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267 条记录 (耗时 0.017 秒)

    External magnetic field angle determination
    45.
    发明授权
    External magnetic field angle determination 有权

    公开(公告)号：US10209321B2

    公开(公告)日：2019-02-19

    申请号：US12598500

    申请日：2008-04-24

    申请人： Stefan Butzmann

    发明人： Stefan Butzmann

    IPC分类号： G01R33/09 ,  B82Y25/00 ,  G01C17/30 ,  G01D5/14

    摘要： Magnetoresistive sensors are commonly used for angular detection in many automotive applications. According to an exemplary embodiment of the present invention, a sensor is provided in which a first half-bridge has magnetoresistive resistors with barber-pole stripes and in which a second half-bridge has magnetoresistive resistors without barber-pole stripes. One of the resistors without barber-pole stripes is rotated with respect to the other three resistors by 90°. This may provide for an improved angle determination with reduced angular errors due to offset.

    Geomagnetic sensor
    48.
    发明授权
    Geomagnetic sensor 有权
    地磁传感器

    公开(公告)号：US09465134B2

    公开(公告)日：2016-10-11

    申请号：US14350433

    申请日：2012-07-11

    申请人： Toshikazu Suzuki

    发明人： Toshikazu Suzuki

    IPC分类号： G01R33/02 ,  G01V3/40 ,  G01R33/028 ,  G01R33/04 ,  G01C17/30

    CPC分类号： G01V3/40 ,  G01C17/30 ,  G01R33/028 ,  G01R33/04

    摘要： A geomagnetic sensor includes: a core that constitutes a closed magnetic circuit; a pair of coils that are wound around the core in positions facing each other and are connected in series to generate magnetic flux in the same circumferential direction in the core; an excitation power supply that applies an alternating current with a superimposed direct current to the pair of coils; and a detection circuit that is connected to a connection point of the pair of coils. Unlike a conventional flux gate type geomagnetic sensor, it is not required to excite the core until the core is magnetically saturated, and it is therefore possible to reduce power consumption.

    摘要翻译： 地磁传感器包括：构成封闭磁路的磁芯; 一对线圈，其在彼此面对的位置缠绕在所述芯上，并且串联连接以在所述芯中沿相同的圆周方向产生磁通; 励磁电源，其向所述一对线圈施加具有叠加的直流电流的交流电; 以及连接到所述一对线圈的连接点的检测电路。 与传统的磁通门式地磁传感器不同，在磁芯饱和之前不需要激励磁芯，因此可以降低功耗。

    Method and a device for determining a direction in a magnetic field
    49.
    发明授权
    Method and a device for determining a direction in a magnetic field 有权
    用于确定磁场中的方向的方法和装置

    公开(公告)号：US09068832B2

    公开(公告)日：2015-06-30

    申请号：US13832081

    申请日：2013-03-15

    申请人： SUUNTO OY

    发明人： Aimo Heikkinen ,  Mikko Martikka ,  Erik Lindman

    IPC分类号： G01C9/26 ,  G01C17/38 ,  G01C19/04 ,  G01C17/28 ,  G01C17/04 ,  G01C17/30 ,  G01C17/00

    CPC分类号： G01C17/28 ,  G01C17/00 ,  G01C17/04 ,  G01C17/30 ,  G01C17/38

    摘要： A method and an electronic device for determining the direction of a magnetic field, in which a mobile electronic compass device is used to measure three field vectors of the magnetic field the desired number of times. From each measurement, a data point (p1-p6) is formed in a three-dimensional co-ordinate system, for which measured data points a common reference point (C) is calculated. The location of the device is determined relative to the reference point in said co-ordinate system and the co-ordinates of the reference point obtained are compared to the co-ordinates of at least one previous reference point, and the co-ordinate values of the reference point are calibrated, after which the direction of the magnetic field is indicated with the aid of the reference point.

    摘要翻译： 一种用于确定磁场方向的方法和电子装置，其中使用移动电子罗盘装置测量磁场的三个场向量所需的次数。 在每个测量中，在三维坐标系中形成数据点（p1-p6），测量数据点计算公共参考点（C）。 相对于所述坐标系中的参考点确定装置的位置，并且将获得的参考点的坐标与至少一个先前参考点的坐标进行比较，并且将坐标值与 校准参考点，之后借助参考点指示磁场的方向。

    LOW COST ELECTRONIC COMPASS WITH 2D MAGNETOMETER
    50.
    发明申请
    LOW COST ELECTRONIC COMPASS WITH 2D MAGNETOMETER 失效
    低成本电子指南针，带二维磁铁计

    公开(公告)号：US20100115779A1

    公开(公告)日：2010-05-13

    申请号：US12594233

    申请日：2008-03-27

    申请人： Hans Marc Bert Boeve ,  Teunis Jan Ikkink ,  Haris Durc

    发明人： Hans Marc Bert Boeve ,  Teunis Jan Ikkink ,  Haris Durc

    IPC分类号： G01C17/30 ,  G01C21/00

    CPC分类号： G01C21/00 ,  G01C17/00

    摘要： An electronic compass has a 2D magnetometer for determining two of the three components of the earth-magnetic field vector. Values for the magnitude and inclination of the field at the location of the device are given. If at least one of the body axes of the device is held horizontally in operational use, an educated guess can be made about the actual orientation of the device (e.g., heading and tilt angles) with respect to the earth. Accordingly, this compass is a very-low cost device.

    摘要翻译： 电子罗盘具有用于确定地磁场矢量的三个分量中的两个的2D磁力计。 给出了设备位置的场的幅度和倾角值。 如果设备的至少一个身体轴线水平地保持在操作使用中，则可以对设备的实际取向（例如，航向和倾斜角度）相对于地球做出有根据的猜测。 因此，该罗盘是非常低成本的装置。