Dynamic analysis of a new piezoelectric flextensional actuator using the J1-J4 optical interferometric method

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMarçal, Luiz A. P.
dc.creatorLeão, José V. F.
dc.creatorNader, Gilder
dc.creatorSilva, Emílio C. N.
dc.creatorHiguti, Ricardo T.
dc.creatorKitano, Cláudio
dc.date2014-05-27T11:21:46Z
dc.date2016-10-25T18:21:43Z
dc.date2014-05-27T11:21:46Z
dc.date2016-10-25T18:21:43Z
dc.date2005-12-01
dc.date.accessioned2017-04-06T01:16:56Z
dc.date.available2017-04-06T01:16:56Z
dc.identifierInternational Congress on Noise Control Engineering 2005, INTERNOISE 2005, v. 3, p. 1993-2002.
dc.identifierhttp://hdl.handle.net/11449/68676
dc.identifierhttp://acervodigital.unesp.br/handle/11449/68676
dc.identifier2-s2.0-84873820254
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/889999
dc.descriptionPiezoelectric actuators are widely used in positioning systems which demand high resolution such as scanning microscopy, fast mirror scanners, vibration cancellation, cell manipulation, etc. In this work a piezoelectric flextensional actuator (PFA), designed with the topology optimization method, is experimentally characterized by the measurement of its nanometric displacements using a Michelson interferometer. Because this detection process is non-linear, adequate techniques must be applied to obtain a linear relationship between an output electrical signal and the induced optical phase shift. Ideally, the bias phase shift in the interferometer should remain constant, but in practice it suffers from fading. The J1-J4 spectral analysis method provides a linear and direct measurement of dynamic phase shift in a no-feedback and no-phase bias optical homodyne interferometer. PFA application such as micromanipulation in biotechnology demands fast and precise movements. So, in order to operate with arbitrary control signals the PFA must have frequency bandwidth of several kHz. However as the natural frequencies of the PFA are low, unwanted dynamics of the structure are often a problem, especially for scanning motion, but also if trajectories have to be followed with high velocities, because of the tracking error phenomenon. So the PFA must be designed in such a manner that the first mechanical resonance occurs far beyond this band. Thus it is important to know all the PFA resonance frequencies. In this work the linearity and frequency response of the PFA are evaluated up to 50 kHz using optical interferometry and the J1-J4 method.
dc.languageeng
dc.relationInternational Congress on Noise Control Engineering 2005, INTERNOISE 2005
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCell manipulation
dc.subjectControl signal
dc.subjectDetection process
dc.subjectDirect measurement
dc.subjectDynamic phase
dc.subjectElectrical signal
dc.subjectFlextensional actuator
dc.subjectFrequency band width
dc.subjectHigh resolution
dc.subjectHigh velocity
dc.subjectHomodyne interferometers
dc.subjectLinear relationships
dc.subjectMechanical resonance
dc.subjectMicro manipulation
dc.subjectMirror scanner
dc.subjectNanometric displacements
dc.subjectOptical interferometric method
dc.subjectOptical interferometry
dc.subjectOptical phase shifts
dc.subjectPositioning system
dc.subjectResonance frequencies
dc.subjectScanning microscopy
dc.subjectSpectral analysis method
dc.subjectTopology Optimization Method
dc.subjectTracking errors
dc.subjectVibration cancellation
dc.subjectFeedback
dc.subjectFrequency response
dc.subjectInterferometry
dc.subjectMichelson interferometers
dc.subjectMolecular biology
dc.subjectNatural frequencies
dc.subjectPhase shift
dc.subjectPhase shifters
dc.subjectPiezoelectricity
dc.subjectSpectrum analysis
dc.subjectPiezoelectric actuators
dc.titleDynamic analysis of a new piezoelectric flextensional actuator using the J1-J4 optical interferometric method
dc.typeOtro


Este ítem pertenece a la siguiente institución