基于声Casimir力的微动开关吸合控制
Pull-in control in microswitches using acoustic Casimir forces
摘要：
本文提出了一种模型微系统中卡西米尔声压的理论计算方法。与量子情况不同，声学卡西米尔压力可以根据声学噪声的频率带宽而被吸引或排斥。作为一个案例研究，一个自由度的简单集总系统中的声学谐振腔被认为是。我们表明，声场的频率带宽可以调谐，以增加现有的微动开关系统的稳定性，通过选择的力量的符号。引入声强和频带宽度作为微动开关的两个附加控制参数。
英文摘要：
In this paper we present a theoretical calculation of the acoustic Casimir pressure in a model micro system. Unlike the quantum case, the acoustic Casimir pressure can be made attractive or repulsive depending on the frequency bandwidth of the acoustic noise. As a case study, a one degree of freedom simple-lumped system in an acoustic resonant cavity is considered. We show that the frequency bandwidth of the acoustic field can be tuned to increase the stability in existing microswitch systems by selecting the sign of the force. The acoustic intensity and frequency bandwidth are introduced as two additional control parameters of the microswitch.
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