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https://doi.org/10.1088/1757-899X/87/1/012089
Title: | Novel giant magnetostrictive material current sensor | Authors: | Shen, Y Liu, Z Lin, Q Ge, J Zhang, G Yu, W |
Keywords: | Composite materials Inductive sensors Magnetic fields Magnetism Strain Bias magnetic field Device sensitivity Giant magnetostrictive materials Inductive current Magnetic field interference Monitor and control Operating principles Optical current sensor Magnetostrictive devices |
Issue Date: | 2015 | Citation: | Shen, Y, Liu, Z, Lin, Q, Ge, J, Zhang, G, Yu, W (2015). Novel giant magnetostrictive material current sensor. IOP Conference Series: Materials Science and Engineering 87 (1) : 12089. ScholarBank@NUS Repository. https://doi.org/10.1088/1757-899X/87/1/012089 | Rights: | Attribution 4.0 International | Abstract: | Because of the shortcomings of the traditional inductive current sensor and optical current sensor, this paper proposes a new type of current sensor that uses a giant magnetostrictive material (GMM) to monitor and control power lines. This paper introduces operating principle and structure design of a GMM current sensor. To eliminate the frequency- doubled effect and to obtain good linearity, we set the bias magnetic field to 11.53 kA/m and the prestress force to 6 MPa. The strains of the 100- and 200-mm GMM sticks under the same magnetic field were compared; the results showed that the 100-mm stick had a larger strain. The magnetic field interference during a single-phase measurement of power lines was also studied. Finally, we analyzed the device sensitivity and discussed its influencing factors. The sensitivity reached 4 × 10-9 m2/A. | Source Title: | IOP Conference Series: Materials Science and Engineering | URI: | https://scholarbank.nus.edu.sg/handle/10635/183603 | ISSN: | 17578981 | DOI: | 10.1088/1757-899X/87/1/012089 | Rights: | Attribution 4.0 International |
Appears in Collections: | Elements Staff Publications |
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