发明名称 |
ROTATION SPEED DETECTOR |
摘要 |
A rotation number detector according to an embodiment is a rotation number detector that detects the number of rotations of a magnet attached to a rotating body by using a power generation unit. The power generation unit includes N (N is a natural number equal to or larger than 1) power generation elements, each including a magnetic wire in which magnetization reversal occurs due to a large Barkhausen effect and a pickup coil that is wound around the magnetic wire. The magnetic wire is longer than a wound portion of the pickup coil in an extension direction of the magnetic wire of the power generation elements. The magnetic wire is set above a rotation center of the magnet. |
申请公布号 |
KR20150100924(A) |
申请公布日期 |
2015.09.02 |
申请号 |
KR20157020503 |
申请日期 |
2013.02.22 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
TATEI YOSHINAO;MUSHA TAKESHI;NAKAJIMA HAJIME;OKAMURO TAKASHI;NIMURA MASANORI |
分类号 |
G01D5/14;G01P3/487;H02N11/00 |
主分类号 |
G01D5/14 |
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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