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Precise adjustment method of satellite-borne instrument equipment

A precision adjustment and instrument technology, applied in design optimization/simulation, complex mathematical operations, etc., can solve problems such as incomplete consideration of factors and low adjustment accuracy, and achieve the effects of reducing labor intensity, improving adjustment efficiency, and improving work efficiency

Pending Publication Date: 2020-04-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of low adjustment accuracy caused by incomplete consideration of factors in the existing satellite assembly process, and now provides a precision adjustment method for satellite-borne instruments and equipment

Method used

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  • Precise adjustment method of satellite-borne instrument equipment
  • Precise adjustment method of satellite-borne instrument equipment
  • Precise adjustment method of satellite-borne instrument equipment

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Experimental program
Comparison scheme
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specific Embodiment approach 1

[0044] Specific implementation mode one: refer to Figure 5 Specifically illustrate the present embodiment, the precision adjustment method of the spaceborne instrument and equipment described in the present embodiment, comprises the following steps:

[0045] Step 1. Design the theoretical coordinate matrix of all gasket points in the astral coordinate system And obtain the theoretical coordinate matrix of all gasket points in the target cube mirror coordinate system of the tested instrument according to the geometric dimensions of the target cube mirror support structure of the tested instrument

[0046] According to the following formula, the theoretical matrix M of the spatial relationship between the star coordinate system and the target cube mirror coordinate system of the measured instrument is obtained TH :

[0047]

[0048] In this embodiment, Determined by the geometry of the support structure of the cubic mirror is known and fixed, M TH It is a 4th-order h...

specific Embodiment approach 2

[0093] Specific embodiment two: this embodiment is to further explain the precise adjustment method of the spaceborne instrument and equipment described in specific embodiment one. In this embodiment, after step six, the following steps are also included:

[0094] Step 7: Carry out satellite precision measurement again to obtain the actual matrix of the spatial relationship between the new star coordinate system and the target cube mirror coordinate system of the instrument under test

[0095] Step 8. Judgment and the M obtained in step 1 TH Whether the absolute value of the deviation, the absolute value of the angle difference and the absolute value of the position coordinate difference satisfy the following formula, if yes, the fine adjustment in step 6 is valid; otherwise, it is invalid and returns to step 2;

[0096] The absolute value of the angle difference should satisfy the following formula:

[0097]

[0098] alpha X′X 、α X′Y and alpha X′Z Respectively, the i...

specific Embodiment approach 3

[0104] Specific embodiment three: This embodiment is to further explain the precise adjustment method of the spaceborne instrument and equipment described in specific embodiment one. In this embodiment, after determining the adjustment height of each shim, the adjustment of each shim The coordinate matrix is ​​updated:

[0105]

[0106] Then the updated and Comparing and judging whether the adjustment is qualified or not can be judged from the deviation between the two.

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Abstract

The invention discloses a precision adjustment method of satellite-borne instrument equipment, and relates to the technical field of satellite assembly adjustment. The invention aims to solve the problem of low adjustment precision caused by incomplete consideration factors in the existing satellite final assembly process. According to the numerical values of an actual measurement matrix and a designed measurement matrix, the actual measurement global coordinates and the designed global coordinates of the gaskets are obtained, then a gasket adjustment equation is established, a constraint equation of a gasket plane is established according to the number of gaskets to form an overdetermined equation set and solve to obtain a gasket adjustment amount numerical value, and finally the gasket by utilizing the adjustment amount is adjusted.

Description

technical field [0001] The invention belongs to the technical field of satellite assembly and adjustment, and in particular relates to the precise adjustment of satellite part components. Background technique [0002] In order to ensure that the satellite can work normally during the flight, some instruments and equipment on the satellite (such as sun sensors, earth sensors, inertial devices, thrust components, etc.) have strict installation accuracy requirements, so the final assembly of spaceborne instruments and equipment It is an important part of the satellite assembly process. The precise measurement and adjustment of spaceborne instruments and equipment mainly includes two parts: precision measurement and precise adjustment. Precision measurement is the pre-set part of precise adjustment. The overall satellite design department has put forward strict requirements for the installation position and precision of the instruments and equipment on the satellite. However, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/12G06F17/16
CPCG06F17/12G06F17/16
Inventor 马强何俊
Owner HARBIN INST OF TECH
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