System For Generation, Acquisition, And Processing Of Ultra-sound Signals [sistema Para Geração, Aquisição E Processamento De Sinais De Ultra-som]

dc.creatorAssef A.A.
dc.creatorGewehr P.M.
dc.creatorCosta E.T.
dc.creatorMaia J.M.
dc.creatorGamba H.R.
dc.creatorButton V.L.S.N.
dc.date2009
dc.date2015-06-26T13:35:56Z
dc.date2015-11-26T15:35:28Z
dc.date2015-06-26T13:35:56Z
dc.date2015-11-26T15:35:28Z
dc.date.accessioned2018-03-28T22:44:02Z
dc.date.available2018-03-28T22:44:02Z
dc.identifier
dc.identifierControle Y Automacao. , v. 20, n. 2, p. 145 - 155, 2009.
dc.identifier1031759
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-68549125308&partnerID=40&md5=2f71da9c7576cf8cc7a0a2f35db08d09
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/92376
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/92376
dc.identifier2-s2.0-68549125308
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1263226
dc.descriptionThis work describes a system for generation, acquisition and processing of ultrasonic signals to be used in material characterization. The system can be used in the pulse-echo and transmission-reception modes, with programmable sampling rate between 5 MHz and 80 MHz, internal triggering, repetition rate between 111 Hz and 333 Hz, pulse width of 100 ns and amplitude of 200 V. The reception circuits operate from 20 kHz to 30 MHz, with gain control from -40 dB to +40 dB. In order to evaluate the system performance, the propagation velocity and broadband attenuation of ultrasonic waves BUA were measured in acrylic and water. The results presented deviation below 1 %, showing good repeatability and demonstrating that the system can be used in non invasive and non destructive tests for different material characterization.
dc.description20
dc.description2
dc.description145
dc.description155
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dc.languagept
dc.publisher
dc.relationControle y Automacao
dc.rightsaberto
dc.sourceScopus
dc.titleSystem For Generation, Acquisition, And Processing Of Ultra-sound Signals [sistema Para Geração, Aquisição E Processamento De Sinais De Ultra-som]
dc.typeArtículos de revistas


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