Fig. 8
From: A micro-dispenser for long-term storage and controlled release of liquids
The analytical treatment of the micro-dispenser actuated by centrifugation. a Schematic of the micro-dispenser inserted in a rotating frame together with its actuation mechanism. The inset shows a section through the membrane and the tube. b The membrane un-stretched. c A tube (of outer radius R) is sheathed in the stretched membrane, providing a hermetic sealing. d At given speed, the membrane is stretched to inner radius Ri > R, and liquid is released. e Example results from simulations, showing deformed membrane and color-coded radial pressure for an opening membrane of Ri = 4.8 mm, t = 1.6 mm on a tube with R = 3.3 mm, Case 2
