Magnetic Non-Destructive Materials Characterization of Non-Ferromagnetic Materials Using Magnetic Susceptibility
2018 IEEE International Magnetics Conference (INTERMAG)(2018)
摘要
All materials interact with an external magnetic field to some extent quantified by the magnetic susceptibility c. There is a correlation between local c value and local anomalies of material composition, deformation and stress, which makes it interesting to explore related sensor principles with a potential for NDT application. This contribution however concerns a modification over the magnetic force based sensor for laterally resolved susceptibility measurement and demonstrates the possible range of NDT applications on different non-ferromagnetic material samples. This sensor however eliminates the use of cantilever to avoid possible vibrations in the industrial environment.
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关键词
non-destructive testing,magnetic force,magnetic susceptibility,paramagnetism,diamagnetism
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