Acoustic Love wave platform with PDMS microfluidic chip-

Authors
V. Raimbault, D. Rebière, C. Dejous, M. Guirardel, V. Conedera.


Lab
IMS Bordeaux-ENSEIRB, CNRS UMR 5818, Université Bordeaux 1, 351 cours de la Libération, F-33405 Talence, France

Journal
Sensors and Actuators A: Physical

Abstract
This paper exhibits a microfluidic solution to allow Love wave acoustic oscillators working under highly viscous liquid environments. Attenuation caused by viscous coupling is limited by using a poly(dimethylsiloxane) (PDMS) chip bonded on the Love wave device. Liquid volume required for a measurement is thus minimized to the microliter order. Thanks to insertion losses decrease, the non-Newtonian behavior of silicone oils up to 30 Pa s can be observed in oscillator mode. Numerical simulations based on the transfer matrix method have been performed to modelize the sensor response.

Source :

http://www.sciencedirect.com/science/article/pii/S0924424707004396

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