Zobrazeno 1 - 10
of 191
pro vyhledávání: '"piezoceramic transducers"'
Autor:
Isabel Giron Camerini, Luis Paulo Brasil de Souza, Paula Medeiros Proença Gouvea, Arthur Martins Barbosa Braga
Publikováno v:
Sensors, Vol 24, Iss 17, p 5561 (2024)
Acoustic waves can be used for wireless telemetry as an alternative to situations where electrical or optical penetrators are unsuitable. However, the response of the ultrasonic transducer can be greatly affected by temperature variations, mechanical
Externí odkaz:
https://doaj.org/article/863d1eeacc924df7aefcbaa7edefabcb
Publikováno v:
Applied Sciences, Vol 14, Iss 2, p 641 (2024)
Prestressed steel strands in prestressed structures offset or reduce the tensile stress caused by external loads, making them the primary load-bearing components. Great concerns have been raised about prestress monitoring due to the growing use of st
Externí odkaz:
https://doaj.org/article/0f6ad3b0d7b742cf9d653506b7a284d7
Akademický článek
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Akademický článek
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Akademický článek
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Publikováno v:
IEEE Access, Vol 6, Pp 40212-40220 (2018)
Bolted joint are among the key components that enable the robust assembly of a wide variety of structures. However, due to wear and tear over time, bolted joint may loosen, and if not detected in its early stages, can lead to devastating results. A m
Externí odkaz:
https://doaj.org/article/1489b4b43c5e4a93ac6e2addda36bd9d
Autor:
Jianqun Wang, Zhe Fan
Publikováno v:
Sensors, Vol 20, Iss 18, p 5398 (2020)
Precast concrete segmental bridges (PCSBs) have been widely used in bridge engineering due to their numerous competitive advantages. The structural behavior and health status of PCSBs largely depend on the performance of the joint between the assembl
Externí odkaz:
https://doaj.org/article/48973c4d80c5471283933195f8e05614
Publikováno v:
Sensors, Vol 20, Iss 3, p 868 (2020)
Alternative wireless data communication systems are a necessity in industries that operate in harsh environments such as the oil and gas industry. Ultrasonic guided wave propagation through solid metallic structures, such as metal barriers, rods, and
Externí odkaz:
https://doaj.org/article/cc60175f5ae14f83987bb82731e2c6de
Publikováno v:
Pribory i Metody Izmerenij, Vol 0, Iss 2, Pp 88-94 (2015)
The piezomaterial used in cylindrical piezoceramic transducers vibrations requiring high precision displacements indicates that accuracy depends on design and technological factors. The analyzed criteria have made possible to choose the piezomaterial
Externí odkaz:
https://doaj.org/article/e5a77495a2f04102bc69dc734ccc8edc
Publikováno v:
Sensors, Vol 19, Iss 9, p 2185 (2019)
During the propagation of ultrasound in a polycrystalline material, ultrasonic energy losses due to the scattering at the boundaries between grains is usually described by the ultrasonic energy diffusion equation, and the boundaries of the grains in
Externí odkaz:
https://doaj.org/article/ca4e4de7ef104748b4ad0d296eb5e453