发明授权
US5757184A Magnetic field detection apparatus with bilateral electrical switch for
inverting magnetic sensor current
失效
具有用于反转磁传感器电流的双向电气开关的磁场检测装置
- 专利标题： Magnetic field detection apparatus with bilateral electrical switch for inverting magnetic sensor current
- 专利标题（中）： 具有用于反转磁传感器电流的双向电气开关的磁场检测装置
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申请号： US719468申请日： 1996-09-25
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公开(公告)号： US5757184A公开(公告)日： 1998-05-26
- 发明人: Kazuo Kurihara , Manabu Aizawa
- 申请人： Kazuo Kurihara , Manabu Aizawa
- 申请人地址： JPX Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-254254 19950929; JPX8-131841 19960527
- 主分类号： G01C17/32
- IPC分类号： G01C17/32 ; B60R16/02 ; G01R33/02 ; G01C17/28
摘要：
A magnetic detection apparatus is disclosed, the size and cost of which can easily be reduced and with which excellent sensitivity can be obtained. The magnetic detection apparatus according to the present invention has a magnetic sensor formed by winding a coil around a magnetic member, wherein change in a response waveform of an electric current allowed to flow in the coil of the magnetic sensor occurring when time-varying voltage is applied to the coil is detected. Since the response waveform of the electric current allowed to flow in the coil is changed in accordance with the intensity of an external magnetic field, the external magnetic field can be detected.
公开/授权文献
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