JP4917621B2 - 磁界測定装置 - Google Patents
磁界測定装置 Download PDFInfo
- Publication number
- JP4917621B2 JP4917621B2 JP2009061756A JP2009061756A JP4917621B2 JP 4917621 B2 JP4917621 B2 JP 4917621B2 JP 2009061756 A JP2009061756 A JP 2009061756A JP 2009061756 A JP2009061756 A JP 2009061756A JP 4917621 B2 JP4917621 B2 JP 4917621B2
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- JP
- Japan
- Prior art keywords
- conductor
- current
- magnetic field
- magnetic
- magnetic sensor
- Prior art date
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- Measuring Magnetic Variables (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
電流導体の往路導体のみが配置され、復路導体は接地層である場合に、電流方向に対して垂直方向に発生する磁界の磁束密度が1uTとなる点の電流導体からの距離と、電流値の関係をビオ・サバールの法則をもとに計算した結果を図9に示す。
電流導体は0.2mm幅、0.02mm厚、線路長50mmとして、ア)往路導体のみの配置、イ)往路導体と復路導体を基板の同一層に並べて配置、ウ)同一層において復路導体を2分割し、往路導体を水平方向に挟み込むように配置、エ)多層基板の別層の相対する位置に重ねて配置、オ)復路導体を2分割し、多層基板の別層の相対する位置に、往路導体を上下方向に挟み込むように配置の場合に、電流0.1Aによって生ずる磁界の磁束密度を、電流導体からの距離をパラメータとして計算した。
2 プリント基板
3 電流導体
3a 往路導体
3b 復路導体
11 磁気センサ
12 多層基板
13 電流導体
13a 往路導体
13b 復路導体
Claims (2)
- 基板上に、全部又は一部の電流信号を通す往路導体及び復路導体を、磁気センサが感知する前記往路導体および前記復路導体の各々が発生する磁界を相殺するように配置し、
前記往路導体及び前記復路導体のうち、少なくとも一方の導体が複数に分割されており、該分割された導体が他方の導体を挟んでいることを特徴とする磁界測定装置。 - 前記一方の導体の線幅に比べて、該導体により挟まれる前記他方の導体の線幅を広くしてあることを特徴とする請求項1に記載の磁界測定装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2009061756A JP4917621B2 (ja) | 2009-03-13 | 2009-03-13 | 磁界測定装置 |
Applications Claiming Priority (1)
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JP2009061756A JP4917621B2 (ja) | 2009-03-13 | 2009-03-13 | 磁界測定装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003373307A Division JP2005134343A (ja) | 2003-10-31 | 2003-10-31 | 磁界測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009133873A JP2009133873A (ja) | 2009-06-18 |
JP4917621B2 true JP4917621B2 (ja) | 2012-04-18 |
Family
ID=40865840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009061756A Expired - Fee Related JP4917621B2 (ja) | 2009-03-13 | 2009-03-13 | 磁界測定装置 |
Country Status (1)
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JP (1) | JP4917621B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7044094B2 (ja) * | 2019-05-13 | 2022-03-30 | 株式会社デンソー | 回転角度検出装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57108763A (en) * | 1980-12-26 | 1982-07-06 | Honda Motor Co Ltd | Disturbance preventing method for earth magnetic sensor |
JPH06152082A (ja) * | 1992-11-05 | 1994-05-31 | Hitachi Ltd | プリント基板 |
JP3196535B2 (ja) * | 1994-11-17 | 2001-08-06 | 松下電器産業株式会社 | 無電極放電ランプ |
JP3669219B2 (ja) * | 1999-08-10 | 2005-07-06 | 日本電気株式会社 | 多層プリント配線板 |
-
2009
- 2009-03-13 JP JP2009061756A patent/JP4917621B2/ja not_active Expired - Fee Related
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JP2009133873A (ja) | 2009-06-18 |
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