Encoder with varying width light receiver and apparatus having the encoder
作者： Tsuyoshi Sakuma
DOI:
关键词: Perpendicular 、 Detector 、 Physics 、 Relative displacement 、 Light beam 、 Optics 、 Offset (computer science) 、 Encoder 、 Grating
摘要: An encoder has a detector that detects displacement of movable portion and generator generates multiple phase periodic signals with at least three different phases. The change according to the selector selects one which predetermined offset is added. In arrangement, light beam radiated toward scale on grating formed along relative direction. A light-receiving element receives modulated by obtain information between scale. receiving an opening width changes in direction perpendicular
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