CN1762188A - 具有开口的磁屏蔽结构及用于此的磁材料框架 - Google Patents
具有开口的磁屏蔽结构及用于此的磁材料框架 Download PDFInfo
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- CN1762188A CN1762188A CNA2004800074160A CN200480007416A CN1762188A CN 1762188 A CN1762188 A CN 1762188A CN A2004800074160 A CNA2004800074160 A CN A2004800074160A CN 200480007416 A CN200480007416 A CN 200480007416A CN 1762188 A CN1762188 A CN 1762188A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0075—Magnetic shielding materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0047—Housings or packaging of magnetic sensors ; Holders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/42—Screening
- G01R33/421—Screening of main or gradient magnetic field
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- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B17/00—Screening
- G12B17/02—Screening from electric or magnetic fields, e.g. radio waves
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Building Environments (AREA)
Abstract
Description
屏蔽结构类型 | 屏蔽系数S | |
纵向连接的百叶窗状件排,邻接 | 图1(B) | 1.8 |
同上,重叠 | 图1(C) | 2.2 |
紧密封闭类型的屏蔽结构 | 图1(D) | 1.8 |
序号 | 层数 | 板条方位 | 屏蔽系数S | |
内层 | 外层 | |||
1 | 1 | - | 水平 | 11 |
2 | - | 垂直 | 11 | |
3 | 水平 | - | 12 | |
4 | 垂直 | - | 12 | |
5 | 2 | 水平 | 水平 | 22 |
6 | 垂直 | 垂直 | 22 | |
7 | 垂直 | 水平 | 27 | |
8 | 水平 | 垂直 | 27 |
屏蔽前的磁通密度Bo | 10μT | 50μT | 100μT |
具有平面封闭磁路的纵向连接的百叶窗状件排的屏蔽系数S(图3A) | 4.7 | 7.4 | 8.3 |
紧密封闭类型的磁屏蔽单元的屏蔽系数S(图3B) | 2.3 | 2.5 | 2.6 |
项目号 | 层数 | 板条方位 | 屏蔽系数S | ||
内层 | 中间层 | 外层 | |||
11 | 2 | 水平 | (空气间隙) | 水平 | 37 |
12 | 垂直 | (空气间隙) | 垂直 | 37 | |
13 | 水平 | (空气间隙) | 垂直 | 42 | |
14 | 垂直 | (空气间隙) | 水平 | 43 | |
15 | 3 | 水平 | 水平 | 水平 | 45 |
16 | 垂直 | 垂直 | 垂直 | 46 | |
17 | 水平 | 垂直 | 水平 | 59 | |
18 | 垂直 | 水平 | 垂直 | 59 |
重叠间隙(mm) | 0 | 0.1 | 0.2 | 0.5 | 1 | 2 | 3 | 4 | 5 |
屏蔽系数S | 8.5 | 8.5 | 8.3 | 8.0 | 7.9 | 7.0 | 4.7 | 3.5 | 3.3 |
重叠面积比 | 0 | 0.1 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 |
屏蔽系数S | 4.7 | 6.0 | 7.9 | 8.0 | 8.3 | 8.5 | 8.5 |
屏蔽前的磁通密度Bo | 10μT | 50μT | 100μT | |
a | 利用图6A屏蔽的屏蔽系数S | 6.6 | 9.1 | 10.4 |
b. | 利用图6B屏蔽的屏蔽系数S | 7.9 | 10.9 | 11.7 |
c. | 利用图6C屏蔽的屏蔽系数S | 4.2 | 5.7 | 6.7 |
参照 | 紧密封闭型的屏蔽单元的屏蔽系数S | 2.7 | 3.1 | 3.2 |
项目序号 | 应用的磁场 | 屏蔽系数S | 性能比率(O/C) | ||
DC/AC | 磁通量密度μTp-p | 紧密封闭类型(C) | 具有开口类型(O) | ||
1 | DC | 1 | 13.0 | 62.3 | 4.8 |
2 | 10 | 14.3 | 78.9 | 5.5 | |
3 | 100 | 17.4 | 139.5 | 8.0 | |
4 | AC | 1 | 9.8 | 20.0 | 2.0 |
5 | 10 | 10.0 | 21.8 | 2.2 | |
6 | 100 | 10.6 | 27.0 | 2.5 |
Claims (37)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003072119 | 2003-03-17 | ||
JP071147/2003 | 2003-03-17 | ||
JP072119/2003 | 2003-03-17 | ||
JP2003071147 | 2003-03-17 | ||
JP205427/2003 | 2003-08-01 | ||
JP2003205427 | 2003-08-01 | ||
PCT/JP2004/003457 WO2004084603A1 (ja) | 2003-03-17 | 2004-03-16 | 開放型磁気シールド構造及びその磁性体フレーム |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1762188A true CN1762188A (zh) | 2006-04-19 |
CN1762188B CN1762188B (zh) | 2011-01-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004800074160A Expired - Fee Related CN1762188B (zh) | 2003-03-17 | 2004-03-16 | 具有开口的磁屏蔽结构及用于此的磁材料框架 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7964803B2 (zh) |
EP (1) | EP1605742B1 (zh) |
JP (1) | JP4347847B2 (zh) |
KR (1) | KR101080052B1 (zh) |
CN (1) | CN1762188B (zh) |
TW (1) | TWI340623B (zh) |
WO (1) | WO2004084603A1 (zh) |
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CN107064593A (zh) * | 2017-06-14 | 2017-08-18 | 电子科技大学 | 一种适用于气体绝缘变电站大电流测量的电子式互感器 |
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2004
- 2004-03-16 US US10/549,069 patent/US7964803B2/en not_active Expired - Fee Related
- 2004-03-16 JP JP2005503685A patent/JP4347847B2/ja not_active Expired - Fee Related
- 2004-03-16 TW TW093106937A patent/TWI340623B/zh not_active IP Right Cessation
- 2004-03-16 WO PCT/JP2004/003457 patent/WO2004084603A1/ja active Application Filing
- 2004-03-16 EP EP04720974A patent/EP1605742B1/en not_active Expired - Lifetime
- 2004-03-16 CN CN2004800074160A patent/CN1762188B/zh not_active Expired - Fee Related
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2005
- 2005-09-16 KR KR1020057017483A patent/KR101080052B1/ko not_active IP Right Cessation
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101448383B (zh) * | 2007-11-27 | 2012-08-08 | 沈阳工业大学 | 一种屏蔽套结构 |
CN104093297A (zh) * | 2014-06-13 | 2014-10-08 | 中国科学院等离子体物理研究所 | 一种磁屏蔽设备 |
CN107064593A (zh) * | 2017-06-14 | 2017-08-18 | 电子科技大学 | 一种适用于气体绝缘变电站大电流测量的电子式互感器 |
CN107064593B (zh) * | 2017-06-14 | 2019-05-28 | 电子科技大学 | 一种适用于气体绝缘变电站大电流测量的电子式互感器 |
CN109724507A (zh) * | 2017-10-31 | 2019-05-07 | Tdk株式会社 | 磁传感器 |
CN113615327A (zh) * | 2019-01-15 | 2021-11-05 | 株式会社日立高新技术 | 电磁场屏蔽板及其制造方法、电磁场屏蔽构造以及半导体制造环境 |
CN113615327B (zh) * | 2019-01-15 | 2023-10-13 | 株式会社日立高新技术 | 电磁场屏蔽板及其制造方法、屏蔽构造及半导体制造环境 |
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CN112071578A (zh) * | 2020-08-28 | 2020-12-11 | 广东电网有限责任公司清远供电局 | 一种零序电流互感装置 |
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TWI340623B (en) | 2011-04-11 |
JPWO2004084603A1 (ja) | 2006-06-29 |
CN1762188B (zh) | 2011-01-12 |
JP4347847B2 (ja) | 2009-10-21 |
EP1605742A1 (en) | 2005-12-14 |
TW200420220A (en) | 2004-10-01 |
WO2004084603A1 (ja) | 2004-09-30 |
US20070272369A1 (en) | 2007-11-29 |
KR101080052B1 (ko) | 2011-11-07 |
EP1605742B1 (en) | 2011-06-29 |
US7964803B2 (en) | 2011-06-21 |
KR20050123107A (ko) | 2005-12-29 |
EP1605742A4 (en) | 2010-03-03 |
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