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公开(公告)号：US5644225A
公开(公告)日：1997-07-01
申请号：US632874
申请日：1996-04-16
CPC分类号： G01D18/00 , G01B7/30 , G01D5/2033
摘要： A method is provided to calibrate an angular position sensor by using an electrical coil to provide a magnetic field that simulates the presence of a permanent magnet. By successively selecting currents to flow through the electrical coil and by moving the electrical coil through at least two angular positions, the gain of an output relationship between a signal from a magnetically sensitive component and the angular position of the coil can be determined. By changing the intensity of the electrical current flowing through the coil, the intensity of the magnetic field emanating from the coil can be selected. In order to achieve the appropriate null offset characteristic of the device, the electrical coil is moved until a preselected output voltage is achieved. By comparing the angular position of the coil when the output voltage is achieved to an angular position of the coil for the desired output signal characteristic, a calibration angle can be determined. A ferromagnetic object is then magnetized with a magnetic field of the determined intensity and at an angle equal to the calibration angle.
摘要翻译： 提供了一种通过使用电线圈来校正角位置传感器以提供模拟永磁体的存在的磁场的方法。 通过连续地选择电流流过电线圈并且通过使电线圈移动通过至少两个角位置，可以确定来自磁敏部件的信号与线圈的角位置之间的输出关系的增益。 通过改变流过线圈的电流的强度，可以选择从线圈发出的磁场的强度。 为了实现器件的适当的零点偏移特性，电线圈被移动直到达到预选的输出电压。 通过将实现输出电压时的线圈的角位置与期望的输出信号特性的线圈的角位置进行比较，可以确定校准角度。 然后用确定的强度的磁场和等于校准角度的角度对铁磁物体进行磁化。
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公开(公告)号：US5694039A
公开(公告)日：1997-12-02
申请号：US614792
申请日：1996-03-07
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
CPC分类号： G01B7/30
摘要： A rotational position sensor, or angular position sensor, that having two pole pieces. Each of the pole pieces has a first end portion and a second end portion. The two second end portions are arranged in overlapping parallel association to provide a gap between them. Two magnetically sensitive components are disposed in the gap between the second end portions of the two pole pieces. The two magnetically sensitive components are used to provide redundancy in the event that one of the magnetically sensitive components experiences a failure.
摘要翻译： 具有两个极片的旋转位置传感器或角位置传感器。 每个极片具有第一端部和第二端部。 两个第二端部以重叠的平行关联布置以在它们之间提供间隙。 两个磁敏部件设置在两个极片的第二端部之间的间隙中。 在磁敏元件之一遇到故障的情况下，两个磁敏元件用于提供冗余。
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公开(公告)号：US5613290A
公开(公告)日：1997-03-25
申请号：US491773
申请日：1995-06-19
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
CPC分类号： F16B5/0233 , G01D11/30 , G01P1/00 , Y10T29/4984 , Y10T29/49845 , Y10T29/49934 , Y10T29/49948 , Y10T29/49954 , Y10T403/4674 , Y10T403/60
摘要： An apparatus and method is provided for attaching a gear tooth sensor to an object, such as an engine block of an automobile. A clamping bar and a deformable conical washer are associated with a tubular portion of the sensor in such a way that rigid attachment of the clamping bar to the engine block, such as through the use of a threaded bolt, deforms the conical washer into a generally flat shape and, in the process, causes a distal end of the tubular portion of the sensor to move away from a target by a predetermined distance. Prior to deforming the deformable washer between the clamping bar and the engine block, the sensor is moved into contact with a rotatable target, such as a gear. The distal end of the in contact with the target, the clamping bar is used to compress and deform the washer so that the deformation of the washer causes the distal end of the tubular portion to move away from the target by a predetermined amount that results in an accurately set gap between a magnetically sensitive component within the sensor and the teeth of the rotatable target.
摘要翻译： 提供了一种用于将齿轮齿传感器附接到诸如汽车的发动机缸体的物体的装置和方法。 夹紧杆和可变形的锥形垫圈与传感器的管状部分相关联，使得夹紧杆刚性地附接到发动机缸体，例如通过使用螺栓将锥形垫圈变形成一般 平坦的形状，并且在该过程中，导致传感器的管状部分的远端远离目标远离预定距离。 在使可变形垫圈在夹紧杆和发动机缸体之间变形之前，传感器被移动成与诸如齿轮的可转动的目标接触。 与目标接触的远端，夹紧杆用于压缩和变形垫圈，使得垫圈的变形使得管状部分的远端远离目标移动预定量，导致 传感器内的磁敏部件与可旋转靶的齿之间的精确设定间隙。
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4.发明授权Throttle position sensor adapted to maintain a fixed position relative to a shaft centerline 失效节气门位置传感器适于保持相对于轴中心线的固定位置
公开(公告)号：US5208532A
公开(公告)日：1993-05-04
申请号：US860876
申请日：1992-03-31
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
IPC分类号： G01B7/30
CPC分类号： G01B7/30
摘要： An angular position sensor is provided with a carrier assembly in which a magnetically sensitive device is disposed. The carrier assembly has a portion which is shaped to receive a rotatable member in sliding association therein. A magnet is disposed within the rotatable member and is rotatable in response to rotation of a shaft attached to the rotatable member. A pivot means is provided for permitting the carrier assembly to move relative to a stationary housing and in response to movement of the rotatable member. A means for urging the carrier assembly toward the central axis of the rotatable member is also provided to maintain a consistent relationship between a magnetically sensitive device disposed within the carrier assembly and the magnetic disposed within the rotatable shaft.
摘要翻译： 角位置传感器设置有载置组件，其中设置有磁敏装置。 托架组件具有一部分，其形状适于容纳与其滑动关联的可旋转构件。 磁体设置在可旋转构件内并且可响应于连接到可旋转构件的轴的旋转而旋转。 提供了枢转装置，用于允许托架组件相对于固定的壳体移动并且响应于可旋转构件的运动而移动。 还提供用于将载体组件推向可旋转构件的中心轴线的装置，以保持设置在载体组件内的磁敏装置与设置在可旋转轴内的磁体之间的一致关系。
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5.发明授权Angular position sensor with decreased sensitivity to shaft position variability 失效角度位置传感器对轴位置变化的灵敏度降低
公开(公告)号：US5164668A
公开(公告)日：1992-11-17
申请号：US804854
申请日：1991-12-06
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
摘要： An angular position sensor is provided with first and second pole pieces that extend from regions proximate a rotatable magnet to regions proximate a magnetically sensitive device. The pole pieces provide defined magnetic paths of lowered reluctance that confine the lines of flux extending between the rotatable magnet and the magnetically sensitive device. The placement of the rotatable magnet between first and third pole piece segments of the invention significantly reduces the sensitivity of the sensor to variations in position of the rotatable magnet and therefore increases the reliability of the measurement system. This reduced sensitivity inhibits the degradation of operational accuracy that could otherwise be caused by inaccuracies in the magnet's shaft position, large tolerances in the dimensions of the shaft diameter and the bearing diameter and variable location of the shaft because of excessive bearing wear.
摘要翻译： 角位置传感器设置有第一和第二极片，其从靠近可旋转磁体的区域延伸到靠近磁敏装置的区域。 磁极片提供限定了可旋转磁体和磁敏装置之间延伸的磁通线的降低磁阻的限定磁路。 本发明的第一和第三极片段之间的可旋转磁体的放置显着地降低了传感器对可旋转磁体的位置变化的灵敏度，因此提高了测量系统的可靠性。 这种降低的灵敏度可以抑制否则可能由于磁体轴位置的不准确性，轴直径的尺寸公差，轴承直径以及由于轴承磨损过大导致轴的可变位置引起的操作精度的降低。
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公开(公告)号：US07245122B2
公开(公告)日：2007-07-17
申请号：US11315924
申请日：2005-12-21
CPC分类号： G01D5/147 , F16H59/105
摘要： A vane actuated drive mode sensor is generally composed of two primary components, including a drive mode sensor array and an actuator. The sensor array can be provided as a housing composed of a plurality of Hall Effect (HE) sensors, magnets and the electronics associated with the sensors. The actuator, also referred to as a vane, can be provided as a plate constructed from a magnetic material, such as, for example, ferrous steel, and can be provided with holes punched thereon at different places depending on the requirement of a user. The actuator can be connected to a user's driver and can slide on and/or within the housing.
摘要翻译： 叶片致动驱动模式传感器通常由两个主要部件组成，包括驱动模式传感器阵列和致动器。 传感器阵列可以设置为由多个霍尔效应（HE）传感器，磁体和与传感器相关联的电子装置组成的壳体。 致动器（也称为叶片）可以设置为由诸如黑色金属的磁性材料构成的板，并且可以根据使用者的要求在不同的位置设置有冲孔的孔。 致动器可以连接到用户的驾驶员，并且可以在壳体上和/或内部滑动。
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公开(公告)号：US5457384A
公开(公告)日：1995-10-10
申请号：US232564
申请日：1994-04-25
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
IPC分类号： G01P3/488 , F16B5/02 , G01B21/20 , G01D5/12 , G01D11/30 , G01P1/00 , G01B7/14 , G01P3/42 , F16B21/20
CPC分类号： F16B5/0233 , G01D11/30 , G01P1/00 , Y10T29/4984 , Y10T29/49845 , Y10T29/49934 , Y10T29/49948 , Y10T29/49954 , Y10T403/4674 , Y10T403/60
摘要： An apparatus and method is provided for attaching a gear tooth sensor to an object, such as an engine block of an automobile. A clamping bar and a deformable conical washer are associated with a tubular portion of the sensor in such a way that rigid attachment of the clamping bar to the engine block, such as through the use of a threaded bolt, deforms the conical washer into a generally flat shape and, in the process, causes a distal end of the tubular portion of the sensor to move away from a target by a predetermined distance. Prior to deforming the deformable washer between the clamping bar and the engine block, the sensor is moved into contact with a rotatable target, such as a gear. The distal end of the in contact with the target, the clamping bar is used to compress and deform the washer so that the deformation of the washer causes the distal end of the tubular portion to move away from the target by a predetermined amount that results in an accurately set gap between a magnetically sensitive component within the sensor and the teeth of the rotatable target.
摘要翻译： 提供了一种用于将齿轮齿传感器附接到诸如汽车的发动机缸体的物体的装置和方法。 夹紧杆和可变形的锥形垫圈与传感器的管状部分相关联，使得夹紧杆刚性地附接到发动机缸体上，例如通过使用螺栓将锥形垫圈变形成一般 平坦的形状，并且在该过程中，导致传感器的管状部分的远端远离目标远离预定距离。 在使可变形垫圈在夹紧杆和发动机缸体之间变形之前，传感器被移动成与诸如齿轮的可转动的目标接触。 与目标接触的远端，夹紧杆用于压缩和变形垫圈，使得垫圈的变形使得管状部分的远端远离目标移动预定量，导致 传感器内的磁敏部件与可旋转靶的齿之间的精确设定间隙。
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公开(公告)号：US4641003A
公开(公告)日：1987-02-03
申请号：US669184
申请日：1984-11-06
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
CPC分类号： H01H13/186 , H01H13/14 , H01H11/0006
摘要： A lever operated device having an interchangable lever mounting feature is disclosed in which a body or housing is formed with a cylindrical cavity which holds a retainer configured with a recess to receive a lateral pivot portion of an operator lever. The lever is held captive with the pivot portion thereof confined to the recess in the retainer by a bounding surface of the cavity when the retainer is in place.
摘要翻译： 公开了一种具有可互换杠杆安装特征的杠杆操作装置，其中主体或壳体形成有圆柱形腔，其保持构造有凹部的保持器，以容纳操作杆的横向枢转部分。 当保持器就位时，杠杆被限制在限制在保持器中的凹部的枢转部分的空腔的边界表面上。
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9.发明授权Rotational position sensor with mechanical adjustment of offset and gain signals 失效旋转位置传感器，具有偏移和增益信号的机械调节
公开(公告)号：US5627465A
公开(公告)日：1997-05-06
申请号：US548108
申请日：1995-10-25
申请人： Eugene D. Alfors , Ronald G. Cox
发明人： Eugene D. Alfors , Ronald G. Cox
摘要： An angular position sensor is provided with a rotatable magnetic structure that comprises a primary magnet and a secondary magnet. The primary and secondary magnets are adjusted in position relative to each other in order to achieve an adjustability of the gain and offset characteristic of an output signal from a magnetically sensitive component disposed within the magnetic field of the magnetic structure. The primary and secondary magnets are rigidly maintained in position relative to each other and disposed for rotation about an axis of rotation. Each magnet has a magnetic axis extending though its first and second magnetic poles. The two magnetic axes rotate within parallel planes that are each perpendicular to the axis of rotation of the magnetic structure. The gain characteristic of the output signal from the magnetically sensitive component can be advantageously affected by changing the linear distance between the first and second planes in which the first and second magnetic axes of the primary and secondary magnets rotate. The offset characteristic of the output signal from the magnetically sensitive component can be advantageously affected by changing the angular dimension between the first and second magnetic axes of the primary and secondary magnets.
摘要翻译： 角位置传感器设置有包括初级磁体和次级磁体的可旋转磁性结构。 初级和次级磁体相对于彼此调节位置，以便实现输出信号从设置在磁性结构的磁场内的磁敏部件的增益和偏移特性的可调节性。 主磁体和次磁体被相对于彼此刚性地保持在适当位置并且被设置成围绕旋转轴线旋转。 每个磁体具有延伸通过其第一和第二磁极的磁轴。 两个磁轴在与磁性结构的旋转轴线垂直的平行平面内旋转。 通过改变第一和第二磁体的第一和第二磁性轴旋转的第一和第二平面之间的直线距离，可以有利地影响来自磁敏部件的输出信号的增益特性。 通过改变初级和次级磁体的第一和第二磁性轴之间的角度尺寸，可以有利地影响来自磁敏部件的输出信号的偏移特性。
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10.发明授权Rotational position sensor with a two-part rotatable member to resist jamming 失效旋转位置传感器具有两部分可旋转构件，可抵抗卡住
公开(公告)号：US5512820A
公开(公告)日：1996-04-30
申请号：US405651
申请日：1995-03-17
申请人： Eugene D. Alfors
发明人： Eugene D. Alfors
CPC分类号： G01D5/145
摘要： A rotational position sensor is provided with a rotatable member that comprises first and second portions. The first portion is generally cylindrical and has an opening that is shaped to receive the second portion therein with a resilient spring disposed in the annular gap between the first and second portions when this assembly is accomplished. A magnet is molded into or otherwise affixed to an extension of the first portion and the second portion of the rotatable member is shaped to receive a shaft. Relative rotation is permitted between the first and second portions of the rotatable member so that the shaft will not be ceased in position if the rotatable member is jammed within a stationary portion of the sensor. If jamming occurs, such as that which might be caused by icing, the first portion of the rotatable sensor might be ceased in position and restricted from further rotational movement. However, the second portion will remain free to rotate with the shaft because of the relative angular movement that is permitted between the first and second portions. This movement is in association with the changing torsion of the spring disposed in the gap between the first and second portions. When the ceasing of the first portion of the rotatable member is eliminated, the first and second portions of the rotatable member move back to their regular positions relative to each other and continued normal operation is possible.
摘要翻译： 旋转位置传感器设置有包括第一和第二部分的可旋转构件。 第一部分通常是圆柱形的，并且具有开口，该开口被成形为在其中接纳第二部分时具有设置在第一和第二部分之间的环形间隙中的弹性弹簧，当该组件完成时。 磁体被模制成或以其他方式固定到第一部分的延伸部分，并且可旋转构件的第二部分成形为容纳轴。 允许在可旋转构件的第一和第二部分之间进行相对旋转，使得如果可旋转构件卡在传感器的固定部分内，则轴不会停止在适当的位置。 如果发生卡塞，例如可能由结冰引起的干扰，则可旋转传感器的第一部分可能会停止在适当的位置并受到进一步旋转运动的限制。 然而，由于在第一和第二部分之间允许的相对角度运动，第二部分将随着轴自由旋转。 该运动与设置在第一和第二部分之间的间隙中的弹簧的变化的扭转相关联。 当可旋转构件的第一部分的停止被消除时，可旋转构件的第一和第二部分相对于彼此移动回其常规位置，并且可以继续正常操作。
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