کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
738103 893983 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exploration and evaluation of embedded shape memory alloy (SMA) microvalves for high aspect ratio microchannels
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Exploration and evaluation of embedded shape memory alloy (SMA) microvalves for high aspect ratio microchannels
چکیده انگلیسی

This paper presents a microvalve actuated by shape memory alloy (SMA). This microvalve is designed particularly for controlling high aspect ratio polydimethylsiloxane (PDMS) channels and can be embedded into PDMS based microfluidic chips. This SMA microvalve can be designed either as a normally closed or normally open microvalve. Both designs utilize SMA wires for thermal actuation and operation to open or close microchannel flow. In this work, detailed parametric studies have been performed. The response open time of the normally open microvalve could be as low as 1 s at a flow rate of 4 μL/min, which is very short for a thermomicrovalve.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 168, Issue 1, July 2011, Pages 155–161
نویسندگان
, ,