公开(公告)号：US07042210B2

公开(公告)日：2006-05-09

申请号：US09913362

申请日：2000-12-14

申请人： Yasunori Matsukawa ,  Akira Matsuura ,  Shinjiro Ueda

发明人： Yasunori Matsukawa ,  Akira Matsuura ,  Shinjiro Ueda

IPC分类号： G01B7/30

CPC分类号： G01D5/145 ,  G01B7/003 ,  G01B7/023

摘要： A non-contact position sensor includes a plurality of magnets, at least one magnetic sensor element, and an object to be detected. The plurality of magnets form a magnetic circuit which includes a U-shaped first magnetic body, a U-shaped second magnetic body, and the plurality of magnets. The plurality of magnets are disposed between the two U-shaped magnetic bodies. The magnetic sensor element is held by the two U-shaped magnetic bodies.

摘要翻译： 非接触位置传感器包括多个磁体，至少一个磁性传感器元件和待检测的物体。 多个磁体形成包括U形第一磁体，U形第二磁体和多个磁体的磁路。 多个磁体设置在两个U形磁体之间。 磁传感器元件由两个U形磁体保持。

公开(公告)号：US07012422B2

公开(公告)日：2006-03-14

申请号：US10480745

申请日：2002-06-18

申请人： Akira Matsuura ,  Yasunori Matsukawa ,  Shinjiro Ueda

发明人： Akira Matsuura ,  Yasunori Matsukawa ,  Shinjiro Ueda

IPC分类号： G01B7/30

CPC分类号： G01D5/147

摘要： A non-contact type position sensor enhanced in characteristics. A first magnetic element has a first magnetic detecting part at one end side thereof. A first magnet has one pole thereof fixed to the other side of the first magnetic element. A second magnetic element is positioned underneath the first magnetic element, and has a second magnetic detecting part at one end side thereof, and has the other pole of the first magnet at the other end side thereof. A third magnetic element is positioned substantially on circles concentric with the first magnetic element, and has a third magnetic detecting part at the one end side thereof. A second magnet has one pole fixed to the other end side of the third magnetic element. A fourth magnetic element is positioned underneath the third magnetic element, and has a fourth magnetic detecting part at one end side thereof, and also has the other pole of the second magnet at the other end side thereof. A magnetic detecting element is positioned between the first and second magnetic detecting parts, and is positioned between the third and fourth magnetic detecting parts.

摘要翻译： 非接触式位置传感器的特点得到提升。 第一磁性元件在其一端侧具有第一磁性检测部。 第一磁体的一个极固定在第一磁性元件的另一侧。 第二磁性元件位于第一磁性元件下方，并且在其一端侧具有第二磁性检测部，并且在另一端侧具有第一磁体的另一极。 第三磁性元件基本上位于与第一磁性元件同心的圆上，并且在其一端侧具有第三磁性检测部。 第二磁体具有固定到第三磁性元件的另一端侧的一个极。 第四磁性元件位于第三磁性元件下方，并且在其一端侧具有第四磁性检测部，并且在另一端侧具有第二磁体的另一极。 磁检测元件位于第一和第二磁检测部之间，位于第三和第四磁检测部之间。

公开(公告)号：US06690158B2

公开(公告)日：2004-02-10

申请号：US10089672

申请日：2002-08-27

申请人： Kiyoshi Saito ,  Shinjiro Ueda ,  Akira Matsuura ,  Yasunori Matsukawa ,  Noriyuki Jitosho

发明人： Kiyoshi Saito ,  Shinjiro Ueda ,  Akira Matsuura ,  Yasunori Matsukawa ,  Noriyuki Jitosho

IPC分类号： G01B714

CPC分类号： G01D5/145 ,  G01B7/003

摘要： A position sensor includes a shaft to be detected, a first magnet being fixed to the shaft and having a first polarity vector parallel to an axis of the shaft, a second magnet being disposed opposite to the first magnet and having a second polarity vector crossing the first polarity vector substantially orthogonally three-dimensionally, and first and second semiconductor magnetoresistive elements being disposed over the second magnet and functioning as a magnetoelectric transducer having a magnetosensitive axis substantially orthogonal to the first and second polarity vectors. The first and second elements generate an output responsive to an axial movement of the shaft.

摘要翻译： 位置传感器包括待检测的轴，第一磁体固定到轴上并具有平行于轴的轴线的第一极性矢量，第二磁体与第一磁体相对地设置，并且具有与第一磁体相交的第二极性矢量 第一极性矢量基本上是正交三维的，并且第一和第二半导体磁阻元件设置在第二磁体之上并用作具有基本上与第一和第二极性矢量正交的磁感应轴的磁电变换器。 第一和第二元件产生响应于轴的轴向运动的输出。