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LINEAR MOTION AND ROTATION DETECTOR, LINEAR MOTION AND ROTATION DETECTOR UNIT, AND LINEAR MOTION AND ROTATION DRIVE DEVICE
LINEAR MOTION AND ROTATION DETECTOR, LINEAR MOTION AND ROTATION DETECTOR UNIT, AND LINEAR MOTION AND ROTATION DRIVE DEVICE
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机译:线性运动和旋转检测器,线性运动和旋转检测器单元以及线性运动和旋转驱动装置
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摘要
A linear motion and rotation detector that detects displacement of an output shaft includes a linear motion position detector including a linear motion scale that includes a linear motion position detection magnetization pattern on a circumferential wall surface facing in a radial direction, and a first magnetic detection element facing the linear motion position detection magnetization pattern from the radial direction and detecting a change in magnetic field, and a rotational position detector including a rotation scale that includes a rotational position detection magnetization pattern on a flat surface facing in an axial direction, and a rotational position detection magnetoresistance element facing the rotational position detection magnetization pattern from the axial direction and detecting a change in magnetic field. The linear motion scale moves in the axial direction together with the output shaft, and the rotation scale coaxially rotates with the output shaft at a predetermined position in the axial direction.
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