公开(公告)号：US20030159503A1

公开(公告)日：2003-08-28

申请号：US10297758

申请日：2003-03-03

Inventor： Federico Mancuso ,  Damiano Belluzo ,  Giuseppe Matrascia

IPC: G01M017/02 ,  B60C023/06 ,  B60C019/00 ,  G01L001/12 ,  B60C005/00

CPC classification number: B60T8/172 ,  B60C23/066 ,  Y10T152/10495

Abstract: A system for determining the state of shear deformation of a crown portion of a tyre (1) during the running of a motor vehicle (7) comprises at least one sensor (11; 111; 211) and processing means (15) operatively associated with said sensor; the system further comprises at least one magnetic field generator (10; 110; 210) applied to the tyre (1); said sensor (11; 111; 211) is capable of detecting magnetic induction and is associated with said generator (10; 110; 210) to supply a signal indicating the electrical potential difference which is generated within said sensor in the presence of the magnetic field; this signal represents the variation with time of the shear deformation of the crown portion of the tyre (1).

Abstract translation: 用于确定在机动车辆（7）行驶期间轮胎（1）的胎冠部分的剪切变形状态的系统包括至少一个传感器（11; 111; 211）和处理装置（15），操作上与 传感器 所述系统还包括施加到轮胎（1）的至少一个磁场发生器（10; 110; 210）; 所述传感器（11; 111; 211）能够检测磁感应并与所述发生器（10; 110; 210）相关联，以在存在磁场的情况下提供指示在所述传感器内产生的电势差的信号 ; 该信号表示轮胎（1）的冠部的剪切变形随时间的变化。

公开(公告)号：US20030115972A1

公开(公告)日：2003-06-26

申请号：US10239545

申请日：2002-12-19

Inventor： Lutz Axel May

IPC: G01L001/12 ,  G01L003/10

CPC classification number: G01M5/0091 ,  G01L1/125 ,  G01L3/102 ,  G01M5/0016 ,  G01M5/0041

Abstract: A force transducer element (20) comprises a body (22) of magnetisable material having at least one magnetised region (30) at an angle, say 45null, to the force-sensing direction (P-P). Preferably there are a plurality of parallel magnetised regions of alternating opposite polarity of magnetisation to form closed loops (43p, 43n). The element may be a block having opposite force receiving surfaces (24, 24null). The body (122) may contain plural transducer elements (120a, 120b) angled to one another to resolve force directions. The principle is extended to a circular transducer element (243). The invention may be implemented in a flexible magnetic tape. Another embodiment (300) is realised in a planar structure in which a ferromagnetic core (310) is subject to a magnetic field (326) at an angle to the direction (F) of force application generated by laterally offset coils (312, 314). A sensor device (330) is fabricated in the structure.

Abstract translation: 力传感器元件（20）包括具有与力感测方向（P-P）成45°角的至少一个磁化区域（30）的可磁化材料体（22）。 优选地，存在多个平行磁化区域，其具有相反极性的磁化，以形成闭环（43p，43n）。 元件可以是具有相反的力接收表面（24,24'）的块。 主体（122）可以包含彼此成角度以分解力方向的多个换能器元件（120a，120b）。 该原理扩展到圆形换能器元件（243）。 本发明可以用柔性磁带来实现。 另一实施例（300）在其中铁磁芯（310）受到横向偏移线圈（312,314）产生的施力方向（F）成角度的磁场（326）的平面结构中实现， 。 在该结构中制造传感器装置（330）。

公开(公告)号：US20040211268A1

公开(公告)日：2004-10-28

申请号：US10423317

申请日：2003-04-25

Inventor： Donald T. Morelli ,  Thaddeus Schroeder

IPC: G01L001/12 ,  G01L001/25

CPC classification number: G01L1/127 ,  G01L1/125

Abstract: A magnetic force sensor and method for measuring a force applied to an object. A magnetostrictive element mounted on at least a portion of the object is subjected to a prestress. A conductive coil is wound around at least a portion of the magnetostrictive element. An excitation source, which includes one of a current source and a voltage source, excites the conductive coil. A detection circuit detects one of an induced voltage across the conductive coil and a voltage drop across a resistor in series with the conductive coil. The detected voltage can be used to determine the applied force. A second coil can be used in a bipolar sensor or to correct for variations in ambient conditions.

Abstract translation: 一种用于测量施加到物体的力的磁力传感器和方法。 安装在物体的至少一部分上的磁致伸缩元件经受预应力。 导电线圈缠绕在磁致伸缩元件的至少一部分上。 包括电流源和电压源之一的激励源激励导电线圈。 检测电路检测导电线圈两端的感应电压和与导电线圈串联的电阻器两端的电压降之一。 检测到的电压可用于确定施加的力。 第二个线圈可用于双极传感器或校正环境条件的变化。

公开(公告)号：US20040016304A1

公开(公告)日：2004-01-29

申请号：US10202727

申请日：2002-07-25

Inventor： Murray Kaijala ,  Dale Teeters

IPC: G01L001/12

CPC classification number: B60R22/18 ,  B60R21/0155

Abstract: A hall effect seat belt tension sensor for a vehicle. The sensor has a housing mounted to a seat belt. An anchor plate is mounted between the seat belt and a fixed point on a vehicle. The anchor plate is partially mounted in housing. A spring is mounted between the housing and the anchor plate. Tension on the seat belt causes the anchor plate to move relative to the housing. A magnetic field generator is mounted to the anchor plate. The magnetic field generator moves as the anchor plate moves. A magnetic field sensor is mounted to the housing. The sensor generates an electrical signal in response to movement of the magnetic field generator.

公开(公告)号：US20030150282A1

公开(公告)日：2003-08-14

申请号：US10257337

申请日：2003-02-12

Inventor： Lutz Axel May

IPC: G01L003/10 ,  G01L001/12 ,  H01F007/127

CPC classification number: G01L3/102 ,  G01L3/103 ,  H01F13/003 ,  Y10T29/49075

Abstract: A magnetic transducer element is formed in a portion (22) of a shaft (20) by an axially-oriented magnetic source (30) comprising a U-shape permanent magnet or electromagnet assembly, the gap (g) between the poles of which is small compared to the pole width (w). The source (30) is brought up to the continually rotating shaft (20) from a distance (D1) to a position closely proximate (D2) the shaft (20) and then retracting the source (30). With an electromagnet the mechanical movement may be emulated by controlling the energising of the electromagnet. An annular, surface-adjacent zone of axially-directed magnetisation is created whose external detectable field (40) has a distribution in the axial direction which shifts axially under applied torque. An axial or radial component may be sensed as a measure of torque. A method of preparing the shaft for magnetisation (magnetic-cleansing) and a post-magnetisation procedure is disclosed.

Abstract translation: 磁性换能器元件通过包括U型永磁体或电磁体组件的轴向定向磁源（30）形成在轴（20）的一部分（22）中，其极点之间的间隙（g） 与极宽（w）相比较小。 源（30）从连续旋转的轴（20）从距离（D1）延伸到紧邻（D2）轴（20）的位置，然后缩回源（30）。 使用电磁铁可以通过控制电磁体的激励来模拟机械运动。 产生轴向定向磁化的环形表面相邻区域，其外部可检测场（40）在轴向方向上具有在施加的转矩下轴向移动的分布。 可以将轴向或径向分量感测为扭矩的量度。 公开了一种制备用于磁化（磁性清洁）的轴和后磁化过程的方法。

公开(公告)号：US20030070484A1

公开(公告)日：2003-04-17

申请号：US10234142

申请日：2002-09-05

Inventor： Toshikazu Itakura

IPC: G01L001/12

CPC classification number: G01P15/18 ,  G01D5/2417 ,  G01P15/125 ,  G01P2015/0814

Abstract: A control signal generator transmits a first signal to a movable electrode and a fixed electrode to detect a change in a capacitance formed between the movable electrode and the fixed electrode during a normal physical quantity detection timing interval. Also, the control signal generator transmits a second signal to the movable electrode and the fixed electrode instead of the first signal to move the movable electrode for diagnosing a malfunction of each of a plurality of physical quantity detection portions during a self diagnosis timing interval. The control signal generator transmits the second signal to the movable electrode and the fixed electrode of each physical quantity detection portion during a different timing intervals.

Abstract translation: 控制信号发生器将第一信号发送到可动电极和固定电极，以在正常物理量检测定时间隔期间检测形成在可动电极和固定电极之间的电容的变化。 此外，控制信号发生器将第二信号发送到可动电极和固定电极而不是第一信号，以在自诊断定时间隔期间移动用于诊断多个物理量检测部分中的每一个的故障的可移动电极。 控制信号发生器在不同的定时间隔内将第二信号发送到每个物理量检测部分的可动电极和固定电极。