Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Marc, Lethiecq"'
Autor:
Michaël Lematre, Marc Lethiecq
Publikováno v:
Acoustics, Vol 4, Iss 4, Pp 996-1012 (2022)
This paper presents the possibility of enhancement of the generation and detection of poorly energetic acoustic-guided waves in multilayered structures using a new design for a V(z) transducer. By defining a modified V(z) transducer composed of segme
Externí odkaz:
https://doaj.org/article/2efddc765a5e46ca8828371e1c24631f
Publikováno v:
Materials, Vol 14, Iss 9, p 2269 (2021)
Ultrasonic transducers performance can be seriously deteriorated by loss of adhesion between some constitutive elements such as the active element, the backing, or the matching layer. In the present work, the influence of bonding delaminations on the
Externí odkaz:
https://doaj.org/article/7f5b450345d941d18d67862480563b7b
Publikováno v:
Materials Today: Proceedings. 48:454-460
Ultrasound is a precise active processing technique in the generation and application of nanomaterials. A number of methodologies are in practice to generate the metallic nanoparticles such as chemical synthesis, solvothermal process and electrochemi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af3ed38ec112ed7c32efeea9f2448eba
https://doi.org/10.1016/j.matpr.2021.01.693
https://doi.org/10.1016/j.matpr.2021.01.693
Autor:
Marc Lethiecq, Naoufal Saadaoui, Van Thien Nguyen, Jean Francois Saillant, Guy Feuillard, L. P. Tran Huu Hue
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 68:3608-3615
Symmetric reflector ultrasonic transducers (SRUTs) are a new type of ultrasonic transducer that take advantage of the ultrasonic wave emitted on the rear face of the active element. In this work, the electroacoustic modeling and characterization of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82cff48b20906782140dd5291ca17046
https://doi.org/10.1109/tuffc.2021.3101124
https://doi.org/10.1109/tuffc.2021.3101124
Publikováno v:
2022 IEEE International Ultrasonics Symposium (IUS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::784d1b12033a4d92248bd2ce50d372fd
https://doi.org/10.1109/ius54386.2022.9957997
https://doi.org/10.1109/ius54386.2022.9957997
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2021, 68 (5), pp.1819-1827. ⟨10.1109/TUFFC.2020.3047944⟩
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2021, 68 (5), pp.1819-1827. ⟨10.1109/TUFFC.2020.3047944⟩
The transducer is an essential part of all ultrasonic systems used for applications such as medical diagnostics, therapy, nondestructive evaluation, and cleaning because its health condition is vital to their proper operation. Defects within the acti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a1c38e1831ae7d0e4797551ac99bd57
https://doi.org/10.1109/tuffc.2020.3047944
https://doi.org/10.1109/tuffc.2020.3047944
Publikováno v:
Journal of Sound and Vibration. :117843
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9a9908be30bea44f09d5e1fa25431bb
https://doi.org/10.1016/j.jsv.2023.117843
https://doi.org/10.1016/j.jsv.2023.117843
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2020, 67 (8), pp.1715-1724. ⟨10.1109/tuffc.2020.2979395⟩
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2020, 67 (8), pp.1715-1724. ⟨10.1109/tuffc.2020.2979395⟩
Barium titanate (BaTiO3) is increasingly studied to replace lead-based piezoelectric materials, such as those which belong to the lead zirconate titanate (PZT) family, due to lead toxicity. In many applications, such as Tonpilz transducers, piezoelec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bafe81c321fcd8def5cbe63006e9a923
https://doi.org/10.1109/tuffc.2020.2979395
https://doi.org/10.1109/tuffc.2020.2979395
Autor:
Danjela Kuscer, Tina Bakaric, Julien Bustillo, Marc Lethiecq, Silvo Drnovšek, Franck Levassort
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2020, 67 (8), pp.1656-1666. ⟨10.1109/TUFFC.2020.2983257⟩
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2020, 67 (8), pp.1656-1666. ⟨10.1109/TUFFC.2020.2983257⟩
For transducer design, it is essential to know the acoustic properties of the materials in their operating conditions. At frequencies over 15 MHz, standard methods are not well adapted because layers are very thin and backings have very high attenuat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::117018876c43a0e9bcace84ea4df1d71
https://doi.org/10.1109/tuffc.2020.2983257
https://doi.org/10.1109/tuffc.2020.2983257
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2021, 514, pp.116438. ⟨10.1016/j.jsv.2021.116438⟩
Journal of Sound and Vibration, Elsevier, 2021, 514, pp.116438. ⟨10.1016/j.jsv.2021.116438⟩
In this paper, the superposition method is extended to obtain analytical solutions for the coupled vibration of a piezoelectric slender bar in a configuration corresponding to a typical ultrasonic linear array transducer element. The problem can be d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7b2e06b09063095cc1e02702e8caa5c
https://hal.archives-ouvertes.fr/hal-03379804
https://hal.archives-ouvertes.fr/hal-03379804
