Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Flavio Buiochi"'
Publikováno v:
Dyna, Vol 79, Iss 176, Pp 4-9 (2012)
La determinación del coeficiente de reflexión de ondas transversales ultrasónicas en la interfaz sólido-líquido es una técnica que ha sido usada para la medición de las propiedades viscoelásticas de líquidos. Una característica interesante
Externí odkaz:
https://doaj.org/article/97c1816ef90e47318d540c4bed226bb6
Autor:
Carlos A. B. Reyna, Alberto L. Duran, Luiz O. V. Pereira, Marcos S. G. Tsuzuki, Ediguer E. Franco, Flavio Buiochi
Publikováno v:
2021 IEEE UFFC Latin America Ultrasonics Symposium (LAUS).
Publikováno v:
2021 IEEE UFFC Latin America Ultrasonics Symposium (LAUS).
Publikováno v:
Eng, Vol 4, Iss 4, Pp 2582-2600 (2023)
The measurement of acoustic fields generated by ultrasonic transducers is important for determining the focal length, lateral resolution, and amplitudes of the lateral and grating lobes. The acoustic field is commonly characterized by a set of scans
Externí odkaz:
https://doaj.org/article/d9d71e0d65754c6a8191cc634a94fe32
Publikováno v:
Sensors, Vol 24, Iss 13, p 4061 (2024)
This study introduces an innovative approach to the layered model, emphasizing the physical–chemical characterization of miscible liquid systems through ultrasonic techniques, with a specific focus on the water–ethanol system used in pharmaceutic
Externí odkaz:
https://doaj.org/article/0c148b7af0ca49068f671cb4c86302ce
Publikováno v:
Proceedings of the Interntional Congress on Ultrasonics.
Publikováno v:
Sensors, Vol 22, Iss 19, p 7236 (2022)
This work proposes the slope of the phase spectrum as a signal processing parameter for the ultrasonic monitoring of the water content of water-in-crude oil emulsions. Experimental measurements, with water volume fractions from 0 to 0.48 and test tem
Externí odkaz:
https://doaj.org/article/7606dad1d28d4d40a68e4c36321842bf
Autor:
Carlos A. B. Reyna, Ediguer E. Franco, Alberto L. Durán, Luiz O. V. Pereira, Marcos S. G. Tsuzuki, Flávio Buiochi
Publikováno v:
Machines, Vol 9, Iss 12, p 335 (2021)
This work deals with a transmission-reception ultrasonic technique for the real-time estimation of the water content in water-in-crude oil emulsions. The working principle is the measurement of the propagation velocity, using two in-house manufacture
Externí odkaz:
https://doaj.org/article/ad68619da8b54d2da64ec87adbd91a11
Autor:
Alberto L. Durán, Ediguer E. Franco, Carlos A. B. Reyna, Nicolás Pérez, Marcos S. G. Tsuzuki, Flávio Buiochi
Publikováno v:
Sensors, Vol 21, Iss 15, p 5088 (2021)
This work shows the application of an ultrasonic multiple-scattering sensor for monitoring water-in-petroleum emulsions. The sensor consists of a commercial ultrasonic transducer with an array of cylindrical scatterers placed in the near field. The s
Externí odkaz:
https://doaj.org/article/072e309f5ed342eab0948188845b5520
Autor:
Estevão Patricio Rodrigues, Timoteo Francisco de Oliveira, Marcelo Yassunori Matuda, Flávio Buiochi
Publikováno v:
Sensors, Vol 21, Iss 10, p 3501 (2021)
Most works that address 2-D array ultrasonic transducers for underwater applications are about the geometry aspects of the array and beamforming techniques to make 3-D images. They look for techniques to reduce the number of elements from wide apertu
Externí odkaz:
https://doaj.org/article/9321029a48be4be6bdb20802108a8e25