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Satellite residual magnetic moment measurement system in earth magnetic field and measurement method

A technology of measurement system and measurement method, which is applied in the field of measurement system of satellite remanence magnetic moment, and can solve problems such as inapplicability

Inactive Publication Date: 2009-06-10
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

In the past, there were mainly two methods for measuring the remanent magnetic moment of satellites in the environment of the geomagnetic field. One was the flip measurement method of the 509 Institute of the Aerospace Industry Corporation, and the other was the oblique measurement method of the 511 Institute of the Aerospace Industry Corporation. Conditional restrictions and safety considerations, neither of these two methods is suitable for the satellites of the Fifth Academy of Aerospace Science and Technology

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  • Satellite residual magnetic moment measurement system in earth magnetic field and measurement method
  • Satellite residual magnetic moment measurement system in earth magnetic field and measurement method
  • Satellite residual magnetic moment measurement system in earth magnetic field and measurement method

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] refer to figure 1 , a measurement system for measuring satellite remanent magnetic moment in the geomagnetic field, consists of a turntable 1 carrying a satellite to be measured that can rotate 360° horizontally along a vertical axis, and two symmetrical positions placed on both sides of the center connecting line of the satellite 2. Detector bracket 3, two groups of three-component magnetic field detectors 4 installed on two detector brackets 3 respectively, magnetometer connected with detector ( figure 1 not shown) and the data acquisition system connected with the magnetometer ( figure 1 not shown) composition. Each group of detectors includes three three-component magnetic field detectors 4, and the distance between the three three-component magnetic field detectors 4 is equal to each other. Two groups of three-component magnetic field detectors 4 are sy...

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Abstract

The present invention relates to a measuring system used for satellite residual magnetic moment in geomagnetic field and a measuring method thereof. The measuring system is composed of a rotating platform which loads the satellite to be measured, a detector frame, a detector, a gaussmeter connected with the detector, and a data acquisition system connected with the gaussmeter. The satellite to be measured in fixed on the rotating platform. The rotating platform is rotated from 0 DEG and is respectively stopped after the rotating platform is rotated for 10 DEG, the data acquisition is executed until the rotating platform is rotated for 360 DEG. The X component and Y component of satellite magnetic moment are calculated through a bipole method, and X component and Y component of satellite residual magnetic moment are calculated through an equator method according to the measured data. Then the Z component of magnetic moment is derived with the characteristic that the direction of magnetic moment and the direction of geomagnetic field are same. Finally the Z component of satellite residual magnetic moment is calculated through the Z component of magnetic moment. The measuring system and measuring method according to the invention are easy and feasible, and can be used for measuring the residual magnetic moment of satellite.

Description

technical field [0001] The invention relates to a measurement system and a measurement method of satellite residual magnetic moment, in particular to a measurement system and measurement method of satellite residual magnetic moment in the earth's magnetic field. Background technique [0002] There is a magnetic field around the earth, which we call the geomagnetic field. Satellites in low earth orbit operate in the environment of the earth's magnetic field. If there are ferromagnetic substances or ring currents on the satellite, they will be affected by the earth's magnetic field. The long-term accumulation of this effect will affect the satellite attitude. Therefore, it is necessary to measure the magnetic state of the satellite before the satellite is launched. [0003] Due to the requirements of satellite structure and performance, some hard magnetic materials and soft magnetic materials need to be used for its structure or parts and components. The magnetism of hard ...

Claims

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Application Information

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IPC IPC(8): G01R33/12G01R33/02
Inventor 易忠史尧宜马慧媛肖琦王陈琪
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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