With the development of technology, driving the power source of micro-machinery has become a bottleneck restricting the further development of MEMS devices. At present, the driving mode of the MEMS device is generally electrostatic drive, while the conventional power dragging generally cannot meet the required accuracy requirements.
For applications in the micropropulsion system for aerospace applications, MEMS devices have a higher power density than large propulsion systems, have good mobility and high reliability, and therefore have broad application prospects: (l) Size of microcavity (2) the shape of the microcavity; (3) the electrical conductivity of the material *4) the proportional relationship between the lengths of the sides; (5) the roughness of the cavity wall; (6) the size of the corners of the junction between the sides of the cavity; 7> Gravitational field around the microcavity; (8) Difference in temperature.
2 Casimir Forces in Common Microcavities The study of Casimir forces by people is mainly focused on the Casimir force in a two-conductivity, infinite parallel plane microcavity. Because from a theoretical point of view, this kind of structure has a series of advantages that other structures do not have: (1) Lorentz force invariance is maintained in both directions of three-dimensional space; (2) A three-dimensional M problem can be efficiently Simplify it into a one-dimensional question; (3) The pressure between two parallel planes stays the same; (4) There is no bending in the idealized plane, there are no additional problems caused by plane bending or plane crossing. .
For two parallel plate conductors of size LxL, the distance is */, and the direction of edge length is >r. v axis, */direction is t axis, as shown. The electromagnetic wave mode in the box is: Here is a positive integer or, the zero point in the box is the amount where £ is the speed of light. The zero energy distribution in c/a few common microcavity structures can be seen in Table 1. Zero-point energy in several microcavities under the condition of Table 10K Zero-energy energy in microcavity structure Two parallel plane structures (infinite, spacing a) LxL Zero-point cube structure (side length is ") spherical structure (radius is /*) cylindrical (radius is r, infinite) length is zero point on L and zero point energy in rectangular cavity can be changed according to cavity size In the positive and negative transitions, Ambjom's calculations are as shown.
3 Feasibility analysis In the structure shown, the light-colored part is a thin plane that can be moved up and down and left and right. The dark base is composed of two parts, the left side is a rectangular cavity, and the right side is a plane. In the working process, if the upper plane is first aligned with the plane of the base, then it first forms two parallel plane structures with the base and is moved downward by the Casim gravity. To avoid contact with the base, we can artificially set Set a minimum position. When the upper plane is at its lowest position, it is moved horizontally and aligned with the rectangular cavity portion on the left side of the base so that a rectangular cavity structure is formed between the upper plane and the base and is moved upward by Casimir repulsion. After a certain position, the upper plane is moved horizontally to the right, and the base is again in two parallel plane structures. In this process, the gravity work is zero, and Casimir forces do positive work regardless of rising or falling. When moving horizontally, Casimir forces are considered negligible when considering boundary conditions. In this way, the zero point energy can be extracted in the whole process.
4 Conclusions For zero-point energy and Casim force, the author analyzed it from several different structures, and it can be recognized that at small intervals, it will play a crucial role in the normal operation of the entire organization. For the micro-power system, we can fully use zero energy as its driving energy, which can be realized according to the different nature of the Casimir force in the non-fourth microcavity and the great effect it shows at the small pitch. , but at the same time, we also realize that for zero points can be (Vsimir force, although theoretically they have made some progress in the study, but because its range of effect size is too small, which requires the device size is also very small, leading to There is a great deal of difficulty in manufacturing and testing, so the application of this energy is still in its infancy. Its enormous potential has not yet been fully realized. This requires us to be in the right direction.
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