微液滴傳送技術是不需要微流道便可控制流體的新技術，具有製程簡便、微量控制、混合容易、成本低廉等優點。由於其裝置架構同時滿足兩種會對液體產生作用力的物理現象：介電質材料上的電濕潤效應(Electrowetting on dielectrics, EWOD)、及介電質電泳效應 (Dielectrophoretic effect, DEP)，本文主要是設計實驗去確認是何種效應造成液體移動的現象。以Pellat的雙電極板實驗為架構，我們發現在供應直流電(DC)時，造成液面上升的高度與介電質材料上的電濕潤效應所預期的相符。T. B. Jones的團隊在使用交流電(AC)的實驗中，發現頻率將影響液面上升高度的大小。經由電路分析，了解頻率如何影響電壓的分佈，進而影響驅動液體的理論機制與作用力大小。最後並探討ㄧ些重要參數對實驗的影響，如何設計ㄧ個微液滴傳送裝置能夠達到較好的效果。

Droplet transport technology is a new technology which doesn’t need channels to control fluids. It has some advantages, such as simple fabrication, minute volume controlling, easy mix, low cost, and so on. Its device satisfied two physical phenomena which affects fluids: electrowetting on dielectrics (EWOD), and dielectrophoretic effect (DEP). We design an experiment to identify the phenomenon which makes the droplet moving. By using Pellat’s two parallel electrodes experiment model, our experiment shows when we used DC power, the height of liquid-air interface is the same as expectancy of EWOD phenomenon. T. B. Jones’ group discovered when used AC power, frequency would influence the height of liquid-air interface. To analyze the circuit, we know how frequency effect the distribution of voltage, and partial voltage affect physical phenomena and the force. At last, we discuss the influences of some important parameters to design a better microfluidic transport device.

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