光学学报, 2016, 36 (11): 1112001, 网络出版: 2016-11-08   

基于线阵图像传感器的高分辨力单圈绝对式编码方法

High Resolution Absolute Code Disk Based on Linear Array Image Sensor
作者单位
1 长春理工大学电子信息工程学院, 吉林 长春 130022
2 中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
摘要
为了提高测角分辨力,缩小码盘尺寸,并克服传统图像式编码器译码速度慢等缺点,提出了一种单圈绝对式高分辨力编码技术。通过分析码盘刻线与分辨力之间的关系,提出了绝对式单圈移位码编码方法;采用准直光源照射和线阵图像探测器识别的方法实现单圈码盘的译码方式;根据所提出的方法,设计了高分辨力码盘及译码电路。实验采用直径38 mm、刻划有10位编码的单圈码道,成功实现了10位编码的译码。该编码方式较传统采用面阵图像探测器的编码方法具有更快的响应频率。
Abstract
A high resolution single circle absolute coding technique is proposed to improve angle measure resolution, reduce disk dimensions, and overcome the shortcoming of low speed in traditional image encoder. The single circle absolute coding method is proposed by analyzing the relationship between disk reticle and resolution, a decoding method is proposed by using collimation light source and linear array image sensors, and the high resolution disk and decoding circuit are designed based on the proposed method. In the experiment, the diameter of single circle disk is 38 mm, the digit is 10, and the decoding of 10 bits coding is achieved. The proposed method has faster response frequency than the traditional coding method with the array image detector.
参考文献

[1] Kao C, Huang H, Lu S. Optical encoder based on Fractional-Talbot effect using two-dimensional phase grating[J]. Optics Communications, 2010, 283(9): 1950-1955.

[2] 冯英翘, 万秋华, 孙莹, 等. 小型光电编码器的高分辨力细分技术[J]. 红外与激光工程, 2013, 42(7): 1825-1829.

    Feng Yingqiao, Wan Qiuhua, Sun Ying, et al. High resolution interpolation techniques of small photoelectric encoder[J]. Infrared and Laser Engineering, 2013, 42 (7): 1825-1829.

[3] 叶盛祥. 光电位移精密测量技术[M]. 乌鲁木齐: 新疆科技卫生出版社, 2003.

    Ye Shengxiang. Optoelectronic displacement precision measurement technology[M]. Urumqi: Xinjiang Science and Technology Health Press, 2003.

[4] Hane K, Endo T, Ishimori M, et al. Integration of grating-image-type encoder using Si micromachining[J]. Sensors and Actuators A: Physical, 2002, 97-98: 139-146.

[5] 吴宏圣, 曾琪峰, 乔栋, 等. 提高光栅莫尔条纹信号质量的滤波方法[J]. 光学 精密工程, 2011, 19(8): 1944-1949.

    Wu Hongsheng, Zeng Qifeng, Qiao Dong, et al. Filtering method of improving quality of grating Moiré fringe[J]. Optics and Precision Engineering, 2011, 19(8): 1944-1949.

[6] Leviton D B, Frey B. Ultra-high resolution, absolute position sensors for cry static applications[C]. SPIE, 2003, 4850: 776-787.

[7] Leviton D B, Garza M S. Recent advances and applications for NASA's new, ultra-high sensitivity, absolute, optical pattern recognition encoders[C]. SPIE, 4091: 375-384.

[8] Sugiyam Y, Matsu Y, Toyod H, et al. A 3.2 kHz 14-bit optical absolute rotary eneoder with a cmos profile sensor[J]. IEEE Sensors Journal, 2008, 8(8): 1430-1436.

[9] Bajic′a J S, Stupara D Z, Dakic′b B M, et al. An absolute rotary position sensor based on cylindrical coordinate color space transformation[J]. Sensors and Actuators A: Physical, 2014, 213: 27-34.

[10] Tresanchez M, Pallejà T, Teixidó M, et al. Using the image acquisition capabilities of the optical mouse sensor to build an absolute rotary encoder[J]. Sensors and Actuators A: Physical, 2010, 157(1): 161-167.

[11] Kim J, Kim J W, Kang C, et al. Absolute angle measurement using a phase-encoded binary graduated disk[J]. Measurement, 2016, 80: 288-293.

[12] 王英男, 袁波, 倪旭翔. 基于面阵探测器的绝对轴角编码器的细分技术[J]. 浙江大学学报, 2011, 45(2): 370-374.

    Wang Yingnan, Yuan Bo, Ni Xuxiang. Subdivision technique of absolute angular encoder using array detector[J]. Journal of Chinese Zhejiang University, 2011, 45(2): 370-374.

[13] 谈颖皓. 基于线阵探测器的绝对轴角编码器技术[D]. 杭州: 浙江大学, 2012.

    Tan Yinghao. The absolute angular encoder technique using linear detector[D]. Hangzhou: Zhejiang University, 2012.

[14] 齐荔荔. 小型高分辨力图像式光电编码器原理研究[D]. 北京: 中国科学院大学, 2013.

    Qi Lili. The principle research on small optical pattern rotary encoder with highresolution[D]. Beijing: University of Chinese Academy of Sciences, 2013.

杜颖财, 宋路, 万秋华, 于海. 基于线阵图像传感器的高分辨力单圈绝对式编码方法[J]. 光学学报, 2016, 36(11): 1112001. Du Yingcai, Song Lu, Wan Qiuhua, Yu Hai. High Resolution Absolute Code Disk Based on Linear Array Image Sensor[J]. Acta Optica Sinica, 2016, 36(11): 1112001.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!