Ultrasensitive mass sensing by utilization of mode-localization in self-excited coupled microcantilevers

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420195
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: University of Tsukuba
• Principal Investigator: yabuno hiroshi 筑波大学, システム情報系, 教授 (60241791)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 振動 / センサー / 質量計測 / マイクロカンチレバー

Outline of Final Research Achievements

In this research, a novel measurement method for small mass is established. In the general sing, the mass is attached to the oscillator and from the shift of the natural frequency, the mass is estimated. Recently, much more accuracy sensing is proposed by coupled cantilevers. In this study, by using such coupled cantilevers, a novel excitation method for the cantilevers. Hence, we propose a method by which the coupled oscillators is self-excited under the velocity feedback. The resonance can be produced even in large viscosity environments for the measurement of biological samples.

Free Research Field

機械力学