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Note: Signal amplification and filtering with a tristable stochastic resonance cantilever

机译:注意:使用三稳态随机共振悬臂进行信号放大和滤波

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This Note reports a tristable cantilever that exploits stochastic resonance (SR) phenomenon for a study of signal amplification and filtering. The tristable device system combines the benefits of bistable system (wide interwell spacing) and monostable system (smooth motion in potential). The prototype tristable cantilever exhibits 42 times root-mean-square amplitude, 35.86 dB power gain, advance of 15 dB signal-to-noise ratio, and twice fidelity at around 7.6 Hz as compared to the input signal. In a wide operating bandwidth [5.5 Hz, 8.2 Hz], the tristable SR cantilever outperforms the traditional monostable cantilever and bistable SR cantilever in these characteristics.
机译:本说明报告了一种三稳态悬臂,它利用随机共振(SR)现象来研究信号放大和滤波。三稳态设备系统结合了双稳态系统(井间间距大)和单稳态系统(势能平稳)的优点。与输入信号相比,原型三稳态悬臂梁具有42倍的均方根振幅,35.86 dB的功率增益,15 dB的信噪比提升和7.6 Hz左右的两倍保真度。在较宽的工作带宽[5.5 Hz,8.2 Hz]中,三稳态SR悬臂在这些特性方面优于传统的单稳态悬臂和双稳态SR悬臂。

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