公开(公告)号：US20150204737A1

公开(公告)日：2015-07-23

申请号：US14586017

申请日：2014-12-30

Applicant: Methode Electronics, Inc.

Inventor： Timothy J. Moran ,  Frank Ursetta

IPC: G01L1/12

CPC classification number: G01L1/122 ,  G01L1/125 ,  Y10T29/49826

Abstract: A magnetoelastic sensor. The magnetoelastic sensor uses strain-induced magnetic anisotropy to measure the tension or compression present in a plate. During construction, an annular region of the plate is magnetized with a circumferential magnetization. Magnetic field sensors are placed near this magnetized band at locations where the magnetization direction is non-parallel and non-perpendicular to the axis of tension. The strain-induced magnetic anisotropy caused by tension or compression then produces a shift in the magnetization direction in the plate regions near the field sensors, thereby causing magnetic field changes which are detected by the magnetic field sensors. The magnetic field sensors are connected to an electronic circuit which outputs a voltage signal which indicates the tension or compression in the plate.

Abstract translation: 磁弹性传感器。 磁弹性传感器使用应变诱导的磁各向异性来测量板中存在的张力或压缩。 在施工期间，板的环形区域被圆周磁化磁化。 在磁化方向不平行且不垂直于张力轴的位置处，磁场传感器放置在该磁化带附近。 由张力或压缩引起的应变引起的磁各向异性随后在场传感器附近的板区产生磁化方向的偏移，从而引起由磁场传感器检测的磁场变化。 磁场传感器连接到电子电路，其输出指示板中的张力或压缩的电压信号。

公开(公告)号：US20150204736A1

公开(公告)日：2015-07-23

申请号：US14413713

申请日：2013-07-09

Applicant: NTN CORPORATION

Inventor： Yui Masuda

IPC: G01L1/12 ,  F16D66/00 ,  F16D55/225

CPC classification number: G01L1/12 ,  F16D55/225 ,  F16D65/18 ,  F16D66/00 ,  F16D2066/005 ,  F16D2121/24 ,  F16D2125/50 ,  G01L1/122 ,  G01L5/0038 ,  G01L5/22

Abstract: A load sensor unit is provided which is less likely to suffer from hysteresis errors. The magnetic load sensor unit includes a flange member, a support member supporting the flange member from the axially rearward side, a magnetic target fixed to the flange member, a magnetic sensor fixed to the support member. The magnitude of the load is detected based on the magnetic flux detected by the magnetic sensor. A load acting surface of the flange member to which the load is applied is formed at a position offset axially rearwardly relative to an axially forward surface of the flange member.

Abstract translation: 提供了不太可能遭受滞后误差的负载传感器单元。 磁性载荷传感器单元包括凸缘构件，从轴向后侧支撑凸缘构件的支撑构件，固定到凸缘构件的磁性目标，固定到支撑构件的磁性传感器。 基于由磁传感器检测的磁通量来检测负载的大小。 施加负载的凸缘构件的载荷作用表面形成在相对于凸缘构件的轴向前表面轴向向后偏移的位置处。

公开(公告)号：US20140224038A1

公开(公告)日：2014-08-14

申请号：US14235818

申请日：2012-07-27

Applicant: Yui Masuda ,  Makoto Yasui ,  Toru Takahashi

Inventor： Yui Masuda ,  Makoto Yasui ,  Toru Takahashi

IPC: G01L1/12

CPC classification number: G01L1/12 ,  F16D2066/005 ,  G01L1/122

Abstract: A magnetic load sensor unit is provided which can detect a load with a minute movement of its part, and which is durable and less likely to be influenced by temperature. The sensor unit includes a flange member (1) deflectable when an axial load is applied, a support member (2) supporting the flange member (1), a magnetic target (3) which generates a magnetic field, and a magnetic sensor (4) for detecting the magnetic field generated by the magnetic target (3). The magnetic target (3) and the magnetic sensor (4) are fixed to the flange member (1) and the support member (2), respectively, such that when the flange member (1) is deflected, the magnetic target (3) and the magnetic sensor (4) move relative to each other, whereby magnitude of the load can be detected based on the magnetic field detected by the magnetic sensor (4).

Abstract translation: 提供一种磁性负载传感器单元，其可以通过其部件的微小移动来检测负载，并且其耐久性并且不太可能受温度的影响。 传感器单元包括当施加轴向载荷时可偏转的凸缘构件（1），支撑凸缘构件（1）的支撑构件（2），产生磁场的磁性靶（3）和磁性传感器（4） ），用于检测由磁性靶（3）产生的磁场。 磁性靶（3）和磁性传感器（4）分别固定在凸缘部件（1）和支撑部件（2）上，使得当凸缘部件（1）偏转时，磁性靶（3） 并且磁传感器（4）相对于彼此移动，由此可以基于由磁传感器（4）检测的磁场来检测负载的大小。

公开(公告)号：US20130221950A1

公开(公告)日：2013-08-29

申请号：US13775903

申请日：2013-02-25

Applicant: Polycontact AG

Inventor： Josua LANTER

IPC: G01L1/12

CPC classification number: G01L1/12 ,  G01L1/122 ,  G01L1/125 ,  G01L3/102

Abstract: A method and measurement arrangement are disclosed for measuring mechanical stress in ferromagnetic workpieces, in which a ferromagnetic workpiece impresses a magnetic field and a magnetic field value is measured and analyzed with respect to the mechanical stress. The method includes at least two exciters of the magnetic field arranged along a longitudinal extension of the workpiece such that a section of the workpiece is located between the two exciters of the magnetic field. A direction-dependent magnetic field sensor is arranged at a position along the longitudinal extension of the workpiece, which can be at half the distance between the two exciters of the magnetic field. With the direction-dependent magnetic field sensor, the change in position and/or the direction of a dividing line between the north and south poles of the impressed magnetic field is determined and analyzed.

Abstract translation: 公开了一种用于测量铁磁工件中的机械应力的方法和测量装置，其中铁磁性工件施加磁场并且相对于机械应力测量和分析磁场值。 该方法包括沿着工件的纵向延伸布置的磁场的至少两个激励器，使得工件的一部分位于磁场的两个激励器之间。 方向依赖的磁场传感器布置在沿着工件的纵向延伸的位置，该位置可以是两个磁场激发器之间的距离的一半。 利用方向依赖的磁场传感器，确定和分析了外加磁场的北极和南极之间的分界线的位置和/或方向的变化。

公开(公告)号：US07971477B2

公开(公告)日：2011-07-05

申请号：US12674306

申请日：2008-08-05

Applicant: Yasuhiro Kubota

Inventor： Yasuhiro Kubota

IPC: B60C23/02

CPC classification number: B60C19/00 ,  B60C13/00 ,  B60C2019/004 ,  B60T8/1725 ,  G01L1/122 ,  G01L5/16 ,  G01M17/02

Abstract: A detection method for at least one of acting forces on tire among a back-and-forth directional force, a lateral force, vertical force, and a moment about a tire axis, detects the forces by strain outputs of strain sensors, which are attached on the tire and measure the strains of a sidewall portion. The method includes a strain measuring step to measure the strain of the sidewall portion with each of the above-mentioned strain sensors simultaneously at the rotational position P based on the tire rotational standard position X and to obtain the strain output per each strain sensor, and an acting force calculating step to calculate the above-mentioned force acting on the tire based on the strain output per strain sensor obtained on this strain measuring step.

Abstract translation: 用于轮胎中的至少一个作用力的检测方法来自前后方向力，横向力，垂直力和轮胎轴线周围的力矩，通过应变传感器的应变输出来检测力 并且测量侧壁部分的应变。 该方法包括应变测量步骤，用于基于轮胎旋转标准位置X，在旋转位置P处同时测量上述各应变传感器的侧壁部分的应变，并获得每个应变传感器的应变输出， 基于在该应变测量步骤中获得的每个应变传感器的应变输出来计算上述作用在轮胎上的力的作用力计算步骤。

公开(公告)号：US20080078254A1

公开(公告)日：2008-04-03

申请号：US11858154

申请日：2007-09-20

Applicant: Sven Sautter ,  Andreas Hampe

Inventor： Sven Sautter ,  Andreas Hampe

IPC: G01L1/12

CPC classification number: G01G19/4142 ,  G01L1/122

Abstract: The invention relates to a load gauge comprising a generator-sensor assembly. Said assembly comprises a generator unit that generates a magnetic field and a sensor unit that is sensitive to magnetic fields, said generator unit and sensor unit being displaceable by a force in relation to one another. According to the invention, the generator unit comprises at least one permanent magnet and a second permanent magnet, each with a geometric cross-section that remains essentially constant in a longitudinal direction. The first permanent magnet and the second permanent magnet are situated at an angle to one another.

Abstract translation: 本发明涉及一种包括发电机 - 传感器组件的负载表。 所述组件包括产生磁场的发电机单元和对磁场敏感的传感器单元，所述发电机单元和传感器单元可通过相对于彼此的力而移位。 根据本发明，发电机单元包括至少一个永久磁铁和第二永久磁铁，每个永磁体具有在纵向方向基本保持恒定的几何横截面。 第一永磁体和第二永磁体彼此成一定角度。

公开(公告)号：US11971315B2

公开(公告)日：2024-04-30

申请号：US17427775

申请日：2019-07-23

Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： June Seo Kim ,  Myoung Jae Lee ,  Hyeon Jun Lee

IPC: G01L1/12 ,  H01F10/14 ,  H01F10/32

CPC classification number: G01L1/122 ,  H01F10/14 ,  H01F10/325 ,  H01F10/3254

Abstract: Disclosed is a force sensor. More particularly, the force sensor includes a first permanent magnet layer; a magnetic tunnel junction disposed on the first permanent magnet layer and configured to have a preset resistance value; and a second permanent magnet layer disposed to be spaced apart from the magnetic tunnel junction, wherein the second permanent magnet layer moves in a direction of the first permanent magnet layer when pressure is applied from outside, the preset resistance value of the magnetic tunnel junction is changed when a magnetic field strength formed between the first permanent magnet layer and the second permanent magnet layer becomes a preset strength or more according to movement of the second permanent magnet layer, and the force sensor senses the pressure based on a change in the preset resistance value.

公开(公告)号：US11933679B2

公开(公告)日：2024-03-19

申请号：US17956916

申请日：2022-09-30

Applicant: STRESS ENGINEERING SERVICES, INC.

Inventor： Daniel L. Morrow

IPC: G01L1/12 ,  F41B5/14 ,  G01D5/14 ,  G01L1/00 ,  G01L5/04 ,  G01R33/00 ,  G01R33/07 ,  F41B5/10

CPC classification number: G01L1/12 ,  F41B5/1403 ,  G01D5/145 ,  G01D5/147 ,  G01L1/005 ,  G01L1/122 ,  G01R33/0047 ,  G01R33/072 ,  F41B5/105 ,  G01L5/04

Abstract: A transducer assembly includes a mounting base, a collar, a magnet, and a Hall effect sensor. The collar defines a bore. One of the magnet and the Hall effect sensor is disposed within the bore and attached to the mounting base. The other of the magnet and the Hall effect sensor is attached to the collar. The Hall effect sensor is spaced from the magnet and is configured to detect movement of at least a portion of the collar relative to the mounting base.

公开(公告)号：US20230341277A1

公开(公告)日：2023-10-26

申请号：US17956916

申请日：2022-09-30

Applicant: STRESS ENGINEERING SERVICES, INC.

Inventor： DANIEL L. MORROW

IPC: G01L1/12

CPC classification number: G01L1/12 ,  G01L1/122 ,  G01L5/04

Abstract: A transducer assembly includes a mounting base, a collar, a magnet, and a Hall effect sensor. The collar defines a bore. One of the magnet and the Hall effect sensor is disposed within the bore and attached to the mounting base. The other of the magnet and the Hall effect sensor is attached to the collar. The Hall effect sensor is spaced from the magnet and is configured to detect movement of at least a portion of the collar relative to the mounting base.

公开(公告)号：US20230333656A1

公开(公告)日：2023-10-19

申请号：US17752904

申请日：2022-05-25

Applicant: TOPRAY MEMS INC.

Inventor： Chin-Sung Liu ,  Shin-Ter Tsai ,  Hsiao-Ming Chien

IPC: G06F3/01 ,  G01L1/12

CPC classification number: G06F3/016 ,  G01L1/122

Abstract: A force sensing module with vibration feedback is disclosed, comprising: a substrate, a frame and a plurality of magnetic sensors; the substrate is disposed with at least one tactile actuator, and the substrate has a touch operation surface and a mounting surface on opposite sides, the tactile actuator is mounted on the mounting surface; the frame is disposed with at least three buffer spacers, the buffer spacers connect the frame to the substrate; the magnetic sensor includes a magnet and a Hall element, one of the magnet and the Hall element is disposed on the frame, and the other is disposed on the substrate; thereby when a force is applied on the touch operation surface to make the substrate offset, the Hall element output a force signal due to the voltage change caused by approaching magnet, and the signal drives the tactile actuator to generate a vibration feedback.