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    • 88. 发明授权
    • Position detector
    • 位置检测器
    • US09157767B2
    • 2015-10-13
    • US13648344
    • 2012-10-10
    • DENSO CORPORATION
    • Reiji Iwamoto
    • G01B7/14G01B7/30G01R33/06G01D5/14G01D5/20
    • G01D5/145G01D5/147G01D5/2033
    • In a position detector utilizing a Hall effect, a magnet is disposed to move relative to a circuit board. A conductive element is printed on the circuit board. A control circuit is mounted on the circuit board and is connected to the conductive element through a position detection wiring. The control circuit supplies an electric current to the conductive element through the position detection wiring such that the electric current flows in the conductive element in a first direction, detects a potential difference in a second direction perpendicular to the first direction in the conductive element, and performs an operation according to a position of the magnet relative to the conductive element based on the potential difference detected.
    • 在利用霍尔效应的位置检测器中,设置磁体相对于电路板移动。 导电元件印刷在电路板上。 控制电路安装在电路板上,并通过位置检测布线连接到导电元件。 控制电路通过位置检测布线向导电元件提供电流,使得电流沿导电元件沿第一方向流动,检测与导电元件中的第一方向垂直的第二方向上的电位差,以及 基于检测到的电位差,根据磁体相对于导电元件的位置执行操作。
    • 89. 发明申请
    • MAGNETIC MEDIUM FOR MAGNETIC ENCODER, MAGNETIC ENCODER AND METHOD FOR MANUFACTURING MAGNETIC MEDIUM
    • 磁性编码器用磁性介质,磁性编码器及制造磁性介质的方法
    • US20150115939A1
    • 2015-04-30
    • US14523182
    • 2014-10-24
    • HITACHI METALS, LTD.
    • Yasunori ABEMakoto KAWAKAMI
    • G01D5/16H01F41/00H01F13/00
    • G01D5/16G01D5/2033H01F13/00H01F41/00Y10T29/4902
    • The present disclosure provides a magnetic medium, a magnetic encoder, and a method for manufacturing a magnetic medium with high reliability that can obtain the sufficient signal output, while reducing the hysteresis error.Disclosed is a magnetic medium relatively movable with respect to a magnetic sensor for detecting a magnetic field in a magnetosensitive face, the magnetic medium including: a signal magnetization region including a first magnetization region magnetized in a first direction being in parallel with the magnetosensitive face and a second magnetization region magnetized in a second direction opposed to the first direction, the first magnetization region and the second magnetization region being alternately arranged along the first direction or the second direction; and a bias magnetization region magnetized in a third direction, the third direction intersecting both the first and second directions, and being in parallel with the magnetosensitive face, wherein while a surface of the magnetic medium opposed to the magnetic sensor is placed to face upward, the bias magnetization region is formed under the first magnetization region and the second magnetization region near an interface between the first magnetization region and the second magnetization region, and no bias magnetization regions are formed under the first magnetization region near a center of the first magnetization region and under the second magnetization region near a center of the second magnetization region.
    • 本公开提供一种磁性介质,磁性编码器和用于制造具有高可靠性的磁性介质的方法,其可以在减小滞后误差的同时获得足够的信号输出。 公开了一种相对于用于检测磁感应面中的磁场的磁传感器可相对移动的磁介质,所述磁介质包括:信号磁化区,包括在与磁感应面平行的第一方向上磁化的第一磁化区; 沿与第一方向相反的第二方向磁化的第二磁化区域,第一磁化区域和第二磁化区域沿着第一方向或第二方向交替布置; 以及在第三方向上磁化的偏磁化区域,所述第三方向与所述第一方向和所述第二方向交叉,并且与所述感磁面平行,其中当与所述磁传感器相对的磁介质的表面朝向上方放置时, 偏置磁化区域形成在第一磁化区域和第二磁化区域附近的第一磁化区域和第二磁化区域之间的界面附近,并且在第一磁化区域附近,在第一磁化区域的中心附近形成偏置磁化区域 并且在第二磁化区附近的第二磁化区附近。