发明名称 |
Optical magnetic field sensor |
摘要 |
<p>The invention refers to an optical magnetic field sensor in which a polarizer, a magneto-optical element and an analyzer whose transmission-polarization direction is made different from that of said polarizer are arranged along at least a light propagating direction to detect as an output light intensity a magnetic field to be measured, wherein a transmission path diameter of a second optical transmission line provided across said analyzer at an end of said magneto-optical element is larger than a transmission path diameter of a first optical transmission line provided across said polarizer at the other end of said magneto-optical element. <IMAGE></p> |
申请公布号 |
EP1176427(A2) |
申请公布日期 |
2002.01.30 |
申请号 |
EP20010125240 |
申请日期 |
1994.03.29 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ITOH, NOBUKI |
分类号 |
G01R33/032;(IPC1-7):G01R33/032 |
主分类号 |
G01R33/032 |
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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