Title page for 952206032


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Student Number 952206032
Author Wei-kai Su(蘇暐凱)
Author's Email Address No Public.
Statistics This thesis had been viewed 1514 times. Download 638 times.
Department Optics and Photonics
Year 2007
Semester 2
Degree Master
Type of Document Master's Thesis
Language English
Title Research of high resolution optical rotary encoder
Date of Defense 2008-07-10
Page Count 83
Keyword
  • optical encoder
  • rotary encoder
  • Abstract This paper employs the radiometry and non-sequential ray tracing simulation to analyze the optical properties of optical rotary encoders. Use the numerical integration solution based on radiometry and the ray tracing simulation result to do curve fitting. Then we verify our numerical integration solution and ray tracing simulation result by the experiment result. By the RMSE (root mean square) analysis, the RMSE of experimental result and simulation result is 0.00171, and the RMSE of experimental result and numerical solution is 0.00168. We also optimize the sensitivity analysis of ORE, and we find that the effect of variance of width of the code fringe p is most significant. The effect of distance between the disc and the mask d is secondary.
    Finally, This paper present a novel absolute addressing method for ORE, and this method also can be employed to other kings of encoder.
    Table of Content Abstract......................................................................................................II
    Contents...................................................................................................IV
    Chapter 1 Introduction................................................................................1
    Section 1.1 What’s optical rotary encoder (ORE)...............................................4
    Section 1.2 Why is the high resolution encoder important?...............................7
    Section 1.3 How to do high resolution?...............................................................7
    Chapter 2 Principles and theories of optical rotary encoder (ORE)...........9
    Section 2.1 Principle of optical rotary encoder (ORE)........................................9
    Section 2.2 Radiometry.......................................................................................16
    Section 2.3 The geometric structure of ORE.....................................................19
    Section 2.4 Principle and theory of p-n junction photodiode (PD)...................20
    Section 2.5 Optical characteristics of LED........................................................23
    Chapter 3 Analysis of the optical encoder................................................25
    Section 3.1 Numerical modeling by Radiometry................................................25
    Section 3.2 Ray tracing Simulation of optical encoder with ASAP..................34
    Section 3.3 Experiments and analysis of the experimental results...................41
    Section 3.4 Sensitivity analysis of optical rotary encoder..................................46
    Chapter 4 Principles of novel absolute addressing method......................50
    Chapter 5 Simulation of novel Absolute addressing method...................53
    Section 5.1 Principle of novel absolute addressing method..............................53
    Section 5.2 Principle of phase unwrapping.......................................................53
    Section 5.3 Resolution affected by sensitivity....................................................60
    Chapter 6 Embodying simulation of novel Absolute addressing method61
    Section 6.1 Embodying apparatus and procedure.............................................61
    Section 6.2 Processes and result of embodying simulation...............................64
    Chapter 7 Discussions and conclusions....................................................68
    References.................................................................................................70
    Publications...............................................................................................73
    Reference [1] D. Maschera, A. Simoni, M. Gottardi, L. Gonzo, S. Gregori, V. Liberali, and G. Torelli, "An automatically compensated readout channel for rotary encoder systems," Instrumentation and Measurement, IEEE Transactions on, vol. 50, pp. 1801-1807, 2001.
    [2] K. Jeong, J. Park, and J. S. Yoon, "High-precision encoder using moire fringe and neural network," in Optomechatronic Systems, Boston, MA, USA, 2001, pp. 1-8. “
    [3] Y. Matsuzoe, N. Tsuji, T. Nakayama, K. Fujita, and T. Yoshizawa, "High-performance absolute rotary encoder using multitrack and M-code," Optical Engineering, vol. 42, pp. 124-131, 2003.
    [4] F. Gindele, F. Gaul, S. Kraus, S. Sigloch, and U. Teubner, "Miniaturised optical displacement sensor," in Optical Sensing, Strasbourg, France, 2004, pp. 254-258.
    [5] M. Gottardi, L. Gonzo, S. Gregori, V. Liberali, A. Simony, and G. Torelli, "An integrated CMOS front-end for optical absolute rotary encoders," Analog Integrated Circuits and Signal Processing, vol. 34, pp. 143-154, Feb 2003.
    [6] 黃繼震,“光學編碼器的訊號擷取介面與應用”,馬達科技研究中心.
    [7] B. Hebert, M. Brule, and L. A. Dessaint, "A high efficiency interface for a biphase incremental encoder with error detection [servomotor control]," Industrial Electronics, IEEE Transactions on, vol. 40, pp. 155-156, 1993.
    [8] M. A. Hassan and N. M. Stephanos, "A Novel Application of theSynchro as a Digital Position Transducer," Industrial Electronics and Control Instrumentation, IEEE Transactions on, vol. IECI-18, pp. 134-136, 1971.
    [9] P. Kantramanon, S. Toonnark, and B. Papasratorw, "A VLSI-Optical Encoder REader Circuit for Position Control System," in Industrial Electronics Society, 1988. IECON '88. Proceedings., 14 Annual Conference of, 1988, pp. 921-925.
    [10] Robert W. Boyd, “Radiometry and the detection of optical radiation,” 1993.
    [11] R. H. Kingston, “Detection of optical and infrared radiation”, 1978.
    [12] Robert M. Setbacken, “Dynamic resolution for optical encoders.”
    [13] Giorgio Rizzoni, “Principles and applications of electrical engineering”, The Ohic State University, 2007.
    [14] E. Fred Schubert, “Light-emitting diodes,” Cambrige University Press, New York, 2003.
    [15] George Lindfield, John Penny, “Numerical method using MATLAB,”Rentice Hall Inc, 2000.
    [16] “The ASAPTM Primer,” Breault Research Organization, Inc, 2004
    [17] http://www.delta.com.tw/
    [18] “PCI-8132 2 Axes Servo/Stepper Motion Control Card User’s Guide,”ADLINK Technology Inc,2000.
    [19] D. C. Montgomery, G. C. Runger, “Applied statistics and probability for engineers,” John Wiler & Sons, Inc, 2003.
    [20] M. Faccio, P. Grande, F. Parasiliti, R. Petrella, and M. Tursini, "An embedded system for position and speed measurement adopting incremental encoders," in Industry Applications Conference, 2004. 39thIAS Annual Meeting. Conference Record of the 2004 IEEE, 2004, pp. 1192-1199 vol.2.
    [21] R. E. Ziemer, W. H. Tranter, “Principle of communications: systems, modulation, and noise,” John Wiler & Sons, Inc, 2002.
    [22] Venceslav F. Kroupa, “Phase Lock Loops and Frequency Synthesis”, Academy of Science of the Czech Republic, Prague, 2002.
    [23] W. Kester, “Undersampling applications,” Practical Analog Design Techniques(Analog Device), 1995.
    [24] PCI-1714 User’s Manual, ADVANTECH, 2003.
    [25] Agilent 33250A 80 MHz Function/Arbitrary Waveform Generator Serve Guide, Agilent Technolodgies, 2003.
    [26] 黃振溢, “高動態範圍雷射測距系統之研製,” 國立中央大學光電科學研究所碩士論文, 2005.
    [27] OL2100,OL2100-DF Datasheet, OPTILAB Microsystems, 2001.
    [28] M332500-UVW,D332500-UVW10, Delta electrics, Inc., 2004
    Advisor
  • Mang Ou-yang(歐陽盟)
  • Files
  • 952206032.pdf
  • approve in 2 years
    Date of Submission 2008-07-21

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