Theoretical Investigation on the Interference Rejection for the Current Measurement Using Magnetic Sensor Arrays(<Special Section>IS-EMD2003 : Recent Technical Trend of Electro-Mechanical Devices)
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概要
- 論文の詳細を見る
A single solid-state magnetic sensor can be used to measure a current by sensing the field near the conductor in a non-contact way. In order to improve the accuracy of the measuring system, magnetic sensor arrays have been introduced in the current measurement around the conductor. An analytical algorithm based on Discrete Fourier Transform (DFT) is presented in this paper, which can separate the effects of the field generated by the current under measurement from the interference fields. A general mathematical model of the interference analysis is set up, which can be used for both DC and AC current measurement and has no restriction on the shape and number of the current conductors. Numerical simulations associated with preliminary experimental results confirm the validity of the approach.
- 社団法人電子情報通信学会の論文
- 2004-08-01
著者
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Wang Jing
The State Key Laboratory Of Electrical Insulation And Power Equipment Xi'an Jiaotong University
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Geng Yingsan
State Key Laboratory Of Electrical Insulation And Power Equipment (xi'an Jiaotong University)
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Wang Jianhua
State Key Laboratory Of Electrical Insulation And Power Equipment (xi'an Jiaotong University)
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Yao Jianjun
The State Key Laboratory Of Electrical Insulation And Power Equipment:xi'an Jiaotong University
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GENG Yingsan
the State Key Laboratory of Electrical Insulation and Power Equipment
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WANG Jianhua
the State Key Laboratory of Electrical Insulation and Power Equipment
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Geng Yingsan
Xi'an Jiaotong Univ. Xi'an Chn
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