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Nutational oscillatory effect of the test body in space equivalence principle experiments
Shao, CG; Zhang, YZ; Luo, J; Shao, CG , Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
2004
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号41期号:2页码:211-214
摘要The significance of quadrupole gravitational force is discussed for test mass in equivalence principle (EP), and the angular moment acting on a cylindrically symmetrical body due to quadrupole force is calculated, which will result in nutational oscillatory effect. The oscillations contain a perturbation with the same frequency of EP violation signal, which is mitigated by two different methods as in Galileo Galilei (GG) mission and muSCOPE. In GG the sensor for readout is sensitive to differential forces in the orbital plane perpendicular to spin axis of test cylinders. In order to, mitigate the nutational oscillatory effect, test mass should be rapidly rotated with the spin axis. However, in muSCOPE, the readout sensitive axis is the symmetry axis in the orbital plane. This nutational oscillation will produce a second order effect in the rotation amplitude at twice the signal frequency, and could be subtracted easily, too.
部门归属Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Arbitrary Gravitational Source Step Experiment Test Masses Relevance Mission Earth
学科领域Physics
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收录类别SCI
WOS记录号WOS:000189186900010
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14123
专题理论物理所1978-2010年知识产出
通讯作者Shao, CG , Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
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Shao, CG,Zhang, YZ,Luo, J,et al. Nutational oscillatory effect of the test body in space equivalence principle experiments[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2004,41(2):211-214.
APA Shao, CG,Zhang, YZ,Luo, J,&Shao, CG , Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China..(2004).Nutational oscillatory effect of the test body in space equivalence principle experiments.COMMUNICATIONS IN THEORETICAL PHYSICS,41(2),211-214.
MLA Shao, CG,et al."Nutational oscillatory effect of the test body in space equivalence principle experiments".COMMUNICATIONS IN THEORETICAL PHYSICS 41.2(2004):211-214.
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