Position and mass determination of multiple particles using cantilever based mass sensors

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Resonant microcantilevers are highly sensitive to added masses and have the potential to be used as mass-spectrometers. However, making the detection of individual added masses quantitative requires the position determination for each added mass. We derive expressions relating the position and mass of several added particles to the resonant frequencies of a cantilever, and an identification procedure valid for particles with different masses is proposed. The identification procedure is tested by calculating positions and mass of multiple microparticles with similar mass positioned on individual microcantilevers. Excellent agreement is observed between calculated and measured positions and calculated and theoretical masses.
Original languageEnglish
JournalApplied Physics Letters
Publication date2010
Volume97
Journal number4
ISSN0003-6951
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 13

Keywords

  • cantilevers, mass spectrometers, microsensors, particle detectors
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