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Abstract
The proof mass used for gravitational-wave or Earth-gravity-field detection is usually comprised of materials such as gold–platinum alloys, which have a high density and low magnetic susceptibility...
Highlights
Space-based gravity-detection systems construct the pure orbit by using proof mass (PM) such as in the detection of Earth’s gravity field,[1,2] gravitational waves,[3,4,5,6] equivalence principle,[7,8,9] geodetic effect, and frame-dragging effect.[10]
In this study, a new type of Au-Ir alloy was designed for the inner-formation flying system (IFS), which was proposed by researchers at Tsinghua University for Earthgravity-field detection.[2]
The estimation is combined owing to the existence of ferromagnetism in the preparation of the Au-Ir alloy, leading to the magnetic moment of the PM obtained by the vibration sample magnetometer (VSM), including the remanent magnetic moment
Summary
Space-based gravity-detection systems construct the pure orbit by using proof mass (PM) such as in the detection of Earth’s gravity field,[1,2] gravitational waves,[3,4,5,6] equivalence principle,[7,8,9] geodetic effect, and frame-dragging effect.[10]. In this study, a new type of Au-Ir alloy was designed for the inner-formation flying system (IFS), which was proposed by researchers at Tsinghua University for Earthgravity-field detection.[2] First, the model of the magnetic disturbance for IFS is provided, followed by a description of the proposed MS computation method for Au-Ir. Second, the preparation and testing of the Au-Ir alloy is introduced, and the results and discussion of the magnetic disturbance are presented.
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