A Novel Qcm Mass Sensing System Incorporated with A 3-Dof Mode Localized Coupled Resonator Stiffness Sensor

Yuan Wang, Chen Wang, Chun Zhao, Huafeng Liu, Delphine Cerica, Mathieu Baijot, Francois Dupont, Serguei Stoukatch, Michael Kraft

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper reports on a QCM (quartz crystal microbalance) mass sensor under atmospheric pressure that is combined with a 3-DOF micromachined coupled resonator operating in vacuum. With nanoparticles consecutively added on the QCM, the output signals from the QCM is then modified to produce electrostatic forces which are fed to a 3-DOF mode localized weakly coupled resonator. The 3-DOF coupled resonator hence utilizes the input electrostatic force as stiffness perturbations to perform the sensing operation. A comparison of three sensitivity characterization methods was carried out: resonance frequency shift, amplitude change and resonance vibration amplitude ratio. The results demonstrate that a 3-DOF mode localized coupled resonator incorporated with a QCM mass sensor has potential to be employed as a direct liquid contact biochemical transducer.

Original languageEnglish
Title of host publication2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII
PublisherIEEE
Pages1823-1826
Number of pages4
ISBN (Electronic)9781728120072
DOIs
Publication statusPublished - 22 Aug 2019
Event20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII - Berlin, Germany
Duration: 23 Jun 201927 Jun 2019

Publication series

Name2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII

Conference

Conference20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII
Country/TerritoryGermany
CityBerlin
Period23/06/1927/06/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Keywords

  • 3-DOF weakly coupled resonator
  • Mass sensing
  • MEMS resonant sensors
  • Mode localization
  • QCM

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