Nano Archive

Capillary force actuation

Knospe, Carl R. and Nezamoddini, Seyed Ali (2010) Capillary force actuation. Journal of Micro-Nano Mechatronics, 5 (3). pp. 57-68.



Microactuators based upon the alteration of the capillary pressure within a conducting liquid bridge via the application of electric potential are investigated. The physical principles of actuation are elucidated and the equations expressing bridge shape and force produced as a function of applied voltage are developed. It is shown that capillary force actuators are capable of achieving significant greater forces at lower voltage than electrostatic actuators. Charts for the design of actuators are presented. A comparison to electrostatic actuation provides a novel perspective on the mechanism of capillary force actuation. A simplified model of the actuator is also developed.

Item Type:Article
Uncontrolled Keywords:Microactuators - Electrowetting - Capillary force
Subjects:Material Science > Nanostructured materials
ID Code:9524
Deposited By:SPI
Deposited On:21 Oct 2010 09:12
Last Modified:21 Oct 2010 09:12

Repository Staff Only: item control page