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1. 发明授权

US07362096B2 Robust detection of strain with temperature correction 有权
标题翻译：具有温度校正的应变的鲁棒检测
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
IPC分类号： G01B7/24 , G01L1/12
CPC分类号： G01D5/485 , G01D3/036 , G01L1/125 , G01L1/127
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。

2. 发明申请

US20070096724A1 Robust detection of strain with temperature correction 有权
标题翻译：具有温度校正的应变的鲁棒检测
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
CPC分类号： G01D5/485 , G01D3/036 , G01L1/125 , G01L1/127
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。

3. 发明申请

US20050068022A1 MAGNETIC ENCODER WITH DOUBLE FREQUENCY OUTPUT 失效
标题翻译：具有双向频率输出的磁力编码器
公开(公告)号：US20050068022A1
公开(公告)日：2005-03-31
申请号：US10675694
申请日：2003-09-30
申请人： Avoki Omekanda , Bruno Lequesne , Thaddeus Schroeder
发明人： Avoki Omekanda , Bruno Lequesne , Thaddeus Schroeder
IPC分类号： G01B7/30 , G01D5/14 , G01D5/16 , G01P3/488
CPC分类号： G01P3/488 , G01D5/147
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。

4. 发明申请

US20050007104A1 Sensor assembly for sensing angular position 失效
标题翻译：用于感测角位置的传感器组件
公开(公告)号：US20050007104A1
公开(公告)日：2005-01-13
申请号：US10615561
申请日：2003-07-08
申请人： Bruno Lequesne , Avoki Omekanda , Thaddeus Schroeder
发明人： Bruno Lequesne , Avoki Omekanda , Thaddeus Schroeder
IPC分类号： G01B7/30 , G01D5/14 , G01D5/16
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。

5. 发明申请

US20070107528A1 Versatile strain sensor employing magnetostrictive electrical conductors 失效
标题翻译：采用磁致伸缩电导体的通用应变传感器
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
CPC分类号： G01B7/24 , G01L1/125
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。

6. 发明申请

US20060150743A1 Magnetostrictive strain sensor (airgap control) 有权
标题翻译：磁致伸缩应变传感器（气隙控制）
公开(公告)号：US20060150743A1
公开(公告)日：2006-07-13
申请号：US11034440
申请日：2005-01-11
申请人： Bruno Lequesne , Thaddeus Schroeder , Donald Morelli , Thomas Baudendistel
发明人： Bruno Lequesne , Thaddeus Schroeder , Donald Morelli , Thomas Baudendistel
IPC分类号： G01B7/16
CPC分类号： G01L1/127 , G01L1/125
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。

7. 发明申请

US20090107260A1 Magnetostrictive strain sensor with single piece sensor cavity 审中-公开
标题翻译：具有单片传感器腔的磁致伸缩应变传感器
公开(公告)号：US20090107260A1
公开(公告)日：2009-04-30
申请号：US11977254
申请日：2007-10-24
申请人： Thaddeus Schroeder , Elias Taye , Christopher M. Thrush , Bruno Lequesne
发明人： Thaddeus Schroeder , Elias Taye , Christopher M. Thrush , Bruno Lequesne
IPC分类号： G01L3/10
CPC分类号： G01L9/16
摘要： In one embodiment, a sensor assembly has a magnetostrictive (MS) element and a sensor housing defining at least one active wall. A sensor channel is disposed on a first side of the active wall, with the MS element being disposed in the sensor channel and closely received therein. A fluid is on a second side of the active wall, and the active wall is the wall through which stress from pressure of the fluid causes stress on the MS element. The sensor channel defines an axis parallel to the active wall, and the MS element is positioned adjacent the active wall by sliding the MS element into an end of the sensor channel in a direction parallel to the active wall.
摘要翻译：在一个实施例中，传感器组件具有限定至少一个活动壁的磁致伸缩（MS）元件和传感器外壳。传感器通道设置在有源壁的第一侧上，MS元件设置在传感器通道中并且紧密地接收在其中。流体位于活性壁的第二侧上，活性壁是通过流体压力产生的应力引起MS元件上的应力的壁。传感器通道限定平行于活动壁的轴，并且MS元件通过沿着平行于活动壁的方向将MS元件滑动到传感器通道的端部中而邻近有源壁定位。

8. 发明申请

US20090107249A1 Means and method of sensing pressure using magnetostrictive electrical condutors 审中-公开
标题翻译：使用磁致伸缩电气换能器检测压力的方法和方法
公开(公告)号：US20090107249A1
公开(公告)日：2009-04-30
申请号：US11977322
申请日：2007-10-24
申请人： Thaddeus Schroeder , Elias Taye , Christopher M. Thrush , Bruno Lequesne
发明人： Thaddeus Schroeder , Elias Taye , Christopher M. Thrush , Bruno Lequesne
IPC分类号： G01L1/00
CPC分类号： G01L9/16
摘要： In one embodiment, a sensor assembly has a sensor housing forming a fluid chamber and a magnetostrictive wire that undergoes stress induced by fluid in the chamber. The wire defines opposed ends, each being associated with a respective terminal. Respective hermetic seals penetrate the housing and are coupled to the respective terminals.
摘要翻译：在一个实施例中，传感器组件具有形成流体室的传感器壳体和经受腔室中的流体引起的应力的磁致伸缩导线。线定义相对的端部，每个端子与相应的端子相关联。各个气密密封件穿透壳体并联接到相应的端子。

9. 发明申请

US20070080680A1 Apparatus, sensor, and method for measuring an amount of strain 审中-公开
标题翻译：用于测量应变量的装置，传感器和方法
公开(公告)号：US20070080680A1
公开(公告)日：2007-04-12
申请号：US11244792
申请日：2005-10-06
申请人： Thaddeus Schroeder , Bruno Lequesne , Donald Morelli , Thomas Baudendistel
发明人： Thaddeus Schroeder , Bruno Lequesne , Donald Morelli , Thomas Baudendistel
IPC分类号： G01R33/18
CPC分类号： G01L1/125
摘要： An apparatus, sensor, and a method for measuring an applied strain are provided. The apparatus includes a strain sensor comprising an electrically conductive member composed of a magnetostrictive material. The apparatus further includes a signal generator electrically coupled to the electrically conductive member. The signal generator is configured to generate an electrical current that propagates through the electrically conductive member. The apparatus further includes a measuring circuit electrically coupled to the electrically conductive member. The measuring circuit is configured to measure at least one of an amount of inductance, resistance, and impedance of the electrically conductive member. The apparatus further includes a processor electrically coupled to the measuring circuit. The processor is configured to calculate the amount of force applied to the strain sensor based on at least one of the amount of inductance, resistance, and impedance of the electrically conductive member.
摘要翻译：提供了一种用于测量施加应变的装置，传感器和方法。该装置包括应变传感器，其包括由磁致伸缩材料构成的导电构件。该装置还包括电耦合到导电构件的信号发生器。信号发生器被配置为产生传播通过导电构件的电流。该装置还包括电耦合到导电构件的测量电路。测量电路被配置为测量导电构件的电感，电阻和阻抗的量中的至少一个。该装置还包括电耦合到测量电路的处理器。处理器被配置为基于导电构件的电感，电阻和阻抗的量中的至少一个来计算施加到应变传感器的力的量。

10. 发明申请

US20050151534A1 System and method for sensing angular position using ring magnet with sensor in flux return path 审中-公开
标题翻译：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
申请人： Avoki Omekanda , Bruno Lequesne , Thaddeus Schroeder
发明人： Avoki Omekanda , Bruno Lequesne , Thaddeus Schroeder
IPC分类号： G01B7/14 , G01B7/30 , G01D5/14 , G01D5/16 , G01R33/06
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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