公开(公告)号：US5165284A

公开(公告)日：1992-11-24

申请号：US678160

申请日：1991-04-01

申请人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

发明人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

IPC分类号： G01L9/16

CPC分类号： G01L9/16 ,  Y10S73/02

摘要： A pressure sensor has a recess formed in outer surfaces of a deforming part and a non-deforming part such that a pair of steps are formed at opposite ends of the recess. The deforming part is strained by a pressure whereas the non-deforming part is not strained by the pressure. An amorphous magnetic alloy film is received in and affixed relative to the recess, and extends between the pair of steps. The depth of the recess is larger than the thickness of the film. A pair of permeability detector elements are mounted respectively on the deforming part and the non-deforming part so as to detect a change in permeability of the film.

公开(公告)号：US5442966A

公开(公告)日：1995-08-22

申请号：US231944

申请日：1994-04-21

申请人： Hiroyuki Hase ,  Rihito Shoji ,  Masayuki Wakamiya

发明人： Hiroyuki Hase ,  Rihito Shoji ,  Masayuki Wakamiya

IPC分类号： G01L3/10 ,  G01L1/00

CPC分类号： G01L3/102 ,  G01L3/105

摘要： A torque sensor of the type utilizing magnetostriction of either a shaft made of a magnetostrictive magnetic alloy, or a magnetostrictive magnetic alloy layer formed on an outer peripheral surface of a shaft is disclosed, in which coils are disposed around the shaft for detecting a magnetic property of the magnetostrictive magnetic alloy, a tubular magnetic yoke made of a magnetic alloy having a soft magnetic property and disposed around the coils for excluding the influence of a disturbance magnetic field and completing a closed magnetic circuit, and a hollow cylindrical container disposed around the magnetic yoke. The torque sensor thus constructed has a high measuring accuracy and an excellent thermal stability.

摘要翻译： 公开了一种利用由磁致伸缩磁性合金制成的轴的磁致伸缩的形式的转矩传感器或形成在轴的外周表面上的磁致伸缩磁性合金层，其中绕轴设置用于检测磁性能 的磁致伸缩磁性合金，由具有软磁特性的磁性合金制成的管状磁轭，设置在线圈周围以排除干扰磁场的影响并完成闭合磁路，以及围绕磁性的中空圆柱形容器 轭。 如此构造的扭矩传感器具有高测量精度和优异的热稳定性。

公开(公告)号：US5353649A

公开(公告)日：1994-10-11

申请号：US201153

申请日：1994-02-24

申请人： Hiroyuki Hase ,  Rihito Shoji ,  Masayuki Wakamiya

发明人： Hiroyuki Hase ,  Rihito Shoji ,  Masayuki Wakamiya

IPC分类号： G01L3/10 ,  G01L1/00

CPC分类号： G01L3/102 ,  G01L3/105

摘要： A non-contact detecting type torque sensor having an enlarged measurable torque range is disclosed, in which a tubular torque transmission member having a mounting portion formed on its inner peripheral surface is fixedly mounted on a shaft, a tubular joining member fitted over the torque transmission member is welded at its opposite ends, a surface magnetic layer having a magnetostrictive properties is formed on an outer peripheral surface of the joining member, and coils are disposed around the surface magnetic layer. With this construction, the magnetic permeability of the surface magnetic layer varies with a torque transmitted from the shaft. A change in magnetic permeability is detected in terms of a change in self-inductance of the coils. The welded ends of the joining member are disposed outside the mounting portion of the torque transmitting member in a longitudinal direction of the shaft, so that the measurable torque range of the torque sensor can be enlarged.

摘要翻译： 公开了一种具有可扩大的可测量转矩范围的非接触式检测型转矩传感器，其中具有形成在其内周面上的安装部分的管状转矩传递部件固定地安装在轴上，管状接合部件安装在转矩传递 构件在其相对端被焊接，在接合构件的外周表面上形成具有磁致伸缩特性的表面磁性层，并且线圈设置在表面磁性层周围。 利用这种结构，表面磁性层的磁导率随着从轴传递的扭矩而变化。 根据线圈自感的变化来检测磁导率的变化。 接合构件的焊接端部沿着轴的纵向方向设置在扭矩传递构件的安装部分的外侧，从而可以扩大扭矩传感器的可测量的扭矩范围。

公开(公告)号：US5303595A

公开(公告)日：1994-04-19

申请号：US789333

申请日：1991-11-08

申请人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

发明人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

IPC分类号： G01L9/16

CPC分类号： G01L9/16 ,  Y10S73/02

摘要： A pressure sensor in which a magnetostriction effect of an amorphous magnetic alloy is utilized. It is an object of the invention to suppress the thermal sensitivity change of the pressure sensor and to improve the lineality and the hysteresis of sensor output. The pressure sensor comprises a cylindrical columnar hollow body with a pressure introducing opening, a deforming part of which body is distorted by a pressure introduced from the pressure introducing opening, the deforming part being a peripheral wall of the body, and a thin film made of an amorphous magnetic alloy having a magnetostriction property which is fitted around and bonded to the deforming part, wherein the film, which is curved to have a cylindrical shape and annealed before it is provided around the cylindrical columnar deforming part, has a curvature different from a curvature of the cylindrical columnar deforming part.

摘要翻译： 利用非晶磁性合金的磁致伸缩效应的压力传感器。 本发明的目的是抑制压力传感器的热敏感性变化并改善传感器输出的线性和滞后。 压力传感器包括具有压力引入开口的圆柱形柱状空心体，其变形部分通过从压力引入开口引入的压力变形，变形部分是本体的周壁，以及薄膜由 具有磁致伸缩特性的非晶磁性合金，其被安装在变形部分周围并结合到变形部分，其中弯曲成具有圆柱形并在其周围设置在圆柱形柱状变形部分之前进行退火的膜具有不同于 圆柱形变形部分的曲率。

公开(公告)号：USRE34510E

公开(公告)日：1994-01-18

申请号：US908169

申请日：1992-07-02

申请人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

发明人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

IPC分类号： G01L9/16 ,  G01L9/10

CPC分类号： G01L9/16

摘要： A pressure sensor having the structure wherein an amorphous magnetic alloy member or members are secured to both of a deforming part which is distorted by a pressure and a non-deforming part which is not distorted by a pressure and elements for detecting the change of a permeability of the amorphous magnetic alloy are respectively disposed at each of the amorphous magnetic alloy members, can measure the magnitude of an applied pressure with high accuracy while suppressing a drift of the output accompanied with the change of a temperature.

摘要翻译： 一种具有以下结构的压力传感器，其中非晶磁性合金构件被固定到由压力变形的变形部分和不被压力变形的非变形部分以及用于检测渗透率变化的元件 的无定形磁性合金构件分别配置在各非晶磁性合金构件中，可以在抑制伴随着温度变化的输出的漂移的同时高精度地测量施加压力的大小。

公开(公告)号：US5323659A

公开(公告)日：1994-06-28

申请号：US126027

申请日：1993-09-24

申请人： Masayuki Wakamiya ,  Hiroyuki Hase ,  Rihito Shoji

发明人： Masayuki Wakamiya ,  Hiroyuki Hase ,  Rihito Shoji

IPC分类号： G01L3/10 ,  G01L3/00

CPC分类号： G01L3/102 ,  G01L3/105

摘要： A multifunctional torque sensor comprises a torque transmission shaft, a rectangle-shaped or parallelogram-shaped magnetic material strip bonded on the surface of the torque transmission shaft so that opposite sides of the rectangle or parallelogram face each other with a gap interposed therebetween, a first coil concentrically wound around the magnetic material strip, amagnetic core disposed outside of the magnetic material strip in no contact therewith through a space, and a second coil wound around the magnetic material strip. A change in magnetic characteristic caused by a stress transmitted from the torque transmission shaft to the magnetic material strip is detected by the first coil, thereby detecting a torque. The rotation of the shaft is detected through the detection of the gap by the second coil upon rotation of the shaft. A power can be operationally determined from the detected torque and rotation.

摘要翻译： 一种多功能扭矩传感器包括转矩传递轴，矩形或平行四边形形状的磁性材料条，其结合在转矩传递轴的表面上，使得矩形或平行四边形的相对侧面彼此间隔开间隙，第一 线圈同心地卷绕在磁性材料条上，磁性芯置于磁性材料带的外侧，通过一个空间不与其接触，而第二个线圈缠绕在磁性材料条上。 由转矩传递轴向磁性材料带传递的应力引起的磁特性变化由第一线圈检测，从而检测转矩。 通过在轴旋转时通过第二线圈检测间隙来检测轴的旋转。 可以根据检测到的扭矩和旋转来确定功率。

公开(公告)号：US5349868A

公开(公告)日：1994-09-27

申请号：US51302

申请日：1993-04-23

申请人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

发明人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

IPC分类号： G01L9/16 ,  G01L9/10

CPC分类号： G01L9/16

摘要： In a bridge circuit of a pressure sensor, resistances are connected in series to the impedances of a pressure detection coil and of a dummy coil for differential provided for deforming and non-deforming parts, and the values of the resistances are smaller than the impedances of the coils. The inductance and the internal resistance of the coils are measured under zero pressure and under the highest rating pressure. The resistance connected to the pressure detector coil is determined so that the sensor output sensitivity, represented as a difference of the sensor outputs under zero pressure and under the highest rating pressure, at the highest temperature agrees with that at the lowest temperature. The resistance connected to the dummy coil is determined so that the sensor output, represented as a difference of the sensor outputs under zero pressure, at the highest temperature agrees with that at the lowest temperature.

摘要翻译： 在压力传感器的桥式电路中，电阻串联连接到压力检测线圈和用于变形和不变形部件的差动用虚线圈的阻抗，并且电阻值小于 线圈。 在零压力和最高额定压力下测量线圈的电感和内阻。 确定连接到压力检测器线圈的电阻，使得传感器输出灵敏度表示为在最高温度下在零压力下和最高额定压力下的传感器输出的差异与最低温度下的传感器输出灵敏度一致。 确定连接到虚拟线圈的电阻，使得以最高温度下的零压力下的传感器输出的差异表示的传感器输出与最低温度下的传感器输出一致。

公开(公告)号：US4938069A

公开(公告)日：1990-07-03

申请号：US421154

申请日：1989-10-13

申请人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

发明人： Rihito Shoji ,  Hiroyuki Hase ,  Masayuki Wakamiya

IPC分类号： G01L9/16

CPC分类号： G01L9/16

摘要： A pressure sensor having the structure wherein an amorphous magnetic alloy member or members are secured to both of a deforming part which is distorted by a pressure and a non-deforming part which is not distorted by a pressure and elements for detecting the change of a permeability of the amorphous magnetic alloy are respectively disposed at each of the amorphous magnetic alloy members, can measure the magnitude of an applied pressure with high accuracy while suppressing a drift of the output accompanied with the change of a temperature.

摘要翻译： 一种具有以下结构的压力传感器，其中非晶磁性合金构件被固定到由压力变形的变形部分和不被压力变形的非变形部分以及用于检测渗透率变化的元件 的无定形磁性合金构件分别配置在各非晶磁性合金构件中，可以在抑制伴随着温度变化的输出的漂移的同时高精度地测量施加压力的大小。

公开(公告)号：US5675886A

公开(公告)日：1997-10-14

申请号：US707585

申请日：1996-09-05

申请人： Hiroyuki Hase ,  Rihito Shoji

发明人： Hiroyuki Hase ,  Rihito Shoji

IPC分类号： G01L3/10 ,  H01F1/153 ,  H01L41/12 ,  H01F41/02

CPC分类号： G01L3/102 ,  H01F1/15341 ,  H01L41/125 ,  Y10T29/4902

摘要： A torque sensor including a magnetostrictive alloy ribbon having plural rows of plural hole groups arranged longitudinally in the direction at a required angle to the shaft, and the magnetostrictive alloy ribbon is glued to the surface of the shaft, and means for detecting magnetic change are arranged around the magnetostrictive alloy ribbon in order to detect torque.

摘要翻译： 一种扭矩传感器，包括具有多个多个孔组的磁致伸缩合金带，该多个孔组沿与所述轴成所需角度的方向纵向排列，并且所述磁致伸缩合金带粘合到所述轴的表面，并且布置用于检测磁变化的装置 在磁致伸缩合金带周围，以检测扭矩。

公开(公告)号：US5557974A

公开(公告)日：1996-09-24

申请号：US294027

申请日：1994-08-24

申请人： Hiroyuki Hase ,  Rihito Shoji

发明人： Hiroyuki Hase ,  Rihito Shoji

IPC分类号： G01L3/10 ,  H01F1/153 ,  H01L41/12 ,  G01L3/00

CPC分类号： G01L3/102 ,  H01F1/15341 ,  H01L41/125 ,  Y10T29/4902

摘要： A torque sensor including a magnetostrictive alloy ribbon having plural rows of plural hole groups arranged longitudinally in the direction at a required angle to the shaft, and the magnetostrictive alloy ribbon is glued to the surface of the shaft, and means for detecting magnetic change are arranged around the magnetostrictive alloy ribbon in order to detect torque.

摘要翻译： 一种扭矩传感器，包括具有多个多个孔组的磁致伸缩合金带，该多个孔组沿与所述轴成所需角度的方向纵向排列，并且所述磁致伸缩合金带粘合到所述轴的表面，并且布置用于检测磁变化的装置 在磁致伸缩合金带周围，以检测扭矩。