发明名称 |
Measuring system and measuring cell for making magnetic field measurements |
摘要 |
A process and apparatus for measuring a magnetic field based on the Faraday effect rotation of a light beam passing through a ferrimagnetic coating subject to a magnetic field to be measured is shown. The magnetization direction within the ferrimagnetic coating is coherently oriented by applying a high amplitude alternating magnetic field oriented in accordance with the axis of the light beam. This is followed by a progressive reduction of the amplitude of this magnetic field and the magnetic field to be measured is compensated. A system and a measuring cell making it possible to perform said process is also shown.
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申请公布号 |
US4697145(A) |
申请公布日期 |
1987.09.29 |
申请号 |
US19850694275 |
申请日期 |
1985.01.24 |
申请人 |
THOMSON-CSF |
发明人 |
DORIATH, GERARD;HARTEMANN, PIERRE;JACOBELLI, ALAIN |
分类号 |
G01R33/032;(IPC1-7):G01R33/02;G02B5/30;G02F1/29;G02F1/31 |
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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