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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/65290

    Title: Design and construction of linear laser encoders that possess high tolerance of mechanical runout
    Authors: Lee, Chih-Kung;Wu, Chyan-Chyi;Chen, Shih-Jui;Yu, Liang-Bin;Chang, You-Chia;Wang, Yeong-Feng, Chen, Jau-Yu;Wu, Jeremy Wen-Jong
    Contributors: 淡江大學機械與機電工程學系
    Date: 2004-11
    Issue Date: 2013-05-31 11:43:02 (UTC+8)
    Publisher: Washington, DC: Optical Society of America
    Abstract: A linearly diffracted laser encoder that has high tolerance of head-to-scale misalignment and a high signal-to-noise ratio is described. The preservation of parallelism between the incident and the diffracted beams, which can be attributed to a built-in folded 1× telescope, allows for the high alignment tolerance. It can be shown that, by coupling this newly developed circular polarization interferometer configuration with grating scale geometry optimization, one can eliminate the problems associated with signal distortion that arise from various efficiencies of the p- and the s-polarized light beams and obtain a high signal-to-noise ratio. Both theoretical and experimental results are presented to confirm the improved results and performance.
    Relation: Applied Optics 43(31), pp.5754-5762
    DOI: 10.1364/AO.43.005754
    Appears in Collections:[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Journal Article

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