| Title: |
Analysis and control of monolithic piezoelectric nano-actuator
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| Author: | |
| Document Type: |
Dissertation
|
| Department: |
Department of Electrical and Computer Engineering
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| Degree: |
Doctor of Philosophy
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| Major: |
Electrical Engineering
|
| Advisory Committee: |
Chang, Timothy Nam
Meyer, Andrew Ulrich
Friedland, Bernard
Kuo, Marshall Chuan Yung
Ji, Zhiming
Baruh, Haim
|
| Thesis Date: |
2001, January
|
| Keywords: |
Monolithic Piezoelectric Actuator
Real-Time Control Theory
Digital Signal Processing
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| Availability: |
Unrestricted
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| Abstract: |
The study of the monolithic piezoelectric actuator, the dominant type of micropositioner is an attractive and challenging area, where realtime control theory and digital signal processing are effectively applied. The actuator can be applied in precision instruments and precision control, such as microscopes, medical and optics instruments because of the piezoelectric ceramic's high resolution, fast transient response, and potential low cost. However, hysteresis nonlinearity and lightly damped vibration exist in the system, which limit the actuator applications. This work focuses on the hysteresis characteristics in time and frequency domains along with experimental and simulated results to verify the effectiveness of the model in describing the hysteresis phenomena. The analytic expressions of the hysteresis harmonics are further applied in hysteresis parameter estimation. A reduced order nonlinear hysteresis observer compensator is proposed, and the stability of the compensated system is discussed. The compensator reduces the hysteresis effect significantly under simulated and experimental conditions. Furthermore, an adaptive hysteresis observer compensator is further presented to compensate the slowly changed hysteresis parameters. Time division multi-control strategy is proposed to implement fast transient response, low vibration and high resolution. Extensive numerical simulation and real-time experiment are carried out to verify the control strategies. GUI is developed to implement the communication between the code in DSP memory and Labview, which improves the efficiency in system test. |
| Complete Thesis: |
njit-etd2001-056
(215 pages ~ 7,371 KB pdf)
|
| Download by Chapters: |
Front
Matter (Title Page, Abstract, Table
of Contents, etc. ~ 17 pages ~ 689 KB pdf)
Chapter
1: Introduction (10 pages ~ 472 KB
pdf)
Chapter
2: Hardware Descriptions (6 pages ~
368 KB pdf)
Chapter
3: Real Time Operating System (13 pages
~ 540 KB pdf)
Chapter
4: Hysteresis Characteristics (12 pages
~ 464 KB pdf)
Chapter
5: Analytic Expressions Of Hysteresis Harmonics (9
pages ~ 413 KB pdf)
Chapter
6: Piezoelectric Actuator Model (9
pages ~ 410 KB pdf)
Chapter
7: Nonlinear Observer Hysteresis Compensation (20
pages ~ 886 KB pdf)
Chapter
8: Adaptive Hysteresis Compensator (13
pages ~ 496 KB pdf)
Chapter
9: Vibration And Precision Control Time Division Multi-Controller
(8 pages ~ 434 KB pdf)
Chapter
10: Conclusions (2 pages ~ 173 KB pdf)
Appendix
A: DSP Memory Distribution (1 pages
~ 128 KB pdf)
Appendix
B: Nonlinear Scalar Factor (12 pages
~ 402 KB pdf)
Appendix
C: Hysteresis Observer Compensation (21
pages ~ 704 KB pdf)
Appendix
D: Adaptive Hysteresis Compensation (22
pages ~ 740 KB pdf)
Appendix
E: Fine Motion Control And Time Division Multi-Controller (34
pages ~ 1,029 KB pdf)
Appendix
F: Iteration Derivation Using Matlab (2
pages ~ 155 KB pdf)
References
(3 pages ~ 255 KB pdf)
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