Noninvasive Sensor for the Detection of Process Parameters for Multiphase Slug Flows in Microchannels

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• 作者：Nicolai Antweiler ; Sascha Gatberg ; Günther Jestel ; Joachim Franzke ; David W. Agar
• 刊名：ACS Sensor
• 出版年：2016
• 出版时间：September 23, 2016
• 年：2016
• 卷：1
• 期：9
• 页码：1117-1123
• 全文大小：512K
• ISSN：2379-3694

文摘

The growing market for and increasing applications of lab-on-a-chip-technologies and microreaction technology has led to a need for appropriate microscale in-line and online analytics. A new noninvasive technique for the in-line measurement of process parameters in microchannels has been developed, which enables both the monitoring of flow characteristics, e.g., velocity, slug length, phase ratio, and other microfluidic characteristics, as well as temperature. A single metal ring electrode is attached to a nonconductive microchannel and detects the triboelectrical signal induced by the multiphase flow, which is amplified and analyzed to obtain detailed information about the process parameters.