Diffractive Laser Optical Encoder with High Tolerance to High-speed Mechanical Runout
學年 89
學期 2
出版（發表）日期 2001-04-01
作品名稱 Diffractive Laser Optical Encoder with High Tolerance to High-speed Mechanical Runout
作品名稱（其他語言） 對機具高速運動偏擺具高對位公差之繞射式雷射線性光學尺
著者 吳乾埼 ; Wu, Chyan‐Chyi; 李世光; Lee, Chih‐Kung; 呂秀雄 ; Lu, Shui‐Shong; 陳文中; Chen, Wen‐Jong; 楊青桑 ; Yang, Ching‐Sang; 謝啟堂; Hsieh ,Chi‐Tang
單位 淡江大學機械與機電工程學系
出版者 Taipei : Chinese Institute of Chemical Engineers
著錄名稱、卷期、頁數 Journal of the Chinese Institute of Engineers=中國工程學刊 24(4), pp.419-429
摘要 This paper is concerned with the design of a laser linear encoder with high head‐to‐scale alignment tolerance. It adopts 1-x telescope design that can increase by 6 to 20 times the head‐to‐scale tolerance of existing encoders of the same class. The optical design of the laser encoder can avoid effects from differences in polarization diffraction efficiencies. In other designs the non‐uniformity of the temperature field within the head‐to‐scale range yields a nonzero initial phase and thus decreases the measurement accuracy of the system. The misalignment of the polarizers for the circular polarization interferometer configuration makes for both inclined and elliptical quadrature signals in the output. For an encoder system which adopts an arctangent algorithm, this effect may lower the measuring resolution. The resolution of our laser encoder design is verified by experiments.
關鍵字 high‐speed mechanical runout;error analysis;1‐x telescope;conical diffraction
語言 en
ISSN 0253-3839
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度
國別 TWN
公開徵稿
出版型式 紙本
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