Development of Magnetic Moment Measuring System for Space Vehicle Instruments

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概要

• 論文の詳細を見る

• The residual magnetism and the magnetic moment of each instrument boarded on a space vehicle are basically measured in the Electro Magnetic Compatibility (EMC) Test. It is important to estimate the residual magnetic moment for the calibration of the magnetic offset and for the correction of high-sensitive magnetometer. But the analyzing method and the measuring system have not been estimated yet and it is a hard work and takes much time to determine the residual magnetic moment in the EMC magnetic test. We have simulated residual magnetism and magnetic moment in many cases of instruments onboard the NOZOMI Satellite where we quantitatively evaluated the error and the accuracy. Hence, we have developed a new method and an equipment of magnetic moment measurement. The system is consist of the Non-Magnetic Biaxial Rotational Table that provides information of the instrument rotational angle, the Twin Fluxgate magnetometers and the Magnetic Moment Analyzing Device. For the analyzing method, we have used the octu-pole assumption for the magnetic offset determination and we have made an approximation to an eccentric dipole for the magnetic moment in an instrument. As the experimental result, the magnetic moment is immediately computed. We confirmed that the magnetic field from approximate magnetic moment agreed well with that from the observation. This new system does not only measure more accurate but also makes the EMC Test easier to operate and less time-consuming.

• 東海大学の論文

著者

• TOHYAMA Fumio

  Department of Aeronautics and Astronautics

• SHIRASAWA Hidetaka

  Course of Aeronautics and Astronautics

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• Development of Magnetic Moment Measuring System for Space Vehicle Instruments

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