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    • 1. 发明授权
    • Length measurement system with at least one magnetic measuring rod
    • 长度测量系统至少有一个磁性测量棒
    • US06545463B1
    • 2003-04-08
    • US09936886
    • 2001-09-10
    • Fritz DettmannUwe LoreitHeike BischoffHilmar Dohles
    • Fritz DettmannUwe LoreitHeike BischoffHilmar Dohles
    • G01B714
    • G01D5/145G01D5/2492
    • In at least one measuring rod of the length measurement system the direction of magnetization lies in the plane of its cross-section which is perpendicular to the direction of measurement and forms a magnetization pattern. In the simplest case the magnetization of the cross-section is homogeneous. As one advances in the direction of measurement the magnetization pattern is increasingly rotated in relation to the starting end of the measuring rod. This magnetization results in a magnetic field whose direction is also continuously rotated as one advances in the direction of measurement. By means of at least one magnetic field sensor which responds to the direction of the magnetic field the prevailing field angle for each position is determined and can be clearly assigned to the position for a multitude of different variants of the length measurement system.
    • 在长度测量系统的至少一个测量棒中,磁化方向位于其垂直于测量方向的横截面的平面中并形成磁化模式。 在最简单的情况下,横截面的磁化是均匀的。 随着测量方向的进展,磁化模式相对于测量杆的起始端逐渐旋转。 这种磁化导致当测量方向前进时其方向也连续旋转的磁场。 通过响应于磁场方向的至少一个磁场传感器,确定每个位置的主要场角,并且可以将其明确地分配给长度测量系统的多个不同变体的位置。