Centre National De La Recherche Scientifique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Ecole Nationale Travaux Publics De L'etat

Institut National Sciences Appliquees De Lyon

Regis Dufour

Sebastien Hentz

Claude-Henri Lamarque

Sebastien Baguet

Van Nghi Nguyen

A method is provided for detecting a perturbation with respect to an initial state, of a device including at least one resonant mechanical element exhibiting a physical parameter sensitive to a perturbation such that the said perturbation modifies the resonance frequency of the said resonant mechanical element. A device is provided for detecting a perturbation by hysteretic cycle having at least one electromechanical resonator with nonlinear behavior and means for actuation and detection of the reception signal via a transducer so as to analyze the response signal implementing the method. A mass sensor and a mass spectrometer using the device are also provided.

Method for detecting a perturbation by hysteretic cycle using a nonlinear electromechanical resonator and device using the method

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Lyons, France

Regis Dufour