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�������պ����ѧѧ�� 2012, Vol. 38 Issue (1) :28-32    DOI:
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1. �й���ѧԺ�о���Ժ,���� 100049;
2. �й���ѧԺ�ռ��ѧ��Ӧ���о�����,���� 100190
Characteristic and detection of Mars dust
Sun Lilin1, Qin Guotai2, Zhu Guangwu2*
1. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
2. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China

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Abstract�� Mars dust contributes to the Mars atmosphere dynamic and thermodynamic evolution process and the long-term modification of Mars albedo and surface geology.Mars dust environment is very crucial for the power system and optical sensors onboard Mars landers (or rovers).There is a need for Mars dust in situ measurement.The characteristics and main detecting solutions of Mars dust were discussed.Based upon Quartz Crystal Microbalance technology, the design of Mars dust characteristic integrated detecting system (MDCIDS) was proposed.MDCIDS includes 3 kinds of sensors.The dust accumulation sensor can measure the accumulation rate and mass of Mars dust with sensing crystal surface upward.The charging dust sensors can measure the accumulation rate of positive and negative charging dust through applying different bias voltages to crystals.And the magnetic dust sensors can measure the accumulation rate of magnetic dust with small permanent magnets behind sensing crystals.The accumulation mass range is 10-11~10-4g.MDCIDS is expected to be applied to future Mars landing exploration mission.
Keywords�� Mars   dust   in situ measurement   quartz crystal microbalance     
Received 2010-07-20;
About author: ������(1971-),Ů,��������������,��Ϊ�й���ѧԺ�ռ��ѧӦ���о����ĸ��о�Ա,sunll@nssc.ac.cn.
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������, �ع�̩, �����.���dz�����̽��[J]  �������պ����ѧѧ��, 2012,V38(1): 28-32
Sun Lilin, Qin Guotai, Zhu Guangwu.Characteristic and detection of Mars dust[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(1): 28-32
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