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1. 发明申请

US20110260724A1 MAGNETIC DETECTION APPARATUS 有权
标题翻译：磁性检测装置
公开(公告)号：US20110260724A1
公开(公告)日：2011-10-27
申请号：US12907599
申请日：2010-10-19
申请人： Yoshinori TATENUMA , Hideki SHIMAUCHI , Masahiro YOKOTANI , Yuji KAWANO , Hiroshi KOBAYASHI , Kazuyasu NISHIKAWA , Manabu TSUKAMOTO
发明人： Yoshinori TATENUMA , Hideki SHIMAUCHI , Masahiro YOKOTANI , Yuji KAWANO , Hiroshi KOBAYASHI , Kazuyasu NISHIKAWA , Manabu TSUKAMOTO
IPC分类号： G01R33/02
CPC分类号： G01D5/2448 , G01P3/42 , G01P3/481 , G01P3/488
摘要： A magnetic detection apparatus includes a first comparison circuit that waveform-shapes the amplitude of a detection signal from magneto-electric transducers by DC coupling, a third comparison circuit that waveform-shapes the detection signal by AC coupling, an oscillation circuit having a natural frequency, a control circuit that counts the output of the first comparison circuit by using the oscillation means, and a selection circuit that selects the output of the first comparison means and the output of the second comparison means. The control circuit counts rising from the next rising or falling from the next falling of an output rectangular wave of the first comparison circuit, and provides output to the selection circuit at the time point at which the count value reaches a desired value. The selection circuit selects and outputs the output rectangular wave of the first comparison circuit or the third comparison circuit.
摘要翻译：磁检测装置包括：第一比较电路，其通过DC耦合对来自磁电换能器的检测信号的振幅进行波形整形;第三比较电路，其通过AC耦合对检测信号进行波形整形;具有固有频率的振荡电路控制电路，其通过使用振荡装置对第一比较电路的输出进行计数，以及选择电路，其选择第一比较装置的输出和第二比较装置的输出。控制电路从第一比较电路的输出矩形波的下一个下降沿开始下一个上升或下降，并且在计数值达到期望值的时间点向选择电路提供输出。选择电路选择并输出第一比较电路或第三比较电路的输出矩形波。

2. 发明申请

US20110101965A1 MAGNETIC DETECTION DEVICE 有权
标题翻译：磁性检测装置
公开(公告)号：US20110101965A1
公开(公告)日：2011-05-05
申请号：US12774786
申请日：2010-05-06
申请人： Hideki SHIMAUCHI , Hiroshi KOBAYASHI , Yuji KAWANO , Yoshinori TATENUMA
发明人： Hideki SHIMAUCHI , Hiroshi KOBAYASHI , Yuji KAWANO , Yoshinori TATENUMA
IPC分类号： G01B7/14
CPC分类号： G01D5/145 , G01D5/24476 , G01D5/2451
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.
摘要翻译：磁检测装置包括：信号处理电路，其使用比较电路的输出来检测磁性移动体的移动位置和移动方向，该比较电路被配置为通过将磁电换能器元件的输出信号与阈值进行比较来输出信号。信号处理电路的输出处于高电平或低电平的持续时间根据磁性移动体的移动方向固定为周期t1或周期t2。当磁性移动物体的移动方向在时间段t1或周期t2内进行切换时，信号处理电路输出与表示磁性移动体的移动方向切换前的位置相同的位置信号对象由于比较电路的阈值滞后。

3. 发明申请

US20090302833A1 MAGNETIC DETECTION APPARATUS 有权
标题翻译：磁性检测装置
公开(公告)号：US20090302833A1
公开(公告)日：2009-12-10
申请号：US12277691
申请日：2008-11-25
申请人： Yuji KAWANO , Hiroshi KOBAYASHI , Yoshinori TATENUMA , Masahiro YOKOTANI
发明人： Yuji KAWANO , Hiroshi KOBAYASHI , Yoshinori TATENUMA , Masahiro YOKOTANI
IPC分类号： G01B7/14 , G01B7/30
CPC分类号： G01P13/045 , G01D11/245 , G01P3/487
摘要： In a magnetic detection apparatus, a magnetic detection sensor generates a sensor output signal whose high level and low level have different potentials in accordance with the moving direction of a magnetic moving object, and a computer unit includes three comparator circuits and detects the output signal of the magnetic detection sensor with three levels of comparison threshold values, so that the moving direction of the magnetic moving object can be detected accurately without any delay.
摘要翻译：在磁检测装置中，磁检测传感器根据磁性运动物体的移动方向产生高电平和低电平具有不同电位的传感器输出信号，并且计算机单元包括三个比较电路，并检测输出信号具有三级比较阈值的磁检测传感器，使得能够准确地检测磁性移动物体的移动方向而没有任何延迟。

4. 发明申请

US20120126797A1 MAGNETIC POSITION DETECTION APPARATUS 有权
标题翻译：磁性位置检测装置
公开(公告)号：US20120126797A1
公开(公告)日：2012-05-24
申请号：US13085133
申请日：2011-04-12
申请人： Yuji KAWANO , Hiroshi KOBAYASHI , Kazuyasu NISHIKAWA , Taisuke FURUKAWA
发明人： Yuji KAWANO , Hiroshi KOBAYASHI , Kazuyasu NISHIKAWA , Taisuke FURUKAWA
IPC分类号： G01B7/30
CPC分类号： G01D5/147 , G01D5/2451
摘要： A magnetic position detection apparatus includes a substrate, a magnet, a bridge circuit including first through fourth magneto-electric converting elements formed on the substrate, and a detection circuit. A substrate surface is substantially perpendicular to a magnet magnetization direction. The second and third magneto-electric converting elements are, when viewed along the magnet magnetization direction, disposed to be on or in the vicinity of a straight line passing through a center point of a magnetic pole of the magnet and parallel to a straight line perpendicular to both the magnet magnetization direction and the magnetic mobile object. The first and fourth magneto-electric converting elements are disposed so that, when not opposed to the magnetic mobile object, a component of a substrate of a magnetic field to be applied thereto is substantially same as that of a magnetic field to be applied to the second and third magneto-electric converting elements.
摘要翻译：磁性位置检测装置包括基板，磁体，包括形成在基板上的第一至第四磁电转换元件的桥接电路和检测电路。基板表面基本上垂直于磁体磁化方向。第二和第三磁电转换元件当沿着磁化磁化方向观察时，被设置在通过磁体的磁极的中心点并平行于垂直于直线的直线的直线附近或附近磁化方向和磁性移动体。第一和第四磁电转换元件设置成当不与磁性移动体相对时，要施加到其上的磁场的基板的分量与施加到磁性移动体的磁场的分量基本相同第二和第三磁电转换元件。

5. 发明申请

US20090027046A1 MAGNETIC DETECTION DEVICE 有权
标题翻译：磁性检测装置
公开(公告)号：US20090027046A1
公开(公告)日：2009-01-29
申请号：US11946438
申请日：2007-11-28
申请人： Hiroshi SAKANOUE , Masahiro YOKOTANI , Yuji KAWANO , Yasuyoshi HORI
发明人： Hiroshi SAKANOUE , Masahiro YOKOTANI , Yuji KAWANO , Yasuyoshi HORI
IPC分类号： G01B7/008
CPC分类号： G01P3/488 , G01D5/2451 , G01P13/04
摘要： A magnetic detection device is provided in which a first signal is outputted in accordance with the mutual phase relationship between the output of a first magnetoelectric conversion output circuit and the output of a second magnetoelectric conversion output circuit that are based on the movement, in forward direction, of a detection subject, thereby generating a pulse of a high level 1 and a low level 1; a second signal is outputted in accordance with the mutual phase relationship between the output of the first magnetoelectric conversion output circuit and the output of the second magnetoelectric conversion output circuit that are based on the movement, in forward direction, of the detection subject; an output signal processing circuit for generating a pulse of a high level 2 and a low level 2 is provided; and not only the pulse of the high level 1 and the low level 1 does not cross the other comparison level, but also the pulse of the high level 2 and the low level 2 does not cross the one comparison level.
摘要翻译：提供了一种磁检测装置，其中根据第一磁电转换输出电路的输出和基于该运动的第二磁电转换输出电路的输出之间的相互关系输出第一信号，，从而产生高电平1和低电平1的脉冲; 根据第一磁电转换输出电路的输出与第二磁电转换输出电路的输出之间的相互关系输出第二信号，该相位关系基于检测对象的正向运动; 提供用于产生高电平2和低电平2的脉冲的输出信号处理电路; 不仅高电平1和低电平1的脉冲不会越过其他比较电平，而且高电平2和低电平2的脉冲也不会越过一个比较电平。

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