公开(公告)号：EP1709419A4

公开(公告)日：2007-10-03

申请号：EP04806721

申请日：2004-12-30

申请人： NEXENSE LTD

发明人： BERNSTEIN MICHAEL ,  ARIAV ARIE ,  RAVITCH VLADIMIR

IPC分类号： G01N1/00 ,  G01L3/14 ,  G01L5/13 ,  G01L5/24 ,  G01N20060101

CPC分类号： G01L3/1428 ,  G01L1/165

摘要： A method and apparatus for measuring the force applied by a first member 25 coupled to a second member 26 by a connecting body 6 by transmitting a cyclically-rrepeating energy wave through the connecting body from a first location thereon to a second location thereon, measuring the transit time of the cyclically-repeating energy wave from the first location to the second location and utilizing the measuring transit time to produce a measurement of the force. In the preferred described embodiment, the connecting body is a fastening plate 6 which fastens a drive shaft 3 to a driven shaft 5 and measures the torque output of the drive shaft.

公开(公告)号：EP1776570B1

公开(公告)日：2007-09-19

申请号：EP05776706.3

申请日：2005-07-08

申请人： Leopold Kostal GmbH & Co. KG

发明人： HEITE, Volker ,  NIEDING, Klaus ,  ABEL, Thomas ,  MOLDENHAUER, Knut ,  VOLMER, Werner

IPC分类号： G01L3/14 ,  G01L5/22

CPC分类号： G01L5/221 ,  G01L3/14

摘要： The invention relates to a torsion module for a torque detection device of a steering system or a power-assisted steering system, comprising a spoked wheel provided with an inner rim that can be fixed to the steering shaft, and an outer rim which is connected to the inner rim by means of flexional spokes, concentrically to the same. The invention also relates to a method for producing one such torsion module. The aim of the invention is to provide a torsion module that can be easily and economically produced with the required level of precision. To this end, the spoked wheel is embodied as a metal diecast part, the flexional spokes being respectively connected, as inserts, to the inner and outer rims in a positively locking manner, by means of the diecasting process.

公开(公告)号：EP1181515B1

公开(公告)日：2007-08-01

申请号：EP00921590.6

申请日：2000-04-13

申请人： Magna-Lastic Devices, Inc.

发明人： JONES, Chris

IPC分类号： G01L3/02 ,  G01L3/14

CPC分类号： G01L3/102 ,  G01L3/103

摘要： A magnetoelastic torque sensor (2) for providing an output signal indicative of the torque transmitted between radially separated locations of a diskshaped member (10) includes a magnetoelastically active, ferromagnetic, magnetostrictive region which is magnetically polarized in a single circumferential direction and possesses sufficient magnetic anisotropy to return the magnetization in the region, following the application of torque to the member, to the single circumferential direction when the applied force is reduced to zero. First and second torque transmitting elements are directly attached to or form a part of the member at its central axis of rotation and its periphery in such a manner that torque is proportionally transmitted between the member and the transmitting elements. Magnetic field sensor means are mounted proximate (26, 28) to the member to sense the magnitude of the magnetic field produced by the member in response to the torque which is radially transmitted through the member between the first and second transmitting elements. The member is preferably formed of a polycrystalline material wherein at least 50 % of the distribution of local magnetizations lie within a 90° quadrant symmetrically disposed around the single circular direction and has a coercivity sufficiently high that the field arising from the member does not magnetize proximate regions of the member to give rise to parasitic magnetic fields which are of sufficient strength to destroy the usefulness, for force sensing purposes, of the net magnetic field seen by the magnetic field sensor means.

公开(公告)号：EP1716399A1

公开(公告)日：2006-11-02

申请号：EP04804382.2

申请日：2004-12-29

申请人： NCTEngineering GmbH

发明人： MAY, Lutz

IPC分类号： G01L3/10 ,  G01L1/12 ,  G01L3/14 ,  G01L25/00

CPC分类号： H01F13/006 ,  F16H59/70 ,  G01D5/145 ,  G01L3/102 ,  G01L3/103 ,  Y10T29/49075

摘要： A torque sensor having a sensor element, wherein the sensor element is manufactured in accordance with the manufacturing steps of applying a first current pulse to the sensor element, wherein the first current pulse is applied such that there is a first current flow in a first direction along a longitudinal axis of the sensor element, wherein the first current pulse is such that the application of the current pulse generates a magnetically encoded region in the sensor element.

摘要翻译： 一种具有传感器元件的扭矩传感器，其中传感器元件根据将第一电流脉冲施加到传感器元件的制造步骤来制造，其中第一电流脉冲被施加使得在第一方向 沿着所述传感器元件的纵轴，其中所述第一电流脉冲使得所述电流脉冲的施加在所述传感器元件中产生磁编码区域。

公开(公告)号：EP1625371A1

公开(公告)日：2006-02-15

申请号：EP04753002.7

申请日：2004-05-20

申请人： Crane Nuclear, Inc.

发明人： SMITH, Christopher, P.

IPC分类号： G01L1/22 ,  G01L3/14 ,  G01B7/16 ,  G01G3/14

CPC分类号： G01G3/1412 ,  G01B7/18 ,  G01L1/2206 ,  G01L1/2243 ,  G01L3/1457

摘要： A device for measuring forces on a sensor body, comprising a beam (110). An array (120) comprising at least one recess is formed in the beam. The array has a length-to-height ration of less than 1.0. At least one strain transducer (130) is mounted in at least one recess, wherein when incorporated in a sensor body the device is sufficiently rigid to provide low overall deflection while providing adequately high metric strain levels. Also given is a frame device with a clevis. Furthermore a deflectometer, dilatometer or diametric extensometer. Torque is measured with concentric rings and spokes bearing recesses.

公开(公告)号：EP1082592B1

公开(公告)日：2005-11-16

申请号：EP99909803.1

申请日：1999-03-03

申请人： GRABER PRODUCTS, INC.

发明人： AMBROSINA, Jesse ,  PAWELKA, Gerhard

IPC分类号： G01L3/10 ,  G01L3/24 ,  G01L3/14 ,  G01L1/22

CPC分类号： G01L3/242 ,  B62M6/40 ,  B62M6/45 ,  B62M6/50 ,  G01L3/108 ,  G01L3/1457

公开(公告)号：EP0935128A4

公开(公告)日：2004-07-21

申请号：EP97909583

申请日：1997-10-22

申请人： SANYO ELECTRIC CO

发明人： KAKUTANI KAZUSHIGE ,  AOKI HIDEAKI ,  KAWAKAMI HIDEO ,  TOMIGASHI YOSHIO

IPC分类号： B62M6/40 ,  B62M6/45 ,  B62M6/50 ,  B62M6/60 ,  B62M6/75 ,  G01L3/14 ,  B62M23/02 ,  G08C19/00

CPC分类号： B62M6/60 ,  B62M6/40 ,  B62M6/45 ,  B62M6/75 ,  G01L3/1435

公开(公告)号：EP1395801A1

公开(公告)日：2004-03-10

申请号：EP02778885.0

申请日：2002-06-07

申请人： Fast Technology AG

发明人： MAY, Lutz, Axel

IPC分类号： G01L3/14

CPC分类号： G01L3/105 ,  G01L3/104 ,  G01L3/1435

摘要： A torque transducer system comprises a disc (20) through which torque is transmitted in a radial direction and which has a magnetised annular region (26) which emanates a torque-dependent magnetic field. A non-contacting magnetic field sensor (L1) detects the emanated field. The annular region (26) comprises segments (30) by means of which a pulsed magnetic field is emanated as the disc (20) rotates. The segments (30) may be magnetically unipolar and spatially separated or of alternate polarity (Fig 2). They may be integral with the disc (20) of or material applied to the disc (Fig 3) that is magnetised or that segments an underlying magnetisation in the disc. The preferred direction of magnetisation is radial and the effect of the orientation of a sensor (L) with respect to the radial field is discussed. One sensor arrangement comprises a pair of sensors (L1: L2) oriented at an angle to one another with reference to the radial field. The teachings of the invention can be applied to the segmentation of an integral transducer region of a torque-transmitting shaft, the region having an annulus of axially-directed remanent magnetisation.

公开(公告)号：EP1203210B1

公开(公告)日：2004-01-07

申请号：EP00953308.4

申请日：2000-08-14

申请人： Fast Technology AG

发明人： MAY, Lutz Axel

IPC分类号： G01L3/10 ,  G01L1/12 ,  G01L3/14

CPC分类号： G01L3/102 ,  G01L1/125 ,  G01L3/1435

摘要： A magnetic torque tranducer for a structure such as a disc (10) through which torque is transmitted between a central shaft (20) to which the disc is mounted and an outer periphery such as a gear wheel (24). The intervening region through which torque is transmitted is magnetised to provide a transducer element (22) having two magnetised, annular regions (12, 14: 54, 56) which cooperate to emanate a magnetic field (Ms) that is torque-dependent. The two magnetised regions may be longitudinally-magnetised (12, 14) through the disc or circumferentially magnetised (54, 56) with opposite polarities. A sensor assembly of non-contacting sensors (26a-26c) is used to detect the emanated field and connected in circuitry to provide a torque-dependent signal. In an alternative a single magnetised annular region is empLoyed. The annular region or regions need not be a complete annulus. The same disC-like structure can also be used as force sensor for measuring bending moments or other forces which result in stress occurring in the disc.

摘要翻译： 用于诸如盘（10）之类的结构的磁扭矩转换器通过该磁转矩转换器在安装盘的中心轴（20）和诸如齿轮（24）的外周之间传递扭矩。 扭矩传递通过的插入区域被磁化以提供具有两个磁化的环形区域（12,14：54,56）的换能器元件（22），所述区域协作以发出与扭矩相关的磁场（Ms）。 两个磁化区域可以通过磁盘纵向磁化（12,14）或者具有相反极性的圆周磁化（54,56）。 非接触式传感器（26a-26c）的传感器组件被用于检测发出的电场并在电路中连接以提供与转矩有关的信号。 在另一个选择中，强制使用单个磁化环形区域。 环形区域不需要是完整的环形。 也可以使用相同的类碟形结构作为力传感器，用于测量弯曲力矩或导致盘中出现应力的其他力。

公开(公告)号：EP1376086A2

公开(公告)日：2004-01-02

申请号：EP03013818.4

申请日：2003-06-18

申请人： Eduard Wille GmbH & Co KG

发明人： Herbold, Siegfried ,  Schwafertz, Rainer ,  Wilhelm, Joachim

IPC分类号： G01L3/14 ,  G01L25/00

CPC分类号： G01L25/003 ,  B25B23/14 ,  G01L3/1457

摘要： Die Erfindung betrifft einen Drehmomentsensor (10) enthaltend einen inneren Körper (12) mit einer Achse (19), in bezug auf welche ein Drehmoment zu messen ist, und einen äußeren Ringkörper (14), der den inneren Körper (12) konzentrisch umgibt und über radiale Stege (16,18) mit dem inneren Körper (12) verbunden ist. Eine erste Art von Stegen (18) hat in Umfangsrichtung relativ große Breite aber relativ geringe axialen Abmessungen. Eine zweite Art von Stegen (16) ist in Umfangsrichtung relativ schmal, besitzt aber relativ große axiale Abmessungen. Meßelemente (26) zur Torsionsmessung sind auf den Stegen (18) angeordnet. Zum Kalibrieren von Schraubwerkzeugen ist der Ringkörper (14) stationär gehalten. Die Stege (18) bilden erstes Kreuz von vier um jeweils 90° gegeneinander um die Achse winkelversetzten Stege (18). Die Stege (16) bilden ein zweites Kreuz von vier um jeweils 90° um die Achse gegeneinander winkelversetzten Stegen (16). Das zweite Kreuz ist um 45° um die Achse (19) gegen das erste Kreuz winkelversetzt. Der innere Körper (12) weist eine zentrale, zu der Achse (19) koaxiale Aufnahme (40,42) zum Eingriff eines zu prüfendes Schraubwerkzeuges auf. Meßelemente (26) sind auf allen vier Stegen (18) angeordnet und so zusammengeschaltet, daß unter Kompensation von Störkräften ein Meßwert für ein um die Achse (19) auf den inneren Körper (12) wirkendes Drehmoment erhalten wird.

摘要翻译： 扭矩传感器（10）具有由外环体（14）包围的内体（12）。 桥接件（16,18）以起始布置将内部主体连接到外部主体。 传感器包括用于承受力的装置和用于检测扭转的桥接件（18）上的测量元件（26）。 桥接件具有不同的宽度并且可以具有不同的高度。