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The use of vibration mode localization in arrays of mechanically-coupled, nearly identical cantilevers has been studied for ultra-sensitive mass detection and analyte identification. The effects of geometrical design of the coupling overhang, cantilever length, as well as the number of identical coupled cantilevers on the magnitude enhancement with a small mass perturbation were previously reported...
The use of vibration mode localization in arrays of mechanically-coupled, nearly identical beam-shaped resonators has been studied for ultra-sensitive mass detection. In this paper, for the first time, we thoroughly summarized and compared different sensitivities of various cantilever structures on mass sensing. Meanwhile, from our analytical results, the expression of the highest sensitivity has...
The frequency multiplication in a simplified two-cantilever system was characterized and its mass sensing capability was demonstrated. Two microcantilevers similar in cross section but different in length, with primary frequencies of 177.38 kHz [$\omega _{1 }$ of (long) low-frequency cantilever] and 351.66 kHz [$\omega _{2 }$ of (short) high-frequency cantilever], are connected micromechanically...
The use of vibration mode localization in arrays of mechanically-coupled, nearly identical beam-shaped resonators has been studied for ultra-sensitive mass detection and analyte identification. Our recent work (NEMS 2012) focused on enhancing the amount of amplitude change due to vibration mode localization with a beam shaped 3-resonator array. The preliminarily results were discussed from view point...
The use of vibration mode localization in arrays of micro-mechanically coupled, nearly identical beam-shaped resonators has been studied for ultrasensitive mass detection and analyte identification. Eigenstate shifts that are 3 to 4 times (compared to single resonator), and orders (compared to resonator array) of magnitude greater than corresponding shifts in resonant frequency for an induced mass...
Frequency enhancement with decreased fluctuation is available by using micromechanically-coupled synchronized resonator system. The system consists of two geometrically designed and empirically fabricated singly-clamped beam-shaped cantilevers (19.5 ??m and 30 ??m long ??5 ??m wide ??100 nm thick). Two cantilevers, with resonant frequencies of 295.72 kHz (detecting) and 145.01 kHz (sensing) respectively,...
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