Mass and position determination of attached particles on cantilever based mass sensors | Zendy

Søren Dohn | Zendy; Winnie Edith Svendsen | Zendy; Anja Boisen | Zendy; Ole Hansen | Zendy

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Mass and position determination of attached particles on cantilever based mass sensors

Author(s) -

Søren Dohn,

Winnie Edith Svendsen,

Anja Boisen,

Ole Hansen

Publication year - 2007

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.2804074

Subject(s) - cantilever , position (finance) , microscale chemistry , materials science , particle (ecology) , bending , physics , composite material , oceanography , mathematics education , mathematics , finance , economics , geology

An analytical expression relating mass and position of a particle attached on a cantilever to the resulting change in cantilever resonant frequency is derived. Theoretically, the position and mass of the attached particle can be deduced by combining measured resonant frequencies of several bending modes. This finding is verified experimentally using a microscale cantilever with and without an attached gold bead. The resonant frequencies of several bending modes are measured as a function of the bead position. The bead mass and position calculated from the measured resonant frequencies are in good agreement with the expected mass and the position measured.

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