Time domain simulation and measurements for piezoelectric bimorphs

Kollias, AT; Avaritsiotis, JN

dc.contributor.author	Kollias, AT	en
dc.contributor.author	Avaritsiotis, JN	en
dc.date.accessioned	2014-03-01T01:21:39Z
dc.date.available	2014-03-01T01:21:39Z
dc.date.issued	2004	en
dc.identifier.issn	0924-4247	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16292
dc.subject	Auto-balancing bridge technique	en
dc.subject	Normal-mode expansion method	en
dc.subject	Piezoelectric bimorph	en
dc.subject	Time domain measurements	en
dc.subject	Time domain simulation	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.other	Cathode ray oscilloscopes	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electric impedance	en
dc.subject.other	Electric potential	en
dc.subject.other	Electromechanical devices	en
dc.subject.other	Finite element method	en
dc.subject.other	Natural frequencies	en
dc.subject.other	Sensors	en
dc.subject.other	Time domain analysis	en
dc.subject.other	Auto-balancing bridge technique	en
dc.subject.other	Normal-mode expansion method	en
dc.subject.other	Piezoelectric bimorph	en
dc.subject.other	Time domain measurements	en
dc.subject.other	Time domain simulation	en
dc.subject.other	Piezoelectric devices	en
dc.title	Time domain simulation and measurements for piezoelectric bimorphs	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.sna.2004.04.040	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.sna.2004.04.040	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The method of normal-mode expansion has been extended for time domain simulation of a piezoelectric bimorph, for arbitrary voltage excitations. An experimental method for time domain measurements is proposed and the logarithmic decrement technique is used for the estimation of the damping factor near the first resonance. The experimental setup consists of an auto-balancing bridge circuit and requires only an oscilloscope for measuring the input and output voltages. Resonant frequencies of the bimorph were also obtained by taking the FFT of the measured output voltage. For comparison purposes the method of normal-mode expansion in frequency domain was applied to obtain the driving point impedance of the bimorph near the first resonance. The value of the damping factor, computed through impedance measurements, was in agreement with the value computed using the logarithmic decrement technique. (C) 2004 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Sensors and Actuators, A: Physical	en
dc.identifier.doi	10.1016/j.sna.2004.04.040	en
dc.identifier.isi	ISI:000224141800015	en
dc.identifier.volume	116	en
dc.identifier.issue	2	en
dc.identifier.spage	293	en
dc.identifier.epage	303	en