| Autor: |
Qiang Zhao, Yu-Long Zhao, Chuan Yang, Wei-Xuan Jing |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. |
| DOI: |
10.1115/micronano2008-70242 |
| Popis: |
In order to measure the microcosmic profiles of ultra-smooth surfaces, a high-accuracy noncontact micro-Coordinate Measuring Machine (micro-Coordinate Measuring Machine, micro-CMM) is developed in this paper. The working table of this measurement device is located by a macro-micro dual-drive system. A closed-loop control system, which is composed by a laser interferometer and stepper motors, is adopted to improve the positioning accuracy of the macro-positioning stage. The experimental results show that the positioning accuracy of this system is obviously improved and satisfies the positioning requirement of the macro-positioning stage. Because the positioning accuracy of the flexure-based micro-positioning stage can not satisfy the design requirement under the control of the traditional PID control, A PID control system based on Adaptive Neural-Fuzzy Inference is proposed to improve the control accuracy of the micro-positioning stage. The experimental results show that this system can improve the positioning accuracy of the micro-positioning stage, and basically meets the requirement of the design. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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