吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (2): 602-608.doi: 10.13229/j.cnki.jdxbgxb201602039

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Design of interpolation chip for small photoelectric encoders

DING Ning1, 2, LI Hai-bin1, 2, PENG Le-li1, 2, YU Zhi-shuai1, 2, CHANG Yu-chun1, 2   

  1. 1.State Key Laboratory on Integrated Optoelectronics, Jilin University, Changchun 130012, China;
    2.College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
  • Received:2014-08-22 Online:2016-02-20 Published:2016-02-20

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Abstract: In order to improve the resolution of low precision small photoelectric encoder without increasing the encoder size and the scribed line number, an interpolation chip is designed that is suitable to small photoelectric encoder. First, the advantages and disadvantages of current electronic interpolation methods are analyzed, considering the resolution, precision, the circuit complexity and integration, and other factors. Based on the theory of phase modulation, an interpolation algorithm is proposed, which converts the measurement of spatial phase displacement to that of time difference value of instantaneous cycle. Then, the overall architecture of the whole chip is designed according to the algorithm principle, and each module of the chip is designed using Cadence software. The instantaneous cycle value of the modulation signal is obtained by simulation of the overall chip circuit. Finally, the measured spatial angular displacement after subdivision is compared with the theoretical value, and the subdivision precision is calculated. Experiment results show that, when the frequency of the photoelectric encoder signal input is in the range from 1 kHz to 100 kHz, the chip can realize optical signal segment of 0 to 100 times. When the input is at 100 kHz, the precision of 0.4571' can be achieved. Compared with other similar processing circuit, the designed chip has the advantages of high integration level, combining the distinguishing function and subdivision, good portability, and has certain engineering application value.

Key words: photoelectric encoder, interpolation chip, measurement of spatial phase displacement, resolution, precision

CLC Number: 

  • TP212.1
[1] 王显军.光电轴角编码器细分信号误差及精度分析[J].光学精密工程,2012,20(2):379-386.
Wang Xian-jun. Errors and precision analysis of subdivision signals for photoelectric angle encoders[J]. Optics and Precision Engineering,2012,20(2):379-386.
[2] Yang Ning. Design and realization of timely auto-detection based on high-precision photoelectric encoder[C]//Instrumentation, Measurement, Computer, Communication and Control (IMCCC),Harbin,2012:147-149.
[3] 董莉莉,熊经武,万秋华.光电轴角编码器的发展动态[J].光学精密工程,2000,8(2):198-202.
Dong Li-li, Xiong Jing-wu, Wan Qiu-hua. Development of photoelectric rotary encoders[J]. Optics and Precision Engineering, 2000,8(2):198-202.
[4] Kress B. Motion and position sensors for the auto-motive industry[C]//SPIE,Boston,MA,USA,2006:63790G.
[5] Warner M, Krabbendam V, Schumacher G. Adaptive periodic error correction for Heidenhain tape encoders[C]//SPIE, Krabbendam,Holland,2008:70123.
[6] 赵长海.高精度光电编码器动态细分误差的测量方法研究[D]. 北京:中国科学院,2008.
Zhao Chang-hai. The research of measure method of dynamic interpolation errors of high precision photoelectric encoder[D]. Beijing: Graduate University of the Chinese Academy of Sciences, 2008.
[7] Leviton D B. Ultra-high resolution, absolute, Cartesian electronic auto-collimator[C]//Proceedings of SPIE, Recent Developments in Traceable Dimensional Measurements,San Diego,California,USA,2003:468-475.
[8] Hoseinnezhad R R,Bab-Hadiashar A,Harding P.Calibration of resolver sensors in electromechanical braking systems: a modified recursive weighted least-squares approach[J].IEEE Transactions on Industrial Electronics, 2007,54(2):1052-1060.
[9] 冯英翘,万秋华,孙莹. 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):1825-1830.
Feng Ying-qiao, Wan Qiu-hua, Sun Ying. High resolution interpolation techniques of small photoelectric encoder[J]. Infrared and Laser Engineering, 2013, 42(7): 1825-1830.
[10] Breslow D H. High-performance optical encoders can have SmallSige,Weiht,and Cost[J].Electro-Optical System Design,1981,13(9):21-38.
[11] 刘杨,吕恒毅,谭立国,等.光电编码器信号处理技术的研究与进展[J].自动化仪表,2011,32(3): 16-20.
Liu Yang, Lyu Heng-yi, Tan Li-guo,et al. Resarching development of photoelectric encoder signal process technology[J]. Rrocess Automation Instrumentation, 2011, 32(3): 16-20.
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