本文研究主要是改變以往二維平面微管道結構的微液滴混合器，設計三維立體蜿蜒微管道結構的微液滴混合器。並與以往二維的結構做一個對照，藉此呈現本研究之三維立體蜿蜒微管道結構的微液滴混合器優於以往二維結構混合器之處。 本文所採用的研究方法是在微液滴內部加入微粒子(每個微粒子的直徑大約微1 μm)，並觀察微粒子在微液滴內部的分佈情況來分析其混合結果。而量測方法主要是利用影像分析軟體去做分析。當微粒子存在微液滴內部時，會觀察到微粒子會有集中與分散的分佈，從圖片中分析得知在微液滴內部會有不同光強度分佈。本研究將所得之光強度數據與混合效率去做分析，藉此判斷三維立體蜿蜒結構的微液滴混合器其混合結果之優劣。 本實驗最初會先建立微液滴尺寸與流速比關係，以便日後做實驗可以減少須花費之時間。而本實驗所分析之參數有五組(以微液滴尺寸去做區分:200 μm、250 μm、300 μm、350 μm、400 μm)，經由所呈現之實驗結果分析比較不同尺寸微液滴在二維管道結構與三維管道結構之混合效益。

This study is focused on the investigation of mixing inside droplets in two- and three-dimensional serpentine micro-channels. Micro-particles are injected into micro-droplets. The micro-particle distributions inside micro-droplets through different micro-channel structure are discussed. The particles induce centralization and decentralization in the micro-droplets, and the mixing performance is investigated. The first experiment is to establish a relationship between mi-cro-droplet size and flow rate ratio. This relationship can be used to reduce operation time in following experimental steps. Five droplet sizes are selected in the experiment, namely, 200 μm, 250 μm,300 μm, 350 μm and 400 μm, re-spectively. The measured results in terms of mixing performance are analyzed and compared for the two-dimensional and three-dimensional structure. The experimental results show that the three-dimensional structure has better mixing performance.

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