Magnetic Jaw-Tracking System Available with Six Degrees of Freedom
Magnetic Jaw-Tracking System Available with Six Degrees of Freedom
复制标题
具有六个自由度的磁力下颌跟踪系统
DOI：
10.3379/jmsjmag.28.711
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发表时间：
2004
影响因子：
--
通讯作者：
K. Arai
中科院分区：
文献类型：
--
作者：
S. Yabukami;K. Arai;H. Kanetaka;S. Tsuji;K. Arai
我们开发了一种由两个磁铁和双轴磁通门传感器组成的下颌跟踪系统。一块磁铁固定在受试者下颌的一颗牙齿上，另一块磁铁固定在受试者的前额上。该系统可以自然地检测作为刚体的下巴的运动。我们制造了具有独立上部和下部的传感器阵列，以获得良好的位置精度。使用下巴模型作为刚体，位置精度达到 0.1 毫米以内。使用一个刚性标记（由两块磁铁组成）实现了六个自由度和 100 Hz 传感周期，并实现了 0.3 毫米以内的位置精度。
We developed a jaw-tracking system consisting of two magnets and biaxial fluxgate sensors. One magnet is fastened to a tooth in the bottom jaw of the subject and another is fastened to the subject’s forehead. The system can naturally detect movement of the jaw as a rigid body. We fabricated sensor arrays with separate upper and lower parts in order to obtain good position accuracy. Positional accuracy to within 0.1 mm was achieved as a rigid body using a jaw model. Six degrees of freedom and 100 Hz sensing cycles were achieved using one rigid marker (composed of two magnets), and achieved position accuracy to within 0.3 mm.