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首页> 外文期刊>Journal of Applied Nonlinear Dynamics >Synchronization and Stability of Surface Acoustic Wave (SAW) Coupled Phase Oscillators and Sensing Applications
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Synchronization and Stability of Surface Acoustic Wave (SAW) Coupled Phase Oscillators and Sensing Applications

机译:表面声波(SAW)耦合相位振荡器的同步和稳定性及其传感应用

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摘要

We present an analysis of phase dynamics of two coupled limit cycle oscillators where coupling is provided by a simple surface acoustic wave (SAW) delay line and the coupled oscillators are either SAW delayed or direct self-feedback type. Synchronization and stability analyses are carried out with primary motivation to explore whether coupling SAW device in synchronization mode could make better sensing platform compared to usual SAW feedback oscillator. Also, the parametric dependencies of the phase dynamics are analyzed to determine whether SAW-coupled oscillators could become stable chaotic code generators for secure communication. Both limit cycle and chaotic dynamics are seen to occur in different regions of parametric space. It is found that by proper tuning of system parameters sensitivity can be enhanced by several orders of magnitude resulting in possibility for making advanced SAW sensor system.
机译:我们介绍了两个耦合的极限循环振荡器的相位动力学分析,其中通过简单的表面声波(SAW)延迟线提供耦合,并且耦合的振荡器为SAW延迟型或直接自反馈型。进行同步和稳定性分析的主要动机是探索与常规SAW反馈振荡器相比,以同步模式耦合SAW器件是否可以提供更好的传感平台。此外,分析了相位动力学的参数依赖性,以确定SAW耦合振荡器是否可以成为稳定的混沌代码生成器以进行安全通信。可以看到极限循环和混沌动力学都发生在参数空间的不同区域。已经发现,通过适当调整系统参数,可以将灵敏度提高几个数量级,从而有可能制造出先进的声表面波传感器系统。

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