Micro-Gas Flow Induced Stochastic Resonance of a Nonlinear Nanomechanical Resonator
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Abstract
Fluidics is one of the most historic subjects that are well-established over centuries on the macroscopic scale. In recent years, fluid detection using a number of micro/nano scale devices has been achieved. However, the interaction of microfluid and solid devices on micro/nano-meter scale still lacks in-depth research. We demonstrate a practical nanomechanical detector for microfluidics via a string resonator with high Q-factor, suspended over a hole. This device is placed under a jet nozzle with several microns of diameter, and the interaction between the micro-gas flow and the resonator is observed by monitoring the variation of the fundamental frequency and the quality factor. Moreover, we manage to measure the fluctuations of the micro-gas flow on the nanomechanical resonator by means of stochastic resonance. This work manifests a potential platform for detecting dynamical fluid behaviors at microscopic scale for novel fluid physics.
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Shaochun Lin, Tian Tian, Peiran Yin, Pu Huang, Liang Zhang, Jiangfeng Du. Micro-Gas Flow Induced Stochastic Resonance of a Nonlinear Nanomechanical Resonator[J]. Chin. Phys. Lett., 2021, 38(2): 020502. DOI: 10.1088/0256-307X/38/2/020502
Shaochun Lin, Tian Tian, Peiran Yin, Pu Huang, Liang Zhang, Jiangfeng Du. Micro-Gas Flow Induced Stochastic Resonance of a Nonlinear Nanomechanical Resonator[J]. Chin. Phys. Lett., 2021, 38(2): 020502. DOI: 10.1088/0256-307X/38/2/020502
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Shaochun Lin, Tian Tian, Peiran Yin, Pu Huang, Liang Zhang, Jiangfeng Du. Micro-Gas Flow Induced Stochastic Resonance of a Nonlinear Nanomechanical Resonator[J]. Chin. Phys. Lett., 2021, 38(2): 020502. DOI: 10.1088/0256-307X/38/2/020502
Shaochun Lin, Tian Tian, Peiran Yin, Pu Huang, Liang Zhang, Jiangfeng Du. Micro-Gas Flow Induced Stochastic Resonance of a Nonlinear Nanomechanical Resonator[J]. Chin. Phys. Lett., 2021, 38(2): 020502. DOI: 10.1088/0256-307X/38/2/020502
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