کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5019667 1369622 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Soft-film dynamics of SH-SAW sensors in viscous and viscoelastic fluids
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Soft-film dynamics of SH-SAW sensors in viscous and viscoelastic fluids
چکیده انگلیسی

We theoretically investigate surface acoustic waves with horizontal polarization (SH-SAWs) propagating in a three-layer system consisting of an elastic substrate and two viscoelastic overlayers. For the limiting case of an acoustically thin middle layer and an infinite top layer, we derive analytical expressions for the phase velocity shift and the wave attenuation. These expressions demonstrate the importance of taking into account the viscoelastic coupling between the two overlayers. Numerical calculations using a combined Maxwell/Voigt scheme confirm our analytical results and also indicate that it is possible for viscoelasticity to cause SH-SAWs to vanish.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensing and Bio-Sensing Research - Volume 11, Part 2, December 2016, Pages 78-85
نویسندگان
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