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Platform angular vibration analogue device in satellite optical communication

A satellite optical communication and simulation device technology, which is applied in the field of satellite optical communication, can solve the problem of no satellite platform angular vibration simulation device

Inactive Publication Date: 2011-04-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that there is no satellite platform angular vibration simulation device in the prior art, the present invention proposes a platform angular vibration simulation device in satellite optical communication

Method used

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  • Platform angular vibration analogue device in satellite optical communication
  • Platform angular vibration analogue device in satellite optical communication
  • Platform angular vibration analogue device in satellite optical communication

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Experimental program
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specific Embodiment approach 1

[0007] Specific implementation mode one, combination figure 1 In this embodiment, the platform angular vibration simulation device in satellite optical communication includes a vibration platform 1, an electromagnetic exciter 2, a main shaft 3, a frequency conversion mechanism 4, an angular position sensor 5, a computer 6 and a connecting rod 7. The computer 6 The signal output terminal is connected to the electromagnetic exciter 2. The connecting rod 7 has a through hole 7-1 in the middle position, the main shaft 3 is tightly combined with the connecting rod 7 through the through hole 7-1, and the electromagnetic exciter 2 is connected to the connecting rod 7. The side surface of one end of the rod 7 is connected. The frequency conversion mechanism 4 is a spring pair structure. The spring pairs are symmetrically supported on the two sides of the other end of the connecting rod 7. The vibration platform 1 is vertically fixed on the upper end of the main shaft 3, and the angular p...

specific Embodiment approach 2

[0010] Specific implementation manner two: combination figure 1 To describe this embodiment, the difference between this embodiment and the first embodiment is that the frequency conversion mechanism 4 is a pair of springs.

specific Embodiment approach 3

[0011] Specific implementation mode three: combination figure 1 To describe this embodiment, the difference between this embodiment and the first embodiment is that the frequency conversion mechanism 4 has a structure of multiple pairs of springs.

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Abstract

The invention relates to a platform angular vibration analogue device in satellite optical communication, which relates to the filed of satellite optical communication, and solves the problem that no satellite platform angular vibration analogue devices exist in the prior art. The platform angular vibration analogue device in satellite optical communication comprises a vibration platform, an electromagnetic vibration generator, a main shaft, a variable-frequency mechanism, an angular position sensor, a computer and a connection rod, wherein a signal output terminal of the computer is connected with the electromagnetic vibration generator, a through hole is arranged in the middle of the connection rod, the main shaft is tightly connected with the connection rod through the through hole, the electromagnetic vibration generator is connected with the lateral side at one end of the connection rod, the variable-frequency mechanism is of a structure of a spring pair which symmetrically supports two lateral sides at the other side of the connection rod, the vibration platform is vertically fixed on the upper end of the main shaft, the angular position sensor is in contact with the outer surface of the main shaft, and a signal output terminal of the angular position sensor is connected with a signal input terminal of the computer. The platform angular vibration analogue device in satellite optical communication can be used for simulating satellite vibration and further verifying performances of the terminal to be detected.

Description

Technical field [0001] The invention relates to the field of satellite optical communication, in particular to a platform angular vibration simulation device in satellite optical communication. Background technique [0002] In the laser inter-satellite link, due to the long communication distance and the small laser beam divergence, the optical communication terminal is required to have very high tracking accuracy (usually at the micro-arc measurement level). The satellite platform is a reference platform for optical communication terminals, and the impact of its vibration will be superimposed on the output of the tracking and pointing system, resulting in a decrease in the signal power of the receiving end, and in severe cases, the link will be interrupted. The vibration of the satellite platform is divided into two types: translation and rotation. The impact of the translation part on the laser link is negligible, and the impact of the rotation part (ie, angular vibration) must...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
Inventor 于思源马晶谭立英韩琦琦俞建杰
Owner HARBIN INST OF TECH