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طراحی و نمونه سازی یک انکودر هیبرید نوری بازتابی افزایشی - مطلق با استفاده از فناوری دیسک فشرده
صدری، سبحان Sadri, Sobhan
Cataloging brief
طراحی و نمونه سازی یک انکودر هیبرید نوری بازتابی افزایشی - مطلق با استفاده از فناوری دیسک فشرده
پدیدآور اصلی :
صدری، سبحان Sadri, Sobhan
ناشر :
صنعتی شریف
سال انتشار :
1388
موضوع ها :
رمزگذار نوری بازتابی Reflective Optical Encoder مدل سازی هد نوری Optical Pickup Modeling ...
شماره راهنما :
58-40406
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AUTHOR'S DECLARATION
(3)
Abstract
(4)
Acknowledgements
(5)
Dedication
(6)
List of Tables
(13)
Chapter 1
(14)
Introduction
(14)
Background literature
(14)
Project Objectives
(15)
Thesis arrangement
(18)
Chapter 2
(19)
Introduction to Encoders, Compact Disc and CD-ROM Drives
(19)
Incremental Encoders
(20)
Absolute Rotary Encoders
(22)
CD-ROM [1,11]
(23)
Compact Disc
(24)
Pressed CD-ROM [11]
(24)
CD-Recordable [10]
(25)
Optical Pick-up block
(27)
Photodiode array
(28)
2-axes device
(31)
The Servo Circuits in the CD-ROM
(32)
Focus Servo Circuits
(33)
Fine Tracking Servo Circuits
(34)
The sled servo circuits
(34)
The Spindle Servo Circuit
(34)
Compact Disc Encoding
(35)
Signal Processing
(36)
Conclusion
(39)
Chapter 3
(40)
Model Selection and Reverse Engineering
(40)
Model selection
(40)
Reverse Engineering
(42)
Optical Pick-up
(43)
CD -Laser Driver
(44)
PDIC
(48)
Power Driver IC
(49)
Conclusion
(52)
Chapter 4
(53)
Design of proposed rotary encoder blocks
(53)
Power Supply
(55)
40-pin Adapter
(56)
Laser Driver IC block
(57)
Power Driver IC
(59)
PDIC
(60)
RF Signal Conditioner
(60)
Buffers Block
(61)
Differential Amplifier
(62)
Inverter Amplifier
(64)
Low Pass Filter
(65)
Error Signal Conditioner
(69)
Focus Search Circuit
(71)
Focus Servo Circuit
(73)
Conclusion
(73)
Chapter 5
(74)
Design of the Focus Servo Circuit
(74)
Focus Actuator Modeling
(74)
Dynamic Disturbances
(79)
Servo loop
(80)
CD-ROM Standardized Vertical Deviation
(82)
PID Controller
(84)
Offline PID Tuning
(86)
Implementation of the PID controller for the offline method and the Results
(88)
Online PID Gain Tuning and Results
(98)
Phase-Lead Controller
(102)
Implementation of the Lead Compensator and Results
(105)
Implementing PIDs and Lead Controllers on the Code Disc
(108)
Conclusion
(110)
Chapter 6
(112)
Implementation of the Rotary Encoders and Code Discs
(112)
Code Disc
(114)
Two channel Incremental Code Disc and Implementation Results
(115)
One Channel Incremental Code with Length Code Concept and Results
(117)
Hybrid Incremental- Absolute Disc Code Concept and Results
(118)
Conclusion
(121)
Chapter 7
(122)
Conclusion and Future Works
(122)
Conclusion
(122)
Proposed Future Works
(123)
References
(125)
Appendix A
(128)
Spindle motor Speed Changer
(128)
Appendix B
(133)
PCB Designed Maps
(133)
Appendix C
(137)
Codes for focus search circuit and spindle motor speed changer circuit
(137)
