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Self-excited coupled-microcantilevers for mass sensing
Author(s) -
Daichi Endo,
Hiroshi Yabuno,
Keiichi Higashino,
Yasuyuki Yamamoto,
Sohei Matsumoto
Publication year - 2015
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.4921082
Subject(s) - excited state , oscillation (cell signaling) , measure (data warehouse) , amplitude , physics , computational physics , atomic physics , chemistry , optics , computer science , data mining , biochemistry
This paper reports ultrasensitive mass detection based on the relative change in the amplitude ratio of the first mode oscillation using self-excited coupled microcantilevers. The method proposed and demonstrated using the macrocantilevers in the previous study can measure eigenstate shifts caused by objects with high accuracy without being affected by the viscous damping effect of measurement environments. In this study, moving towards the use of this method for small mass measurements, we established the self-excited coupled microcantilevers and we have achieved in measurements of very small mass (about 1 ng) with 1% order of error

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