Measurement of dynamic properties of small volumes of fluid using MEMS

Cheneler, David and Ward, Michael C. L. and Adams, Michael J. and Zhang, Zhibing (2008) Measurement of dynamic properties of small volumes of fluid using MEMS. Sensors and Actuators B: Chemical, 130 (2). pp. 701-706. ISSN 0925-4005

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Abstract

A model based on the response of a micro-rheometer which permits the measurement of the linear viscoelastic properties of small volumes of a fluid is described. The configuration involves a liquid being contained within a capillary bridge between two flat smooth parallel platens that are actuated sinusoidally using a compliant MEMS device. Approximate closed-form equations are derived to analyse the data taking account of both the capillary forces and those arising from viscoelastic flow. The approximate theory is compared to a full numerical simulation of the response of the MEMS rheometer and the validity is discussed.

Item Type:
Journal Article
Journal or Publication Title:
Sensors and Actuators B: Chemical
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2505
Subjects:
?? squeeze flowcapillary bridges mems viscoelastic properties complex fluidmaterials chemistryinstrumentationsurfaces, coatings and filmsmetals and alloyselectronic, optical and magnetic materialselectrical and electronic engineeringcondensed matter physics ??
ID Code:
67479
Deposited By:
Deposited On:
08 Nov 2013 09:46
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 14:21