以形狀記憶合金驅動X-Y平台的設計與控制

Design and Control of a X-Y Table Using Shape Memory Alloy

黃瑞昌(Jui-Chang Huang)

指導教授 ： 蕭俊祥

國立臺北科技大學/機電學院/機電整合研究所/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00492

摘要

利用電流變液、磁流變液、壓電材料、形狀記憶合金(Shape Memory Alloy，簡稱SMA)等發展出新的驅動機構近來不斷被學術研究和探討。不同於一般伺服馬達驅動，這些以材料特性作成的驅動機構有著設計簡單、低耗電、直接傳達力和力矩等特色。而在這之中以SMA利用形狀記憶效應現象所產生的力和力矩相對最大，由此現象本文設計出驅動X-Y平台的致動器來取代傳統的伺服馬達，以光學滑鼠感測出目前位置並迴授到數位訊號控制器dsPIC30F4011，應用PID、模糊邏輯及類神經網路等控制器對SMA進行電流操控，達到X-Y平台的運動控制。

關鍵字

形狀記憶合金 ； 光學滑鼠 ； 數位訊號控制器

並列摘要

Recently many new structures have been designed, in which smart materials such as electro-rheological fluid, magneto-rheological fluid, piezoelectric material, shape memory alloy have been embedded in. Unlike servo motor driven structures, easy design, low power consumption, and direct drive are characteristics associated with structures using these smart materials. In this paper we present design of an X-Y table using shape memory alloy as the driving power source due to its relatively large force and torque output. Optical mouse has been chosen for monitoring the platform movements, while a DSC of dsPIC30F4011 has been used for implementing the control algorithms. PID, fuzzy logic and neural network controllers are employed for outputting currents to the SMA for motion control of the X-Y table.

並列關鍵字

Shape Memory Alloy ； Optical Mouse ； Digital Signal Controller

參考文獻

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