发明授权
- 专利标题: Magnetic detection device
- 专利标题(中): 磁检测装置
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申请号: US12774786申请日: 2010-05-06
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公开(公告)号: US08354840B2公开(公告)日: 2013-01-15
- 发明人: Hideki Shimauchi , Hiroshi Kobayashi , Yuji Kawano , Yoshinori Tatenuma
- 申请人: Hideki Shimauchi , Hiroshi Kobayashi , Yuji Kawano , Yoshinori Tatenuma
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Electric Corporation
- 当前专利权人: Mitsubishi Electric Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2009-250404 20091030; JP2009-270142 20091127
- 主分类号: G01B7/30
- IPC分类号: G01B7/30
摘要:
A magnetic detection device includes a signal processing circuit that detects a moving position and a moving direction of a magnetic mobile object using an output of a comparing circuit configured to output a signal by comparing an output signal of a magneto-electric transducer element with a threshold. A duration during which an output of the signal processing circuit is in a high level or in a low level is fixed to a period t1 or a period t2 depending on the moving direction of the magnetic mobile object. When switching of the moving direction of the magnetic mobile object takes place within the period t1 or the period t2, the signal processing circuit outputs a position signal same as a position signal indicating a position immediately before the switching of the moving direction of the magnetic mobile object due to hysteresis of the threshold of the comparing circuit.
公开/授权文献
- US20110101965A1 MAGNETIC DETECTION DEVICE 公开/授权日:2011-05-05
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