Light-small type space laser communication terminal rough tracking device

A technology of laser communication and rough tracking, which is applied in the field of photoelectric tracking and capture, can solve the problems of inapplicability to small satellite optical communication terminals, low precision, and large size, and achieve the effects of light weight, compliance and adjustment accuracy, and small size

Active Publication Date: 2018-05-15
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing rough tracking device cannot be applied to small satellite optical communication terminals due to its large volume, heavy weight and low precision, the present invention provides a light and small space laser communication terminal rough tracking device

Method used

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  • Light-small type space laser communication terminal rough tracking device
  • Light-small type space laser communication terminal rough tracking device
  • Light-small type space laser communication terminal rough tracking device

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] see Figure 1-Figure 2 , the light and small space laser communication terminal coarse tracking device provided by the present invention includes an optical transceiver 1, a two-degree-of-freedom flexible hinge 2, an azimuth axis actuator 3 and a pitch axis actuator 4 with equal load inertia, a first electric An eddy current displacement sensor 5 , a second eddy current displacement sensor 6 and a base 8 .

[0038] The optical transceiver 1 is installed on the base 8 through the two-degree-of-freedom flexible hinge 2, and the rotation center of the two-degree-of-freedom flexible hinge 2 coincides with the rotation center of the optical transceiver 1; the flexible axis cutting surface of the two-degree-of-freedom flexible hinge 2 can be parabolic, double Curve type, cartwheel type, etc.; in order to take into account the tilt angle range and angular accuracy, ...

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PUM

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Abstract

For solving the technical problem that the existing rough tracking device is unsuitable for a small-satellite optical communication terminal due to large volume, large weight and low precision, the invention provides a light-small type space laser communication terminal rough tracking device. An optical transmitter and receiver is connected with a base through a flexible hinge, a two-point drivingadjusting way is performed on the optical transmitter and receiver by using a linear actuator, so that the problems of large volume and large weight caused by using pitching azimuth frame are avoided; since the linear actuator is large in thrust, small in volume, light in weight, and high in displacement precision, the weight can be controlled within 1kg, and the weight of the flexible hinge is within 0.5Kg, and the total weight of the rough tracking device can be controlled at 2-3Kg by adding the necessary connection joints.

Description

technical field [0001] The invention belongs to the field of photoelectric tracking and capture, and relates to a photoelectric tracking and aiming device, in particular to a rough tracking device for a space laser communication terminal. Background technique [0002] Due to its low SWaP (Size, Weight and Power), short development cycle, and low on-board resource consumption, small satellite optical communication terminals have been widely researched and applied at home and abroad. Small-satellite space laser communication generally performs initial alignment of the optical axis through satellite attitude adjustment, and then compensates the error angle through rough tracking. 100mm), small size, and light weight, which put forward higher requirements for the rough tracking system of optical communication terminals. [0003] The existing coarse tracking structure generally adopts the structure of periscope, O-frame, latitude and longitude ceremony or pendulum mirror. The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/118B64G1/36B64G3/00
CPCH04B10/118B64G1/36B64G3/00Y02D30/70
Inventor 阮萍张福瑞韩俊锋
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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