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    • 1. 发明授权
    • Means for reducing interference among magnetometer array elements
    • 减小磁力计阵列元件之间干扰的手段
    • US5170566A
    • 1992-12-15
    • US533571
    • 1990-06-05
    • J. Thomas FowlerGeorge E. Selecman
    • J. Thomas FowlerGeorge E. Selecman
    • G01C17/30
    • G01C17/30
    • An improved fluxgate instrument for measuring heading as well and pitch and roll angles is disclosed. A plurality of fluxgate sensors are continuously energized with a DC feedback signal derived from the reading of each sensor so as to minimize magnetic cross-coupling between the sensors. In addition while two sensors are gimbally mounted to sense the horizontal components of the earth's magnetic field, the vertical field is sensed by two sensors strapped down relative to the instrument casing for sensing the earth's vertical magnetic field in order to compensate for latitude. Finally, sine and cosine coils surround the gimbally mounted sensors and generate AC fields which are sensed by the gimbally mounted sensors and are used to calculate the pitch and roll angles.
    • 公开了一种用于测量航向以及俯仰角和倾斜角的改进的磁通门仪。 多个磁通门传感器通过从每个传感器的读数导出的DC反馈信号连续通电,以便最小化传感器之间的磁交叉耦合。 此外,当平板安装两个传感器以感测地球磁场的水平分量时,垂直场由相对于仪器壳体相对的两个传感器感测,用于感测地球的垂直磁场,以补偿纬度。 最后,正弦和余弦线圈围绕着平板安装的传感器,并产生通过平板安装的传感器感测到的AC场,并用于计算俯仰角和俯仰角。