公开(公告)号：US20050160834A1

公开(公告)日：2005-07-28

申请号：US10763499

申请日：2004-01-23

申请人： Thomas Nehl ,  Thomas Steenkiste ,  John Smith ,  Brian Fuller ,  Avoki Omekanda ,  Donald Morelli ,  Joseph Mantese

发明人： Thomas Nehl ,  Thomas Steenkiste ,  John Smith ,  Brian Fuller ,  Avoki Omekanda ,  Donald Morelli ,  Joseph Mantese

IPC分类号： G01L3/10 ,  G01L3/02

CPC分类号： G01L3/102 ,  G01L3/103

摘要： The subject invention provides an assembly for measuring movement of and a torque applied to a shaft extending between first and second ends and being hollow, specifically for measuring rotation and twisting of the shaft. A permanent magnet is disposed within the shaft for producing a parallel magnetic field emanating radially from the shaft. A sensor mechanism is positioned adjacent the shaft to detect the magnetic flux produced in response to the shaft being moved. The sensor mechanism includes a magnetostrictive (MR) material disposed annularly about the shaft and extends between first and second edges. A flux collector extends beyond the first and second edges of the magnetostrictive material to direct the magnetic flux through a Hall sensor to detect an axial component of the magnetic flux in response to twisting. A positional ring extends annularly around and spaced from the shaft and a positional sensor is disposed between the positional ring and the shaft for measuring a radial component of the magnetic flux in response to rotating.

摘要翻译： 本发明提供了一种用于测量施加到在第一和第二端之间延伸并且是中空的轴的转矩和扭矩的组件，具体地用于测量轴的旋转和扭转。 永磁体设置在轴内，用于产生从轴径向发出的平行磁场。 传感器机构定位在轴附近，以检测响应于轴被移动产生的磁通量。 传感器机构包括围绕轴设置成环状并在第一和第二边缘之间延伸的磁致伸缩（MR）材料。 磁通收集器延伸超出磁致伸缩材料的第一和第二边缘，以引导磁通量通过霍尔传感器，以响应于扭转来检测磁通量的轴向分量。 位置环围绕轴线环绕并且间隔开，并且位置传感器设置在位置环和轴之间，用于响应于旋转来测量磁通量的径向分量。

公开(公告)号：US20060016277A1

公开(公告)日：2006-01-26

申请号：US10898676

申请日：2004-07-23

申请人： Thomas Nehl ,  Donald Morelli ,  Thomas Steenkiste ,  John Smith ,  Bruno Lequesne

发明人： Thomas Nehl ,  Donald Morelli ,  Thomas Steenkiste ,  John Smith ,  Bruno Lequesne

IPC分类号： G01L3/10

CPC分类号： G01L3/102 ,  G01L1/125 ,  G01L1/127 ,  G01L3/105

摘要： A magnetostrictive sensor to sense force or torque applied to a structural element to which the magnetostrictive sensor is non-invasively attached by a fixed, intimate contact therewith. The sensor consists of single continuous magnetostrictive layer in operable contact with a coil excited source of magnetic flux. A force or torque applied to the structural element produces a stress transferred to the single continuous magnetostrictive layer, thereby varying the magnetic permeability of the single continuous magnetostrictive layer. The change in the magnetic flux produces a change in the inductance and impedance of the coil, and thereby a detectable change in the voltage across the coil.

摘要翻译： 一种磁致伸缩传感器，用于感测施加到结构元件的力或扭矩，磁致伸缩传感器通过与其的固定的紧密接触而非侵入性地附着在结构元件上。 传感器由与磁通的线圈激励源可操作接触的单个连续磁致伸缩层组成。 施加到结构元件的力或扭矩产生传递到单个连续磁致伸缩层的应力，从而改变单个连续磁致伸缩层的磁导率。 磁通量的变化产生线圈的电感和阻抗的变化，从而产生线圈两端的电压的可检测变化。

公开(公告)号：US20050264254A1

公开(公告)日：2005-12-01

申请号：US10854026

申请日：2004-05-26

申请人： Bruno Lequesne ,  Suresh Gopalakrishnan ,  Avoki Omekanda ,  Thomas Nehl

发明人： Bruno Lequesne ,  Suresh Gopalakrishnan ,  Avoki Omekanda ,  Thomas Nehl

IPC分类号： H02H3/00 ,  H02H7/08

CPC分类号： H02H7/0833 ,  G01R31/343 ,  H02P25/092 ,  H02P29/032

摘要： Certain circuit faults in a phase of a multi-pole, switched reluctance, rotary electrical machine are detected; and the machine is selectively operated with a detected circuit fault when the nature of the fault permits continued operation of the phase and the operation of the phase is desirable. The fault may be one of certain short or open circuits in which at least one of the two current controlling electronic switches is operable to control phase current within predetermined limits. In the continued operation when a fault is detected, (1) the phase current is switched off earlier than it would be in the absence of the fault and/or (2) the maximum phase current is reduced compared with that permitted in the absence of the fault; and either or both of these modifications may be a function of motor speed. If the circuit fault adversely affects current control by an electronic switch normally controlling current level, another electronic switch is substituted for current control.

摘要翻译： 检测到多极，开关磁阻，旋转电机的相位中的某些电路故障; 并且当故障的性质允许相的继续操作并且期望的操作时，机器被选择性地操作具有检测到的电路故障。 故障可以是某些短路或开路中的一个，其中两个电流控制电子开关中的至少一个可操作以在预定限度内控制相电流。 在检测到故障时的继续操作中，（1）相位电流比在没有故障时提前关闭和/或（2）与没有故障时允许的相电流相比，最大相电流减小 错误; 并且这些修改中的一个或两个可以是电机速度的函数。 如果电路故障不利地影响通常控制电流电平的电子开关的电流控制，则另一电子开关代替电流控制。

公开(公告)号：US20050077894A1

公开(公告)日：2005-04-14

申请号：US10682474

申请日：2003-10-09

申请人： Thaddeus Schroeder ,  Bruno Lequesne ,  Avoki Omekanda ,  Thomas Nehl ,  Rassem Henry

发明人： Thaddeus Schroeder ,  Bruno Lequesne ,  Avoki Omekanda ,  Thomas Nehl ,  Rassem Henry

IPC分类号： G01B7/14 ,  G01B7/30 ,  G01D5/244

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。

公开(公告)号：US20050103126A1

公开(公告)日：2005-05-19

申请号：US11018308

申请日：2004-12-21

申请人： Malakondaiah Naidu ,  Joseph Heremans ,  Thomas Nehl ,  John Smith ,  Brian Fuller

发明人： Malakondaiah Naidu ,  Joseph Heremans ,  Thomas Nehl ,  John Smith ,  Brian Fuller

IPC分类号： G01L3/02 ,  G01L3/10

CPC分类号： G01L3/102 ,  G01L3/105

摘要： A torque sensing apparatus for picking up a magnetic field of a magnetostrictive material disposed on a shaft, comprising: a first integrating ring; a second integrating ring; a first fluxgate return strip and a second fluxgate return strip each being connected to the first integrating ring at one end and the second integrating ring at the other end; an excitation coil; and a feedback coil; wherein the first integrating ring and the second integrating ring are configured to be positioned to pick up flux signals along the entire periphery of the ends of the magnetostrictive material.

摘要翻译： 一种用于拾取设置在轴上的磁致伸缩材料的磁场的转矩传感装置，包括：第一积分环; 第二整合环; 第一磁通门返回带和第二磁通门返回带，每个第一磁通门返回带在一端连接到第一积分环，在另一端连接到第二积分环; 励磁线圈; 和反馈线圈; 其中所述第一积分环和所述第二积分环被配置为沿着所述磁致伸缩材料的端部的整个周边拾取通量信号。

公开(公告)号：US20070215420A1

公开(公告)日：2007-09-20

申请号：US11376836

申请日：2006-03-16

申请人： Malakondaiah Naidu ,  Thomas Nehl

发明人： Malakondaiah Naidu ,  Thomas Nehl

IPC分类号： F16F9/512

CPC分类号： F16F9/3292 ,  B60G2204/112 ,  F16F9/38 ,  F16F2230/08 ,  G01D5/00 ,  G01D5/2046

摘要： A piston damper assembly includes a piston damper and a relative position sensor. The piston damper includes a damper body and a piston rod. The piston rod is axially movable within the damper body. The relative position sensor includes an axially-extending magnetic core, an excitation coil, and a position-sensing coil. The axially-extending magnetic core is movable with the piston rod, is located outside the damper body, and has first and second protrusions extending toward the damper body. The excitation coil is wound around the first protrusion, and the position-sensing coil is wound around the second protrusion. A piston-damper dust tube subassembly includes an axially-extending piston-damper dust tube and a relative position sensor. The relative position sensor includes an axially-extending magnetic core, an excitation coil, and a position-sensing coil. The axially-extending magnetic core is attached to the dust tube and has first and second protrusions.

摘要翻译： 活塞阻尼器组件包括活塞阻尼器和相对位置传感器。 活塞阻尼器包括阻尼体和活塞杆。 活塞杆可在阻尼体内轴向移动。 相对位置传感器包括轴向延伸的磁芯，励磁线圈和位置感测线圈。 轴向延伸的磁芯可以与活塞杆一起移动，位于阻尼器主体的外部，并且具有向阻尼器体延伸的第一和第二突起。 励磁线圈缠绕在第一突起上，并且位置感测线圈缠绕在第二突起上。 活塞式减震器灰尘管子组件包括一个轴向延伸的活塞阻尼器灰尘管和相对位置传感器。 相对位置传感器包括轴向延伸的磁芯，励磁线圈和位置感测线圈。 轴向延伸的磁芯被附接到灰尘管并具有第一和第二突起。

公开(公告)号：US20050120795A1

公开(公告)日：2005-06-09

申请号：US11005111

申请日：2004-12-06

申请人： Thomas Nehl ,  Fang Deng

发明人： Thomas Nehl ,  Fang Deng

IPC分类号： B60G17/019 ,  F16F9/32 ,  G01D5/20 ,  G01P3/50 ,  G01P3/52 ,  G11B3/00 ,  G01P3/44

CPC分类号： B60G17/01933 ,  B60G2204/112 ,  B60G2400/202 ,  B60G2401/172 ,  F16F9/3292 ,  G01D5/2033 ,  G01P3/50 ,  G01P3/52

摘要： A velocity sensor including a damper assembly having a central axis, a magnet extending parallel to the central axis, the magnet having a magnetic axis radially oriented with the central axis, and a coil extending parallel to the central axis and radially oriented with the central axis, wherein movement of the damper assembly with respect to the magnet induces a voltage in the coil.

摘要翻译： 一种速度传感器，包括具有中心轴的阻尼器组件，平行于中心轴线延伸的磁体，磁体具有径向定向的中心轴线的磁轴线和平行于中心轴线延伸的线圈， 其中阻尼器组件相对于磁体的运动在线圈中引起电压。

公开(公告)号：US20060260891A1

公开(公告)日：2006-11-23

申请号：US11407673

申请日：2006-04-20

申请人： William Kruckemeyer ,  Taeyoung Han ,  Thomas Nehl ,  Robert Foister

发明人： William Kruckemeyer ,  Taeyoung Han ,  Thomas Nehl ,  Robert Foister

IPC分类号： F16F15/03

CPC分类号： F16F9/535

摘要： A magnetorheological (MR) piston assembly includes an MR piston, a rod, and a guide member. The guide member includes an MR fluid passageway and is attached to at least one of the piston and rod. A perimeter of a projection of the guide member onto a plane perpendicular to the longitudinal axis surrounds and is spaced apart from a perimeter of a projection of the MR piston onto the plane A damper includes an MR piston assembly and a tube. The piston assembly includes a piston, a rod, and a guide member. The guide member includes an MR fluid passageway and is attached to at least one of the piston and rod. The guide member diameter is greater than the piston diameter. The tube surrounds and is radially spaced apart from the piston and surrounds the guide member, wherein the guide member makes sliding contact with the tube.

摘要翻译： 磁流变（MR）活塞组件包括MR活塞，杆和引导构件。 引导构件包括MR流体通道并且附接到活塞和杆中的至少一个。 引导构件在与纵向轴线垂直的平面上的突出部的周边包围并与MR活塞的平面A的突起的周边间隔开。阻尼器包括MR活塞组件和管。 活塞组件包括活塞，杆和引导构件。 引导构件包括MR流体通道并且附接到活塞和杆中的至少一个。 导向件直径大于活塞直径。 管围绕并且与活塞径向间隔开并且围绕引导构件，其中引导构件与管滑动接触。

公开(公告)号：US20050210870A1

公开(公告)日：2005-09-29

申请号：US10811516

申请日：2004-03-29

申请人： Janusz Goldasz ,  Zbigniew Szklarz ,  Alexander Alexandridis ,  Thomas Nehl ,  Fang Deng ,  Olivier Valee

发明人： Janusz Goldasz ,  Zbigniew Szklarz ,  Alexander Alexandridis ,  Thomas Nehl ,  Fang Deng ,  Olivier Valee

IPC分类号： F16D37/02 ,  F16F9/32 ,  F16F9/53

CPC分类号： F16F9/3214 ,  F16F9/535

摘要： A high-performance piston core including a first piston cylinder and a second piston cylinder, with a piston center longitudinally disposed between and magnetically coupling the first piston cylinder and the second piston cylinder. The piston center is made of high-performance magnetic material, such as Cobalt steel (CoFe), Silicon steel (SiFe), Vanadium/Cobalt steel (Permendur), alloys thereof, or the like. The high-performance magnetic materials exhibit high magnetic permeability and reduce the magnetic reluctance of flux bottlenecks. In addition, high-performance magnetic materials typically saturate at a higher flux density than the conventional magnetic materials. The first piston cylinder and the second piston cylinder can be made of conventional magnetic material, such as low-carbon steel. The first piston cylinder can include a ring disposed about an end, where the end is longitudinally attached and magnetically coupled to the piston center.

摘要翻译： 一种高性能活塞芯，包括第一活塞气缸和第二活塞气缸，活塞中心纵向设置在第一活塞气缸和第二活塞气缸之间，并且磁性联接。 活塞中心由钴（CoFe），硅钢（SiFe），钒/钴钢（Permendur），合金等高性能磁性材料制成。 高性能磁性材料具有高磁导率，降低了磁通量瓶颈的磁阻。 此外，高性能磁性材料通常以比常规磁性材料更高的磁通密度饱和。 第一活塞缸和第二活塞缸可由常规的磁性材料制成，例如低碳钢。 第一活塞气缸可以包括围绕端部设置的环，其中端部纵向附接并且磁耦合到活塞中心。