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公开(公告)号：US20210164810A1
公开(公告)日：2021-06-03
申请号：US16639438
申请日：2018-08-09
申请人： Robert Bosch GmbH
发明人： Tim Bruckhaus
摘要： The invention relates to a control unit (6) for evaluating the sensor signal of a sensor (2), comprising at least one first sensor connection (21) and a second sensor connection (22) for connecting the sensor (2), wherein the second sensor connection (22) is connected to a short-circuit protection circuit (23), which is arranged between the second sensor connection (22) and a grounding (3), and which comprises a switchable transistor (7), by way of which the grounding (3) of the second sensor connection (22) can be interrupted.
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公开(公告)号：US20100033169A1
公开(公告)日：2010-02-11
申请号：US12511445
申请日：2009-07-29
申请人： Hirofumi Horibe , Tetsuya Sakai
发明人： Hirofumi Horibe , Tetsuya Sakai
IPC分类号： G01D5/18
CPC分类号： G01D5/145
摘要： A position detector can correct a position for detecting a moving object without changing a physical location of a moving mechanism, a Hall element and/or the like. Either a permanent magnet 19 or Hall elements 16a, 17a, 17b, 17c is mounted on a moving object 3 moving along a fixed movement path, and the other of them is mounted on the fixed movement path of the moving object 3. A voltage output from each Hall element is detected based on an electromotive force induced in the Hall element in accordance with a facing position between the permanent magnet and the Hall element, for detection of the position of the moving object. A comparison unit a2 outputs a detection signal for the moving object when the voltage value output from the Hall element exceeds a threshold, and comprises a variable controlling unit R for variably controlling the threshold.
摘要翻译： 位置检测器可以校正用于检测移动物体的位置，而不改变移动机构，霍尔元件等的物理位置。 永磁体19或霍尔元件16a，17a，17b，17c安装在沿着固定移动路径移动的移动物体3上，另一个安装在移动物体3的固定移动路径上。电压输出 基于霍尔元件中感应的电动势，根据永磁体和霍尔元件之间的相对位置检测来自每个霍尔元件的霍尔元件，以检测移动物体的位置。 当从霍尔元件输出的电压值超过阈值时，比较单元a2输出用于移动物体的检测信号，并且包括用于可变地控制阈值的可变控制单元R.
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公开(公告)号：US20050184727A1
公开(公告)日：2005-08-25
申请号：US10859074
申请日：2004-06-03
申请人： Kazuhisa Kurita , Kenji Nakao , Yoshihiko Onishi , Manabu Miyaki
发明人： Kazuhisa Kurita , Kenji Nakao , Yoshihiko Onishi , Manabu Miyaki
CPC分类号： G01D5/145
摘要： A rotation angle detection device is simple in structure and is capable of reducing the size of a permanent magnet. The permanent magnet is fixedly secured to a rotating member. A first guide member is attached at one end face to an S pole side of the permanent magnet. A second guide member is attached at one end face to an N pole side of the permanent magnet, and has its tip end disposed in opposition to a tip end of the first guide member. A magnetoresistive member is disposed in a space between the tip ends of the first and second guide members, the magnetoresistive member being fixedly attached to a non-rotating member. An angle of rotation of the rotating member is detected by detecting a change of the azimuth of magnetic flux, which is generated by the permanent magnet in the space, by means of the magnetoresistive member.
摘要翻译： 旋转角度检测装置结构简单，能够减小永磁体的尺寸。 永磁体固定地固定在旋转构件上。 第一引导构件在一个端面处附接到永磁体的S极侧。 第二引导构件在一个端面处附接到永磁体的N极侧，并且其末端设置成与第一引导构件的前端相对。 磁阻构件设置在第一和第二引导构件的末端之间的空间中，磁阻构件固定地附接到非旋转构件。 通过利用磁阻元件检测由该空间中的永久磁铁产生的磁通的方位角的变化来检测旋转构件的旋转角度。
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公开(公告)号：US06930477B1
公开(公告)日：2005-08-16
申请号：US10859074
申请日：2004-06-03
申请人： Kazuhisa Kurita , Kenji Nakao , Yoshihiko Onishi , Manabu Miyaki
发明人： Kazuhisa Kurita , Kenji Nakao , Yoshihiko Onishi , Manabu Miyaki
CPC分类号： G01D5/145
摘要： A rotation angle detection device is simple in structure and is capable of reducing the size of a permanent magnet. The permanent magnet is fixedly secured to a rotating member. A first guide member is attached at one end face to an S pole side of the permanent magnet. A second guide member is attached at one end face to an N pole side of the permanent magnet, and has its tip end disposed in opposition to a tip end of the first guide member. A magnetoresistive member is disposed in a space between the tip ends of the first and second guide members, the magnetoresistive member being fixedly attached to a non-rotating member. An angle of rotation of the rotating member is detected by detecting a change of the azimuth of magnetic flux, which is generated by the permanent magnet in the space, by means of the magnetoresistive member.
摘要翻译： 旋转角度检测装置结构简单，能够减小永磁体的尺寸。 永磁体固定地固定在旋转构件上。 第一引导构件在一个端面处附接到永磁体的S极侧。 第二引导构件在一个端面处附接到永磁体的N极侧，并且其末端设置成与第一引导构件的前端相对。 磁阻构件设置在第一和第二引导构件的末端之间的空间中，磁阻构件固定地附接到非旋转构件。 通过利用磁阻元件检测由该空间中的永久磁铁产生的磁通的方位角的变化来检测旋转构件的旋转角度。
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5.发明授权Temperature information detecting device for angle sensor and position detecting device 有权用于角度传感器和位置检测装置的温度信息检测装置公开(公告)号：US06896407B2
公开(公告)日：2005-05-24
申请号：US10285460
申请日：2002-11-01
申请人： Takashi Nomiyama , Fumio Nagasaka , Shinichi Akano
发明人： Takashi Nomiyama , Fumio Nagasaka , Shinichi Akano
CPC分类号： F16K37/0083
摘要： A temperature information detecting device for an angle sensor is provided for detecting only temperature-dependent components based on middle-point potentials when a constant current is supplied to a bridge circuit for an angle sensor, for acquiring a temperature of the angle sensor from the temperature-dependent components, for employing compensating information corresponding to the acquired temperature without separately providing any additional temperature sensor, and for making temperature compensation of the output of the temperature sensor in automatically controlling the valve opening of a flow control valve.
摘要翻译： 提供了一种用于角度传感器的温度信息检测装置，用于当将恒定电流提供给用于角度传感器的桥式电路时，仅基于中点电位检测与温度相关的分量，用于从温度获取角度传感器的温度 用于采用与获取的温度相对应的补偿信息，而不需要单独提供任何额外的温度传感器，并且用于对温度传感器的输出进行温度补偿，以自动控制流量控制阀的阀门开度。
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6.发明授权
公开(公告)号：US6104187A
公开(公告)日：2000-08-15
申请号：US68777
申请日：1998-05-14
申请人： Klaus Marx , Franz Jost
发明人： Klaus Marx , Franz Jost
摘要： The contactless magneto-resistive angle sensing device (1) includes two sensor components (10,11) oriented at a fixed angle relative to each other, a controllable power supply (PW) to heat and maintain the sensor components (10,11) at different temperatures, a magnet (MG) producing a magnetic field (B) in which the sensor components are arranged and an evaluating device (12) to receive output signals (U1,U2) from the sensor components (10,11). Each sensor component (10,11) includes magneto-resistive resistors (MR) connected in a respective bridge (B1,B2) having input terminals (I1,I1';I2,I2') for supply of current and output terminals (O1,O1';O2,O2') for the output signal (U1,U2). In a rotating magnetic field the evaluating device (12) analyzes the output signals (U1,U2) as a function of field angle and temperature to determine a reference angle at which the output signals of the angle sensing device have a minimum temperature dependence and stores the reference angle as a zero point for subsequent angular measurements. The sensor components are then mounted on a rotatable part whose angular position is to be subsequently measured at an angular position in relation to a stationary magnetic corresponding to the reference angle.
摘要翻译： PCT No.PCT / DE97 / 01834 Sec。 371日期：1998年5月14日 102（e）日期1998年5月14日PCT 1997年8月23日PCT公布。 第WO98 / 14792号公报 日期1998年4月9日非接触磁阻角度感测装置（1）包括相对于彼此以固定角度定向的两个传感器部件（10,11），用于加热和维持传感器部件的可控电源（PW） 10,11）在不同温度下，产生其中布置有传感器部件的磁场（B）的磁体（MG）和从传感器部件（10,10）接收输出信号（U1，U2）的评估装置（12） 11）。 每个传感器组件（10,11）包括连接在具有输入端（I1，I1'; I2，I2'）的相应桥（B1，B2）中的磁阻电阻（MR），用于提供电流和输出端（O1， O1'; O2，O2'），用于输出信号（U1，U2）。 在旋转磁场中，评估装置（12）根据场角和温度分析输出信号（U1，U2），以确定角度检测装置的输出信号具有最低温度依赖性并存储 参考角度作为后续角度测量的零点。 然后将传感器部件安装在可旋转部分上，其角位置将随着相对于与参考角度相对应的固定磁体的角度位置被测量。
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公开(公告)号：US5801529A
公开(公告)日：1998-09-01
申请号：US740623
申请日：1996-10-31
IPC分类号： G01B7/30 , F02D35/00 , G01B7/00 , G01D5/14 , G01D5/16 , G01D5/18 , G01D5/245 , G01R33/09 , G01B7/14 , G01R33/06 , F62B53/06
CPC分类号： G01D5/147
摘要： The invention provides a sensing device capable of outputting a correct signal precisely corresponding to a particular position (angle) of, for example a protruding or recessed portion of a rotating member made of a magnetic material. The sensing device includes: a magnet for generating magnetic field; a rotary member of magnetic material for changing a magnetic field generated by the magnet, the rotary member of magnetic material being disposed a predetermined distance apart from the magnet; and a giant magnetoresistance device for detecting the varying magnetic field, the operating range of the giant magnetoresistance device being set such that the change in resistance of the giant magnetoresistance device is uniform over the entire operating range in both directions of change in the magnetic field induced by the rotary member of magnetic material, wherein the giant magnetoresistance device is disposed in such a manner that the center of the magnetic field sensing plane of the giant magnetoresistance device deviates from the center of the magnet in a direction parallel to a plane containing the displacement direction of the rotary member of magnetic material.
摘要翻译： 本发明提供一种感测装置，其能够输出精确对应于由磁性材料制成的旋转构件的突出或凹陷部分的特定位置（角度）的正确信号。 感测装置包括：用于产生磁场的磁体; 用于改变由所述磁体产生的磁场的磁性材料的转动件，所述磁性材料的所述转动件与所述磁体隔开预定距离; 以及用于检测变化的磁场的巨磁电阻装置，巨磁电阻装置的工作范围被设定为使得巨磁电阻装置的电阻变化在整个工作范围内在磁场变化的两个方向上是均匀的 通过磁性材料的旋转构件，其中巨磁电阻装置以这样的方式设置，使得巨磁电阻装置的磁场感测平面的中心在与包含位移的平面平行的方向上偏离磁体的中心 磁性材料的旋转构件的方向。
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8.发明授权Travel sensor having a magnetic sensor attached to a truncated pyramid and a movable magnet 失效行程传感器具有安装在截棱锥体上的磁性传感器和可动磁铁
公开(公告)号：US5574365A
公开(公告)日：1996-11-12
申请号：US361223
申请日：1994-12-21
申请人： Hitoshi Oyama , Masahiro Kume
发明人： Hitoshi Oyama , Masahiro Kume
摘要： A movement distance detector which is simple in structure, low-cost and highly accurate. The detector includes a magnet movable along a path, a magnetic body arranged along the path, and a magnetically sensitive element attached to one end of the magnetic body. When the magnet is moved along the path, a magnetic circuit is formed by the oppositely arranged magnet and magnetic body. The number of magnetic fluxes focused by the magnetic body changes with the movement distance of the magnet. The magnetically sensitive element detects the change in number of magnetic fluxes, that is, the movement distance. The magnetic body may be a rod, a truncated pyramid or a cylinder.
摘要翻译： 一种移动距离检测器，结构简单，成本低，准确度高。 检测器包括沿着路径移动的磁体，沿着路径布置的磁体以及附接到磁体的一端的磁敏元件。 当磁体沿着路径移动时，由相对布置的磁体和磁体形成磁路。 由磁体聚焦的磁通量随磁体的移动距离而变化。 磁敏元件检测磁通量的变化，即移动距离。 磁体可以是杆，截锥体或圆柱体。
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公开(公告)号：US5557185A
公开(公告)日：1996-09-17
申请号：US488068
申请日：1995-06-07
IPC分类号： G01B7/00 , G01D1/18 , G01D5/14 , G01D5/165 , G01D5/18 , G01D5/241 , G01D5/34 , G01L1/00 , G01P15/093 , G01P15/12 , H04R23/00 , G01R29/12 , H04R19/00
CPC分类号： G01B7/003 , G01D1/18 , G01D5/145 , G01D5/165 , G01D5/18 , G01D5/2412 , G01D5/34 , G01L1/005 , G01P15/093 , G01P15/12 , G01P15/124 , H04R23/00
摘要： Displacement measuring apparatus for measuring the displacement and movement of an object includes a sensor having an operative surface and circuitry for producing an electrical output signal whose value is dependent upon the area of the operative surface covered by an electrical/magnetic field producing member. The apparatus also includes an elongate, flexible band capable of producing an electric/magnetic field, where the band is attached at one end to the sensor to roll over and cover or unroll from over and uncover the operative surface as the object whose displacement is to be measured is moved. The value of the electrical output signal produced by the circuitry is thus dependent upon the area of the operative surface covered by the band and thus by the position and movement of the object.
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10.发明授权
公开(公告)号：US5551586A
公开(公告)日：1996-09-03
申请号：US293966
申请日：1994-08-24
IPC分类号： G01B7/00 , C23C28/00 , G01D5/14 , G01D5/16 , G01D5/18 , G01P3/487 , G01R33/09 , H01L27/22 , B44C1/22 , C23F1/00 , H01L21/00
摘要： A method of manufacturing a magneto-electric conversion device having a large rate of change of magnetic resistance and which is easy to position with respect to a magnetized surface, and a moving subject displacement detector using a magneto-electric conversion device manufactured by that method. A magnet which rotates together with the rotation of a drive gear is magnetized in alternately differing north and south poles, arranged in an equal sized section from a center portion thereof. An IC chip is positioned opposite to and at a distance from the magnetized surface of the magnet. Magneto-electric conversion devices are located on the IC chip. These magneto-electric conversion devices are formed by repeated alternate depositions, onto a surface of a single-crystal silicon substrate, of magnetic cobalt films having a thickness of several to several tens of angstroms and non-magnetic copper films having a thickness of several to several tens of angstroms.
摘要翻译： 一种制造磁阻变化率大且相对于磁化面容易定位的磁电转换装置的方法，以及使用该方法制造的磁电转换装置的移动体位移检测器。 与驱动齿轮的旋转一起旋转的磁体被磁化为交替不同的北极和南极，其中心部分以相同的尺寸设置。 IC芯片位于与磁体的磁化表面相对且距离磁化表面一定距离处。 磁电转换装置位于IC芯片上。 这些磁电转换装置通过重复交替沉积形成在单晶硅衬底的表面上，具有几个至几十埃厚度的磁性钴膜和非磁性铜膜，其厚度为几个至几十 几十埃。
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