发明名称 |
Fluxgate sensor integrated in printed circuit board and method for manufacturing the same |
摘要 |
A fluxgate sensor integrated in a printed circuit board. The fluxgate sensor has soft magnetic cores having a lower core and an upper core mounted on the lower core, for forming a closed magnetic path on a printed circuit board, an excitation coil formed as a metal film, alternately winding the upper and the lower soft magnetic cores substantially in a number '8' pattern, and a pick-up coil formed as a metal film, having a structure of winding the upper and the lower soft magnetic cores substantially in a solenoid pattern, the pick-up coil being placed on the same plane as an external contour of the excitation coil. The fluxgate sensor integrated in the printed circuit board can be mass-produced at a cheap manufacturing cost. The fluxgate sensor also can be made compact-sized, and at the same time, is capable of forming a closed-magnetic path. As a result, flux leakage is minimized, and the fluxgate sensor has a high sensitivity as it detects the magnetic field through a variable driving. |
申请公布号 |
EP1345037(A2) |
申请公布日期 |
2003.09.17 |
申请号 |
EP20020021236 |
申请日期 |
2002.09.18 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
CHOI, WON-YOUL;PARK, KEON-YANG;KOH, BYEONG-CHEON;KANG, MYUNG-SAM;NA, KYUNG-WON;CHOI, SANG-ON |
分类号 |
G01R33/02;G01R33/09;G01R33/04;G01R33/05;H01L43/00;(IPC1-7):G01R33/04 |
主分类号 |
G01R33/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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