发明名称 |
Mixed mode fluxgate current transducer |
摘要 |
<p>Electrical current transducer comprising a measuring circuit (6) and an inductor (4) for measuring a primary current / P flowing in a primary conductor (2), the inductor comprising a saturable magnetic core (10) made of a highly permeable magnetic material and a secondary coil (12) for carrying an alternating excitation i configured to alternatingly saturate the magnetic core, the coil being connected to the measuring circuit. The measuring circuit is configured to measure a mean value of the excitation current in the secondary coil and determine therefrom a value of the primary current for small current amplitudes, the measuring circuit being further configured for evaluating the frequency of the excitation current i and determining therefrom the value of the primary current for large currents.</p> |
申请公布号 |
EP2284549(A1) |
申请公布日期 |
2011.02.16 |
申请号 |
EP20090167672 |
申请日期 |
2009.08.11 |
申请人 |
LIAISONS ELECTRONIQUES-MECANIQUES LEM S.A. |
发明人 |
TEPPAN, WOLFRAM;OBATA, HIROSHI;HATAKEYAMA, YORI |
分类号 |
G01R19/20;G01R15/18 |
主分类号 |
G01R19/20 |
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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