Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Paulo Orestes Formigoni"'
Autor:
Paulo Orestes Formigoni
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Neste trabalho são analisados os campos acústicos gerados por transdutores ultrassônicos planos e circulares, do tipo pistão plano, no modo pulso-eco, trabalhando como emissor e receptor de ondas, com freqüências de 1,6 MHz, 2,25 MHz e 5 MHz. A
Publikováno v:
Ultrasonics. 117
This work shows a novel ultrasonic viscosity measurement device with increased sensitivity. The measuring principle is based on the determination of the complex reflection coefficient of shear-waves at the solid-liquid interface. But the proposed app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31b4ba9acabb1f5880c8d726fb72f8dd
https://pubmed.ncbi.nlm.nih.gov/34364202
https://pubmed.ncbi.nlm.nih.gov/34364202
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 57:986-994
A computational method based on the impulse response and on the discrete representation computational concept is proposed for the determination of the echo responses from arbitrary-geometry targets. It is supposed that each point of the transducer ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::377b9c26b3fcb8478522f23727cd5365
https://doi.org/10.1109/tuffc.2010.1504
https://doi.org/10.1109/tuffc.2010.1504
Publikováno v:
Physics Procedia. 3(1):847-853
In this work the impulse response and the discrete representation method are applied to model the acoustic wave generated by ultrasonic transducers, its interaction with the defect, and the echoes received by the transducer. Several simulations are p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::726c8deec18184ea694db812ec22a3a6
Autor:
Paulo Orestes Formigoni
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Neste trabalho são analisados os campos acústicos gerados por transdutores ultrassônicos planos e circulares, do tipo pistão plano, no modo pulso-eco, trabalhando como emissor e receptor de ondas, com freqüências de 1,6 MHz, 2,25 MHz e 5 MHz. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f76d2c17f0259d43be0f01052a30a15e
