Acoustic electromechanical resonance filters

Fragoulis, DK; Avaritsiotis, JN

dc.contributor.author	Fragoulis, DK	en
dc.contributor.author	Avaritsiotis, JN	en
dc.date.accessioned	2014-03-01T01:17:25Z
dc.date.available	2014-03-01T01:17:25Z
dc.date.issued	2002	en
dc.identifier.issn	0924-4247	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14520
dc.subject	Acoustic filters	en
dc.subject	Electrodynamic transducers	en
dc.subject	Mechanical filters	en
dc.subject	Resonant filters	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.other	Acoustic fields	en
dc.subject.other	Capacitance	en
dc.subject.other	Electric currents	en
dc.subject.other	Electric fields	en
dc.subject.other	Magnetic fields	en
dc.subject.other	Natural frequencies	en
dc.subject.other	Permanent magnets	en
dc.subject.other	Resonators	en
dc.subject.other	Acoustic filter	en
dc.subject.other	Electrodynamic transducers	en
dc.subject.other	Mechanical resonator	en
dc.subject.other	Resonant filters	en
dc.subject.other	Resonant sound sensors	en
dc.subject.other	Electromechanical filters	en
dc.title	Acoustic electromechanical resonance filters	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0924-4247(02)00004-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0924-4247(02)00004-3	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	A mechanical resonator is used as the basis of an acoustically excited filter. The resonator, which is essentially a simple brass, reed-like structure, is located in a magnetic field generated by a permanent magnet. In the presence of a sound field, the mechanical resonator is excited and its motion is detected by measuring the induced voltage across its terminals. The frequency response, the sound pressure sensitivity and the directional properties of various resonant elements were measured so as demonstrate their ability to function as resonant sound sensors, The experimental results show that the proposed device may work very well as a frequency indicator since in the case of light damping it is able to detect small frequency deviations. Furthermore, a reduction of the device dimensions is discussed, in order to implement a resonant, microsystem that functions according to an applicable electrodynamic signal pickup scheme. (C) 2002 Elsevier Science 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/S0924-4247(02)00004-3	en
dc.identifier.isi	ISI:000176646700006	en
dc.identifier.volume	99	en
dc.identifier.issue	3	en
dc.identifier.spage	270	en
dc.identifier.epage	276	en