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    • 2. 发明公开
    • 자기장 센서 디바이스 및 나침반
    • 组合磁场梯度和磁场强度传感器
    • KR1020060126739A
    • 2006-12-08
    • KR1020067014899
    • 2004-12-16
    • 키네티큐 리미티드
    • 킹,다비드,오우리브룬손,케빈,마이클
    • G01R33/022
    • G01R33/0286G01R33/022G01R33/0283
    • A magnetic field sensor device (2) is described that comprises an oscillatory member (8) and current control means (6). The current control means (6) is arranged to pass an alternating current (AC) along at least first (10) and second (12) current paths provided through the oscillatory member (8) and is arranged to provide magnetic gradiometer mode operation (i.e. to measure magnetic field gradient) in which current flow through the first current path (10) is in substantially the opposite direction to current flow through the second current path (12). The current control means (6) can also prove magnetometer mode operation (i.e. to measure magnetic field strength). The magnetic field sensor (2) may be used in a compass.
    • 描述了包括振荡构件(8)和电流控制装置(6)的磁场传感器装置(2)。 电流控制装置(6)被布置成沿着通过振荡构件(8)提供的至少第一(10)和第二(12)电流路径传递交流电(AC),并且布置成提供磁梯度计模式操作 以测量磁场梯度),其中流过第一电流路径(10)的电流基本上与通过第二电流路径(12)的电流相反。 电流控制装置(6)还可以证明磁力计模式操作(即测量磁场强度)。 磁场传感器(2)可以用于罗盘。