The Theory Analysis Of Micro Mercury Acceleration Switch

Advances in fabrication methods in micro electro mechanical systems(MEMS) have generated significant interest in the area of micro scale heat transfer and fluid flow. Mi-cro Electronic Mechanical System (MEMS) is booming in recent years and is com-monly known to have a promising prospect. It is the system that is manufactured by adopting the technique which is compatible with integrated circuit technique and the range of its size is from nanons to microns.This paper presented the movement analysis of micro-fluid in micro acceleration switch.which was based on the micro fluidic technology.This paper explained the elements of micro mercury acceleration switch and introduced the properties, including relevant knowledge is also showed as the basis of our research, such as the basic theory of solid-liquid interface, the solid-liquid contact angle measurement ,?surface tension and so on. In the basis of the feasibility analyses and potential advantages of micro mercury acceleration switch, a move function of mercury under different accelerations is explored theoretically, which is meaning to the whole study of mercury acceleration switch .The steady state between the border-flow and the mid-flow of the micro-fluid in the micro-switch was breaked off by the disturbance that lead the velocity difference.The viscous force and the inertia force and surface tension were interacted alternately. Iner-tia force drived micro-fluid flow, thus the mid-flow moves?and turn-on the switch.In chapter four, paper derive the mid-flow movement expressions based on the Na-vier- Stokes equation. .In the end the whole paper is summarized and the advice is given for further research.