Flux-gate magnetometer for Mars exploration

Hua Zhao; G. W. Zhu; P. Yu; J. D. Wang; M. F. Yu; L. Li; Y. Q. Sun; S. W. Chen; H. Z. Liao; B. Zhou; Y. Y. Feng

doi:10.1117/12.807733

13 October 2008 Flux-gate magnetometer for Mars exploration

Hua Zhao, G. W. Zhu, P. Yu, J. D. Wang, M. F. Yu, L. Li, Y. Q. Sun, S. W. Chen, H. Z. Liao, B. Zhou, Y. Y. Feng

Proceedings Volume 7129, Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration; 71292N (2008) https://doi.org/10.1117/12.807733
Event: Seventh International Symposium on Instrumentation and Control Technology, 2008, Beijing, China

Abstract

A micro-satellite, Yinghuo-1, would be launched with Russian spacecraft, Phobos-Grunt in October, 2009 to investigate the space environment around Mars. YH-1 and Phobos-Grunt forms a two-point measurement configuration in the Martian space environment. YH-1 and Phobos-Grunt are equipped with similar magnetic field and plasma detecting payload on two spacecraft would give some coordinated exploration around Mars. YH-1 would orbit Mars with periapsis of 800 km above the Martian surface, and apoapsis about 80000km to the center of Mars. The orbit inclination is in the range of 0~7° to the Martian equator. A flux-gate type magnetometer, with two tri-axial sensors, is developed for YH-1 spacecraft. Two sensors are mounted on one-side of the deployable solar panel with a radial separation about 45cm to function as a gradiometer to minimize the affects of platform remanence. The dynamic range of the magnetometer is ±256nT with a 16-bit ADC converter, and the noise level is better than 0.01nT/√Hz, to measure three-component magnetic field from DC to 10Hz. Flux-gate magnetometer would work together with the Plasma Package onboard of YH-1 to investigate the Martian bow shock, magnetosheath, magnetic pileup region (MPR). A detail description of the flux-gate magnetometer is presented in this paper, with test and calibration results.

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Hua Zhao, G. W. Zhu, P. Yu, J. D. Wang, M. F. Yu, L. Li, Y. Q. Sun, S. W. Chen, H. Z. Liao, B. Zhou, and Y. Y. Feng "Flux-gate magnetometer for Mars exploration", Proc. SPIE 7129, Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration, 71292N (13 October 2008); https://doi.org/10.1117/12.807733

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