渦電流形変位センサのQ値解析手法
書誌事項
- タイトル別名
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- The Analysis Methods for the Quality Factor of an Eddy Current Displacement Sensor
- ウズデンリュウガタ ヘンイ センサ ノ Qチ カイセキ シュホウ
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抄録
The output voltage of an eddy current displacement sensor depends on the quality factor Q = ωL/R of the coil. Therefore, impedance analysis of the coil is important for output voltage analysis. Theoretical analysis of coils has been performed by C. V. Dodd, A. Reatti, and others. However, the quality factor of a coil cannot be calculated by using their theory. This paper presents theoretical, numerical, and experimental analyses of a coil for an eddy current displacement sensor. The impedance characteristics are analyzed by combining three theories: Dodd's theory, Reatti's theory, and the finite element method (FEM). As a result, the calculated value of the quality factor using the technique of complementing Dodd's theory with FEM is found to be accurate within seven percent. This technique is effective from the viewpoints of calculation time and accuracy. The calculation times of the three methods are also discussed in this paper.
収録刊行物
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- 日本応用磁気学会誌
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日本応用磁気学会誌 29 (3), 296-301, 2005
公益社団法人 日本磁気学会
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詳細情報 詳細情報について
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- CRID
- 1390282680067911040
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- NII論文ID
- 110002811788
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- NII書誌ID
- AN0031390X
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- ISSN
- 18804004
- 02850192
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- NDL書誌ID
- 7262006
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可