| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 744062 | Sensors and Actuators B: Chemical | 2008 | 6 Pages |
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.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
David Cheneler, Michael C.L. Ward, Michael J. Adams, Zhibing Zhang,