کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10407362 | 892946 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fast piezoelectric actuation of an elastomeric micropore
ترجمه فارسی عنوان
راه اندازی سریع پیزوالکتریک یک میکروپور الاستومری
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
چکیده انگلیسی
A viscoelastic membrane unit fabricated from thermoplastic polyurethane, with a formed single micropore, was interfaced to a piezoelectric actuator to demonstrate rapid actuation of the pore. Changes in through-pore conductance were measured as a function of the voltage applied to the actuator. The pore was opened and closed either in a stepwise fashion, or else made to oscillate between more and less open positions at up to 200Â Hz. The step-driven response exhibited both a fast (<100Â ms) majority component and a slow (â¼1Â s) minority component. The oscillatory method indicated that the majority component reached 95% of the low frequency (5Â Hz) conductance amplitude in â¼5Â ms, fast enough for a pore to close upon a particle driven by a 50Â Pa pressure head. This advance in the rapid control of very small pores was achieved by reducing the amount of viscoelastic material between the pore and the source of actuation. This technique has potential for measurement and manipulation of micro- and nano-particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 46, Issue 9, November 2013, Pages 3560-3567
Journal: Measurement - Volume 46, Issue 9, November 2013, Pages 3560-3567
نویسندگان
Murray L. Jansen, Geoff R. Willmott, Ingrid Hoek, W. Mike Arnold,