Optofluidic Analysis System for Ethanol Solutions

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• 刊名：Procedia Engineering
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：47
• 期：Complete
• 页码：651-654
• 全文大小：591 K

文摘

We present a versatile optofluidic analysis system for non-invasive, flow-through examination of alcoholic solutions. The underlying principle is based on partial total internal reflection at the solid-liquid interface. Using an on-chip air micro-prism the laser beam is diverged, resulting in a unique reflected/transmitted light pattern depending on the solution being examined. Ethanol containing samples were passed through devices having different working ranges. Measurements between 0 and 90 % ethanol were successfully conducted. Fabricated by means of rapid-prototyping techniques, the design can be customized in terms of working range as well as resolution in a cost-effective and fast manner.