Design of an SMA Peristaltic Pump

A peristaltic infusion pump actuated by shape memory alloys (SMAs) with low noise and weak vibration is proposed in this study. An actuator based on SMA wires is designed first; successive squeezes of the SMA actuators on the tubes develop a peristaltic motion and thus pump the liquid forward. A mathematical model is presented for the peristaltic infusion pump to predict its average output flow rate. In the modeling process, effective stroke number in a cycle is obtained according to the actuation sequence. Stroke volume is related to the geometrical design variables: tube radius, effective squeeze width and lever arm ratio. The time interval of a cycle depends on the electric current that heats the SMA wire. In case study, relationship between the output flow rate and heating current is analyzed. A prototype of peristaltic infusion pump is fabricated in the laboratory. Experimental data of average output flow rate is obtained under different heating current and the results validate the effectiveness of the mathematical model.

並列關鍵字

Flow rate ； peristaltic infusion pump ； shape memory alloy

被引用紀錄

Hsieh, A. C. (2011). Architecture Exploration for Power, Yield, and Reliability in VLSI Designs [doctoral dissertation, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2011.00681

Tang, C. C. (2009). 系統單晶片下考量電壓島佈局的平面規劃 [master's thesis, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2009.00620

彭冠傑（2011）。車載隨意網路中緊急訊息之自適性廣播調控機制〔碩士論文，國立交通大學〕。華藝線上圖書館。https://doi.org/10.6842/NCTU.2011.01055

Hsu, C. P. (2011). CPU使用率與記憶體存取率導向之動態電壓頻率調整演算法 [master's thesis, National Taipei University of Technology]. Airiti Library. https://doi.org/10.6841/NTUT.2011.00141

李宜軒（2017）。視線感知即時翻譯工具的開發與評估〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201700806

國際替代計量

Design of an SMA Peristaltic Pump

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