality of aerial images, a platform that can accurately achieve three-axis gyro inertial stabilization is essential. [0003] In the prior art, such as U.S. Patent US5922039, Chinese Patents CN1305091A...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/18
CPCG01C21/18
Inventor 石磊王中石沈宏海许永森田大鹏
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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