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1.发明申请System and method for sensing angular position using ring magnet with sensor in flux return path 审中-公开在磁通返回路径中使用环形磁体和传感器检测角位置的系统和方法公开(公告)号：US20050151534A1
公开(公告)日：2005-07-14
申请号：US10754026
申请日：2004-01-08
CPC分类号： G01D5/145
摘要： A Hall effect sensor is positioned in the return lines of the magnetic flux of a ring magnet that is engaged with a rotating member the angular position of which is sought to be measured. The signal from the Hall sensor indicates the angular position of the rotating member.
摘要翻译： 霍尔效应传感器位于环形磁铁的磁通量的返回线中，该环形磁体与其角度位置被测量的旋转构件接合。 来自霍尔传感器的信号表示旋转部件的角度位置。
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公开(公告)号：US20050068022A1
公开(公告)日：2005-03-31
申请号：US10675694
申请日：2003-09-30
摘要： A magnetic sensor has magnetically sensitive element located at a side surface, instead of the bottom surface, of a bias magnet, the magnet being located adjacent a magnetic target wheel, wherein the bias magnet is magnetized parallel to the direction of motion of the teeth/slots of the target wheel. The output may be of a single or double frequency. Sampling of output slope can provide information regarding direction of movement of the target wheel. In a second embodiment the bias magnet is magnetized perpendicular to the movement.
摘要翻译： 磁传感器具有位于偏置磁体的侧表面而不是底表面的磁敏元件，磁体位于磁性目标轮附近，其中偏置磁体被平行于齿/ 目标轮的槽。 输出可以是单频或双频。 输出斜率的采样可以提供目标车轮的运动方向信息。 在第二实施例中，偏置磁体垂直于该运动被磁化。
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公开(公告)号：US20050007104A1
公开(公告)日：2005-01-13
申请号：US10615561
申请日：2003-07-08
CPC分类号： G01D5/145
摘要： A sensor assembly for sensing angular position of an object is provided. The assembly may comprise at least one magneto-sensing element having a first axis of rotation. The assembly may further comprise a magnet having a second axis of rotation. At least one of the magnet and the magneto-sensing element are rotatable relative to the other. The respective axes of rotation of the magneto-sensing element and the magnet are non-coincident with respect to one another. The magnet is magnetized along one of the following directions: an axial direction and a radial direction.
摘要翻译： 提供了一种用于感测物体的角度位置的传感器组件。 组件可以包括具有第一旋转轴线的至少一个磁感应元件。 组件还可以包括具有第二旋转轴线的磁体。 磁体和磁感应元件中的至少一个可相对于另一个旋转。 磁感测元件和磁体的各个旋转轴线彼此不重合。 磁体沿着以下方向之一被磁化：轴向和径向。
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公开(公告)号：US20050077894A1
公开(公告)日：2005-04-14
申请号：US10682474
申请日：2003-10-09
CPC分类号： G01D5/24404
摘要： A magnetic sensor provides an output voltage range having first and second linear slopes. Proper selection of magnetic sensor dimensions enables changes in magnetic flux density upon the passage of at least one tooth and one slot of a target wheel past the magnetic sensor to be represented as a linear magnetic sensor output comprised of at least one linear range whereby linear interpolation of position is possible with appropriate signal processing algorithms.
摘要翻译： 磁传感器提供具有第一和第二线性斜率的输出电压范围。 正确选择磁传感器尺寸使得能够在目标轮的至少一个齿和一个槽通过磁性传感器通过之后磁通密度的变化被表示为包括至少一个线性范围的线性磁传感器输出，从而线性插值 的位置是可能的与适当的信号处理算法。
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公开(公告)号：US20070257667A1
公开(公告)日：2007-11-08
申请号：US11416681
申请日：2006-05-03
申请人： Thaddeus Schroeder , Avoki Omekanda
发明人： Thaddeus Schroeder , Avoki Omekanda
IPC分类号： G01B7/30
CPC分类号： G01D5/2073
摘要： A non-contact position sensor comprises a first reactive element for accepting radio frequency (RF) energy from an oscillator and radiating said RF energy to generate an excitation flux. A second reactive element intercepts the excitation flux and an RF voltage is induced therein. An RF voltage detector, operatively coupled to the second reactive element, detects the RF voltage induced in the second reactive element to generate an output voltage. A third reactive element is capable of intercepting the excitation flux to generate a back electromagnetic force (EMF) in the second reactive element such that, upon the third reactive element being displaced relative to at least one of the first and second reactive elements, the RF voltage detector generates a position-dependent output signal indicative of the displacement of the third reactive element.
摘要翻译： 非接触位置传感器包括用于接收来自振荡器的射频（RF）能量并辐射所述RF能量以产生激发通量的第一无功元件。 第二反应元件拦截激励通量并且在其中感应RF电压。 可操作地耦合到第二无功元件的RF电压检测器检测在第二无功元件中感应的RF电压以产生输出电压。 第三无功元件能够拦截激励通量以在第二无功元件中产生反电磁力（EMF），使得在第三无功元件相对于第一和第二无功元件中的至少一个移位时，RF 电压检测器产生指示第三反应元件的位移的与位置相关的输出信号。
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公开(公告)号：US20080284554A1
公开(公告)日：2008-11-20
申请号：US11803236
申请日：2007-05-14
申请人： Thaddeus Schroeder , Avoki Omekanda
发明人： Thaddeus Schroeder , Avoki Omekanda
CPC分类号： G01B7/003 , G01D5/2053 , H01F21/10 , H01F27/2804
摘要： The present invention is directed to a position sensor, comprising a printed circuit board; a pair of stationary planar air-core coils formed in a trapezoidal or rectangular shape and side-by-side one another on the printed circuit board, coil windings being relatively uniformly distributed over a predetermined area of the printed circuit board; and a moving target formed by a sheet of copper on the printed circuit board.
摘要翻译： 本发明涉及一种位置传感器，包括印刷电路板; 在印刷电路板上形成为梯形或矩形并且彼此并排的一对固定平面空心线圈，线圈绕组相对均匀地分布在印刷电路板的预定区域上; 以及由印刷电路板上的铜片形成的移动目标。
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公开(公告)号：US07362096B2
公开(公告)日：2008-04-22
申请号：US11256483
申请日：2005-10-21
申请人： Larry M. Oberdier , Thaddeus Schroeder , Robert J. Disser , Tina M. Dewar , Thomas A. Baudendistel , Bruno Lequesne , Donald T. Morelli
发明人： Larry M. Oberdier , Thaddeus Schroeder , Robert J. Disser , Tina M. Dewar , Thomas A. Baudendistel , Bruno Lequesne , Donald T. Morelli
摘要： An apparatus (10) is set forth for measuring a return signal of a magnetostrictive sensor (20) that detects a force, torque, or pressure. The return signal includes noise, a DC resistance (44), an AC resistance and an inductance and the inductance is shifted ninety degrees from the AC resistance. The apparatus (10) includes a sensor filter (22) to remove the noise from the return signal. A sensor filter (22) shifts the return signal and more specifically, the inductance by an additional angle and the sum of the additional angle and the ninety degrees phase shift is defined as the final detection angle. To detect the inductance at the final detection angle, a wave filter (16) and a reference filter (28) shifts a reference signal by the final detection angle to trigger a first demodulator (26) to detect the inductance at the final detection angle. The inductance detected by the first demodulator (26) varies due to temperature. To remove the temperature from the measured inductance, the apparatus includes a DC detection circuit (42) to detect the DC resistance which is proportional to the temperature across the sensor (20). The DC resistance and the measure inductance are inserted into a correction equation to produce a corrected inductance which is independent of temperature. Instead of inductance, an AC resistance may be used in the equation.
摘要翻译： 提出了一种用于测量检测力，扭矩或压力的磁致伸缩传感器（20）的返回信号的装置（10）。 返回信号包括噪声，直流电阻（44），交流电阻和电感，电感从交流电阻偏移九十度。 装置（10）包括用于从返回信号中去除噪声的传感器滤波器（22）。 传感器滤波器（22）将返回信号更具体地将电感移位一个额外的角度，并将附加角和90度相移之和定义为最终检测角度。 为了在最终检测角度检测电感，滤波器（16）和参考滤波器（28）将参考信号移位最终检测角度，以触发第一解调器（26）以检测最终检测角度的电感。 由第一解调器（26）检测的电感由于温度而变化。 为了从测量的电感中去除温度，该装置包括一个DC检测电路（42），用于检测与传感器（20）两端的温度成比例的直流电阻。 将直流电阻和测量电感插入到校正方程中以产生与温度无关的校正电感。 代替电感，可以在等式中使用AC电阻。
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公开(公告)号：US20070096724A1
公开(公告)日：2007-05-03
申请号：US11256483
申请日：2005-10-21
申请人： Larry Oberdier , Thaddeus Schroeder , Robert Disser , Tina Dewar , Thomas Baudendistel , Bruno Lequesne , Donald Morelli
发明人： Larry Oberdier , Thaddeus Schroeder , Robert Disser , Tina Dewar , Thomas Baudendistel , Bruno Lequesne , Donald Morelli
IPC分类号： G01R33/18
摘要： An apparatus (10) is set forth for measuring a return signal of a magnetostrictive sensor (20) that detects a force, torque, or pressure. The return signal includes noise, a DC resistance (44), an AC resistance and an inductance and the inductance is shifted ninety degrees from the AC resistance. The apparatus (10) includes a sensor filter (22) to remove the noise from the return signal. A sensor filter (22) shifts the return signal and more specifically, the inductance by an additional angle and the sum of the additional angle and the ninety degrees phase shift is defined as the final detection angle. To detect the inductance at the final detection angle, a wave filter (16) and a reference filter (28) shifts a reference signal by the final detection angle to trigger a first demodulator (26) to detect the inductance at the final detection angle. The inductance detected by the first demodulator (26) varies due to temperature. To remove the temperature from the measured inductance, the apparatus includes a DC detection circuit (42) to detect the DC resistance which is proportional to the temperature across the sensor (20). The DC resistance and the measure inductance are inserted into a correction equation to produce a corrected inductance which is independent of temperature. Instead of inductance, an AC resistance may be used in the equation.
摘要翻译： 提出了一种用于测量检测力，扭矩或压力的磁致伸缩传感器（20）的返回信号的装置（10）。 返回信号包括噪声，直流电阻（44），交流电阻和电感，电感从交流电阻偏移九十度。 装置（10）包括用于从返回信号中去除噪声的传感器滤波器（22）。 传感器滤波器（22）将返回信号更具体地将电感移位一个额外的角度，并将附加角和90度相移之和定义为最终检测角度。 为了在最终检测角度检测电感，滤波器（16）和参考滤波器（28）将参考信号移位最终检测角度，以触发第一解调器（26）以检测最终检测角度的电感。 由第一解调器（26）检测的电感由于温度而变化。 为了从测量的电感中去除温度，该装置包括一个DC检测电路（42），用于检测与传感器（20）两端的温度成比例的直流电阻。 将直流电阻和测量电感插入到校正方程中以产生与温度无关的校正电感。 代替电感，可以在等式中使用AC电阻。
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9.发明申请公开(公告)号：US20070107528A1
公开(公告)日：2007-05-17
申请号：US11280923
申请日：2005-11-16
申请人： Thaddeus Schroeder , Elias Taye , Bruno Lequesne
发明人： Thaddeus Schroeder , Elias Taye , Bruno Lequesne
IPC分类号： G01B7/16
摘要： A strain sensor includes a load carrying body configured to strain in response to a load applied along a load path. The sensor further includes a magnetostrictive electrical conductor affixed to the body but out of the load path. Application of the load causes the body to strain, which in turn results in a proportional stress being imparted to the magnetostrictive conductor, altering its magnetic permeability. A circuit is coupled to the conductor to detect such changes in permeability, which are indicative of the applied load.
摘要翻译： 应变传感器包括负载承载体，其构造成响应于沿着负载路径施加的负载而变形。 该传感器还包括一个固定在主体上而是离开负载路径的磁致伸缩电导体。 负载的应用导致身体变形，这又导致赋予磁致伸缩导体的成比例的应力，改变其磁导率。 电路耦合到导体以检测渗透率的这种变化，其表示所施加的负载。
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公开(公告)号：US20060150743A1
公开(公告)日：2006-07-13
申请号：US11034440
申请日：2005-01-11
IPC分类号： G01B7/16
摘要： A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS. 3-7.
摘要翻译： 用于沿轴线（F）测量力的传感器组件包括围绕轴线（F）延伸的电感线圈，用于沿轴线（F）绕轴线（F）建立一个环绕磁通量的环路，并且围绕轴线（F）延伸以形成环形环 围绕轴线（F）的磁通量。 磁致伸缩材料的核心提供磁通环路的第一部分中的磁通量的主路径，并且磁性载体在磁通环路的第二部分中提供用于磁通量的返回路径， 线圈通过芯和载体。 第一界面在芯体和载体之间径向延伸，由此芯体和载体响应于平行于轴线（F）施加的力而在界面处被推动在一起。 图1和图2中示出了芯和载体的各种实施例或组合。 3 - 7。
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