Výsledky vyhledávání - "R P B Costa-Félix"

Correlating ultrasonic pulse velocity and compression resistance of dry concretes at 54 kHz and 500 kHz

Autor: E W J Santos, R P B Costa-Félix, T C Dourado, F D G Santos, E S F Pinto

Publikováno v: Journal of Physics: Conference Series. 1826:012007

Nondestructive tests applying ultrasound in concrete is used for more than halfcentury. However, the difficulties in making transit time measurement in heterogeneous media have limited the spread use of these applications. The objective of this work

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9437307730b97c2ea82f7256f7c9bcfd
https://doi.org/10.1088/1742-6596/1826/1/012007

Zobrazit plný text záznamu

Evaluating of the ultrasonic transducers’ diameter on velocity measurement in nondestructive testing

Autor: T C Dourado, A V Alvarenga, S A Miqueleti, R P B Costa-Félix

Publikováno v: Journal of Physics: Conference Series. 1826:012012

Nondestructive test (NDT) has been proved to be a valuable support for industry, saving money and time. International standards provide some requirements for transducers’ diameter concerning the area section of the workpiece to be inspected. This p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::458ca1135630f2aa6881e3b433a1e3f9
https://doi.org/10.1088/1742-6596/1826/1/012012

Zobrazit plný text záznamu

Speed of sound as a function of temperature for ultrasonic propagation in soybean oil

Autor: André Victor Alvarenga, G C Morais, R P B Costa Félix, P A Oliveira, R. M. B. Silva

Publikováno v: Journal of Physics: Conference Series. 733:012040

Ultrasound has been used for characterization of liquid in several productive sectors and research. This work presents the studied about the behavior of the speed of sound in soybean oil with increasing temperature. The pulse echo technique allowed o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6428d23df9f22dfead6ddce60183f30b
https://doi.org/10.1088/1742-6596/733/1/012040

Zobrazit plný text záznamu

Experimental findings on the underwater measurements uncertainty of speed of sound and the alignment system

Autor: D P Oliveira, André Victor Alvarenga, R C Mayworm, T Q Santos, R M Souza, R P B Costa Félix

Publikováno v: Journal of Physics: Conference Series. 733:012053

Speed of sound is an important quantity to characterize reference materials for ultrasonic applications, for instance. The alignment between the transducer and the test body is an key activity in order to perform reliable and consistent measurement.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b8169afb36bd3829e7551aedf907762
https://doi.org/10.1088/1742-6596/733/1/012053

Zobrazit plný text záznamu

Akademický článek

Speed of sound as a function of temperature for ultrasonic propagation in soybean oil.

Autor: P A Oliveira, R M B Silva, G C Morais, A V Alvarenga, R P B Costa- Félix