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    • 2. 发明专利
    • Stress sensor
    • 应力传感器
    • JP2012127977A
    • 2012-07-05
    • JP2012079348
    • 2012-03-30
    • Nissan Motor Co Ltd日産自動車株式会社
    • SHIMADA MUNEKATSUTSUSHIMA KENJIURAMOTO KIYOHIROMATSUOKA TOSHIMITSUFUKUSHIMA AKIRA
    • G01L1/12
    • PROBLEM TO BE SOLVED: To provide a magnetostrictive stress sensor which is excellent in an installing property to a detection target and detection sensitivity, compact and easy to be handled, and inexpensive and excellent in robustness, by putting a stress sensor using an opposite effect of magnetostriction to practical use.SOLUTION: A shaft-shaped magnetic body 1 having magnetostriction and equipped with a hollow portion 1a at a shaft core portion is magnetized in a circumferential direction to make a stress detecting portion 2. The stress detecting portion 2 is provided with a detection head 10 having a platy permanent magnet 11, magnetic sensors 12 and 13, and a platy yoke 14. Those sensors, magnet, and yoke are arranged at predetermined positions. The changes of a magnetic flux flowing outside the magnetic body when stress acts on the magnetic body 1, out of a magnetic flux generated from the permanent magnet 11 and distributed into a magnetic flux passing through the inside of the magnetic body 1 and flowing outside the magnetic body 1, is detected to detect axial stress acting on the magnetic body 1.
    • 要解决的问题:提供一种磁致伸缩应力传感器,其通过将应力传感器使用的是具有优异的检测目标的安装性和检测灵敏度,紧凑且易于处理,廉价且优异的鲁棒性的磁致伸缩应力传感器 磁致伸缩对实际应用的相反作用。 解决方案:具有磁致伸缩并且在轴芯部分具有中空部分1a的轴形磁体1在圆周方向上被磁化以形成应力检测部分2.应力检测部分2设置有检测 头10具有板状永磁体11,磁传感器12和13以及板状磁轭14.这些传感器,磁体和磁轭布置在预定位置。 当从永久磁铁11产生的磁通中产生应力作用在磁体1上时,流过磁体的磁通量的变化,并分布在通过磁体1的内部并流过磁体1的磁通中 检测磁体1,以检测作用在磁体1上的轴向应力。版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Magnetostrictive stress sensor
    • 磁感应应变传感器
    • JP2010078480A
    • 2010-04-08
    • JP2008247742
    • 2008-09-26
    • Nissan Motor Co Ltd日産自動車株式会社
    • SHIMADA MUNEKATSUMATSUOKA TOSHIMITSUFUJITA MITSUAKIAIHARA MASAOURAMOTO KIYOHIROMIYAMOTO TAKASHI
    • G01L1/12
    • PROBLEM TO BE SOLVED: To provide a magnetostrictive stress sensor capable of accurately and precisely detecting stresses. SOLUTION: The magnetostrictive stress sensor 11 includes a striction generating part 22 formed from a material having magnetostriction, a connection member 25 for connecting the striction generating part to a target member 50 to which a stress is applied, a permanent magnet 30 arranged in proximity to the striction generating part, and a magnetic sensor 40 for detecting a leak magnetic flux in the opposite side of the permanent magnet against the striction generating part. The magnetostrictive stress sensor detects the stress acting on the striction generating part by detecting by the magnetic sensor the change in the leak magnetic flux which changes depending on the stress applied to the striction generating part from the target member through the connection member. The connection member includes a pair of leg parts 23 and an attachment plate 24 disposed on the tip of each of the leg parts. The attachment plate has a larger area than the cross-section area of the leg part and is fixed against the target member by crimping a projection part 51 disposed on the target member. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供能够准确和精确地检测应力的磁致伸缩应力传感器。 解决方案:磁致伸缩应力传感器11包括由具有磁致伸缩材料形成的粘结产生部分22,用于将紧固产生部分连接到施加有应力的目标部件50的连接部件25布置在其上的永磁体30 靠近制动产生部分的磁传感器40以及用于检测永久磁铁相对于限制产生部分的相对侧的漏磁通的磁传感器40。 磁致伸缩应力传感器通过由磁传感器检测根据从目标构件通过连接构件施加到限制产生部件的应力而变化的泄漏磁通量的变化,来检测作用在密封产生部件上的应力。 连接构件包括一对腿部23和设置在每个腿部的尖端上的附接板24。 安装板具有比腿部的横截面积大的面积,并且通过压接设置在目标构件上的突出部51而固定在目标构件上。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Magnetostrictive stress sensor
    • 磁感应应变传感器
    • JP2008268175A
    • 2008-11-06
    • JP2007301346
    • 2007-11-21
    • Nissan Motor Co Ltd日産自動車株式会社
    • SHIMADA MUNEKATSUSAKURAI HIROSHIKAWASHITA NOBUOURAMOTO KIYOHIROMATSUOKA TOSHIMITSUAIHARA MASAOFUJITA MITSUAKIOSHIMA MASAHARU
    • G01L1/12
    • PROBLEM TO BE SOLVED: To provide a magnetostrictive stress sensor capable of accurately and precisely detecting stresses.
      SOLUTION: This magnetostrictive stress sensor 11 comprises a magnetic member 20, having magnetostriction, a permanent magnet 30 in proximity to the magnetic member, and a magnetic sensor 40 for detecting a leaked magnetic flux on the opposite side of the permanent magnet, with respect to the magnetic member. The magnetostrictive stress sensor detects the stresses acting on the magnetic member, by detecting the variations in the leaked magnetic flux that varies, depending on the stresses that act on the magnetic member with use of the magnetic sensor. The direction (arrow 21) of the stress acting on the magnetic member and the magnetizing direction (arrow 31) of the permanent magnet are substantially orthogonal to each other.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供能够准确和精确地检测应力的磁致伸缩应力传感器。 解决方案:该磁致伸缩应力传感器11包括具有磁致伸缩性的磁性构件20,靠近磁性构件的永磁体30,以及用于检测永久磁铁相对侧的漏磁通的磁传感器40, 相对于磁性构件。 磁致伸缩应力传感器通过检测根据使用磁传感器对磁性部件作用的应力而变化的泄漏磁通量的变化来检测作用在磁性部件上的应力。 作用在磁性构件上的应力和永磁体的磁化方向(箭头31)的方向(箭头21)基本上彼此正交。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Magnetic sensor apparatus
    • 磁传感器装置
    • JP2008256415A
    • 2008-10-23
    • JP2007096809
    • 2007-04-02
    • Nissan Motor Co Ltd日産自動車株式会社
    • SHIMADA MUNEKATSUOSHIMA MASAHARUMASHIMA KEISUKEURAMOTO KIYOHIRO
    • G01R33/02G01L3/10G01R33/07
    • PROBLEM TO BE SOLVED: To provide a magnetic sensor apparatus capable of compensating a temperature characteristic in sensitivity in a simple configuration.
      SOLUTION: The magnetic sensor apparatus 101 has: a sensor section 110 in which a plurality of magnetic sensors 111, 112 for detecting magnetic fluxes are arranged; a differential output section 121 for outputting a value as a sensor output obtained by applying a differential operation to respective outputs of the magnetic sensors; a temperature detecting section 122 for detecting a temperature of the sensor section; and a voltage controlling section 123 for compensating the temperature characteristic in sensitivity by controlling a supply voltage Vcc supplied to all the magnetic sensors, based on the temperature of the sensor section detected by the temperature detecting section.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够以简单的结构补偿灵敏度的温度特性的磁传感器装置。 解决方案:磁传感器装置101具有:传感器部110,其中布置有用于检测磁通量的多个磁传感器111,112; 差分输出部分121,用于输出通过对磁传感器的各个输出施加差分运算而获得的传感器输出值; 用于检测传感器部分的温度的温度检测部分122; 以及电压控制部分123,用于通过根据由温度检测部分检测的传感器部分的温度来控制提供给所有磁性传感器的电源电压Vcc来补偿灵敏度中的温度特性。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Torque sensor and its manufacturing method
    • 扭矩传感器及其制造方法
    • JP2006046987A
    • 2006-02-16
    • JP2004225185
    • 2004-08-02
    • Nissan Motor Co Ltd日産自動車株式会社
    • TSUSHIMA KENJISHIMADA MUNEKATSU
    • G01L3/10H01L41/08H01L41/12
    • PROBLEM TO BE SOLVED: To provide a torque sensor for measuring large torque such as driving torque of car correctly and its manufacturing method excellent in torque detection precision with low hysteresis as well as realizing the manufacturing cost reduction.
      SOLUTION: The torque sensor for detecting the magnitude of torque transmitted by the rotary shaft 1 supported rotatively is provided with: the magnetic sensing means provided with a magnetostriction function arranged on the rotary shaft 1; the coils 5a, 5b arranged around the magnetic sensing means for exciting the magnetic sensing means and detecting the change of strain generated on the surface of the rotary shaft 1 by the torque transmitted by the rotary shaft 1 via the change in the permutation of the magnetic sensing means as the change of self inductance. The magnetic sensing means is provided with metallic glass 2 exposed to all around of the surface at least a part in the axial direction of the rotary shaft 1.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于测量诸如汽车的驱动扭矩的大扭矩的扭矩传感器及其具有低滞后性的扭矩检测精度优异的制造方法以及实现制造成本降低。 解决方案:用于检测由旋转轴1传递的扭矩的大小的扭矩传感器设置有:具有设置在旋转轴1上的磁致伸缩功能的磁感测装置; 线圈5a,5b布置在磁感测装置周围,用于激励磁感测装置,并且通过旋转轴1传递的扭矩通过磁性排列的变化来检测在旋转轴1的表面上产生的应变变化 感应装置作为自感的变化。 磁感测装置设置有在旋转轴1的轴向方向上的至少一部分暴露于表面的整个周围的金属玻璃2.版权所有(C)2006,JPO&NCIPI