English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/25045
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 9 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Decrease of the resonance bandwidth of micromechanical oscillators by phase control of the driving force

AutorTamayo de Miguel, Francisco Javier ; Lechuga, Laura M.
Palabras claveMicromechanical resonators
Vibration control
Oscillators
Fecha de publicación28-abr-2003
EditorAmerican Institute of Physics
CitaciónApplied Physics Letters 82, 2919 (2003)
ResumenA method for controlling the amplitude response of micromechanical oscillators is presented. The micromechanical oscillator is driven by two forces acting both in phase, a fixed sinusoidal force and a feedback force whose amplitude depends on the phase shift. This dependence exhibits a pronounced maximum when the phase shift is 90°, i.e., at the resonant frequency. Experiments performed with a microcantilever prove that this class of active control decreases the bandwidth of the amplitude response about two orders of magnitude. The noise of the microcantilever, mainly of a thermal nature, is not increased at resonance, and it is moderately increased at both sides of the amplitude peak. Moreover, the noise can be tuned by adjusting the ratio between the two driving forces.
Versión del editorhttp://dx.doi.org/10.1063/1.1571228
URIhttp://hdl.handle.net/10261/25045
DOI10.1063/1.1571228
ISSN0003-6951
Aparece en las colecciones: (IMN-CNM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Tamayo, J. et al Appl.Phys.Lett._82_2003.pdf53,76 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.