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논문 기본 정보

자료유형
학술저널
저자정보
Xin Chaojun (Equipment Academy) Cai Yuanwen (Equipment Academy) Ren Yuan (Equipment Academy) Fan Yahong (Beijing Institute of Control Engineering) Su Yongzhi (Equipment Academy)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.22 No.2
발행연도
2017.6
수록면
315 - 325 (11page)
DOI
10.4283/JMAG.2017.22.2.315

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초록· 키워드

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Magnetically suspended sensitive gyroscopes (MSSGs) provide an interesting alternative for achieving precious attitude angular measurement. To effectively reduce the measurement error caused by the non-uniformity of the air-gap flux density in a MSSG, this paper proposes a novel compensation method based on measuring and modeling of the air-gap flux density. The angular velocity measurement principle and the structure of the MSSG are described, and then the characteristic of the air-gap flux density has been analyzed in detail. Next, to compensate the flux density distribution error and improve the measurement accuracy of the MSSG, a realtime compensation method based on the online measurement with hall probes is designed. The common issues caused by the non-uniformity of the air-gap flux density can be effectively resolved by the proposed method in high-precision magnetically suspended configurations. Comparative simulation results before and after compensation have verified the effectiveness and superiority of the proposed compensation method.

목차

1. Introduction
2. Angular Velocity Measurement Principle of a MSSG
3. Analysis of Errors Caused by Flux Density Distribution Non-uniform
4. Compensation Based on the Flux Density Measuring in Real-time
5. Simulation Results
6. Conclusion
References

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