Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Trym Eggen"'
Publikováno v:
Proceedings-IEEE Ultrasonics Symposium
Understanding the nonlinearity in ultrasound probes is important for tissue harmonic imaging, as 2nd harmonic components transmitted from the probe may interfere with harmonics from the tissue and degrade the image quality. The aim of this paper was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d0a3c1b092261ecd81b0fe1a612567c
https://hdl.handle.net/11250/3009998
https://hdl.handle.net/11250/3009998
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Tissue harmonic imaging is often the preferred ultrasound imaging modality due to its ability to suppress reverberations. The method requires good control of the transmit stage of the ultrasound scanner, as harmonics in the transmitted ultrasound pul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9aeb6764d3bbba80f324838830578ea
https://hdl.handle.net/11250/2996486
https://hdl.handle.net/11250/2996486
Publikováno v:
Soldering & Surface Mount Technology. 30:100-105
Purpose This paper aims to demonstrate low-temperature bonding for piezoelectric materials at temperatures well below the relevant Curie temperatures so as to avoid depolarization of the piezoelectric material during bonding. Design/methodology/appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a795e8be5f0fe849b4af4833dfaeb3c
https://doi.org/10.1108/ssmt-10-2017-0034
https://doi.org/10.1108/ssmt-10-2017-0034
Publikováno v:
IEEE Transactions on Biomedical Circuits and Systems. 11:234-243
Fully digitized 2D ultrasound transducer arrays require one ADC per channel with a beamforming architecture consuming low power. We give design considerations for per-channel digitization and beamforming, and present the design and measurements of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3bd18855eb48843d4acdca0782daef7
https://doi.org/10.1109/tbcas.2016.2580462
https://doi.org/10.1109/tbcas.2016.2580462
Autor:
Lars Hoff, Frederic Lanteri, Trym Eggen, Alessandro Stuart Savoia, Barbara Mauti, Tung Manh, Jean-Francois Gelly
Publikováno v:
2018 IEEE International Ultrasonics Symposium (IUS).
Dual-frequency ultrasonic transducers, capable of operating over distinct frequency bands, may be conveniently used in different applications such as harmonic imaging. This paper presents the design and fabrication of a dual-frequency hybrid transduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a53374dbac70f85a57ff720202d1b94
https://doi.org/10.1109/ultsym.2018.8580125
https://doi.org/10.1109/ultsym.2018.8580125
Publikováno v:
Proceedings-IEEE Ultrasonics Symposium
Tissue harmonic imaging is often the preferred ultrasound imaging modality due to its ability to suppress reverberations. The method requires good control on the transmit stage of the ultrasound scanner, as harmonics in the transmitted ultrasound pul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03af520f9292c8152f11cb41f53e661c
https://doi.org/10.1109/ultsym.2018.8579819
https://doi.org/10.1109/ultsym.2018.8579819
Autor:
Jean-Francois Gelly, Tung Manh, Frederic Lanteri, Lars Hoff, Trym Eggen, Knut E. Aasmundtveit, Tonni Franke Johansen, Hoang-Vu Nguyen, Duy Le-Anh
Publikováno v:
2016 IEEE International Ultrasonics Symposium (IUS).
This paper presents a bonding technique based on gold-tin (Au-Sn) intermetallics to bond an active layer to a backing material in a piezoelectric ultrasonic transducer stack. The bonding process was performed at 310°C. The temperature ramping rate w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c666439555ebcf51a9e331d518434df0
https://doi.org/10.1109/ultsym.2016.7728602
https://doi.org/10.1109/ultsym.2016.7728602
Publikováno v:
2016 6th Electronic System-Integration Technology Conference (ESTC).
Au-Sn Solid-Liquid Interdiffusion (SLID) bonding of a standard piezoelectric material (PZT) to tungsten carbide (WC) has been investigated. Both materials have a bare bonding surface with an absolute roughness up to 1.5 µm. Bonded samples were chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7af3c16a2ae2917b60ed87417ee7ff2
https://doi.org/10.1109/estc.2016.7764691
https://doi.org/10.1109/estc.2016.7764691
Autor:
Lars Hoff, Tung Manh, Frederic Lanteri, Trym Eggen, Tonni Franke Johansen, Jean-Francois Gelly
Publikováno v:
2016 IEEE International Ultrasonics Symposium (IUS).
This paper studies a design concept of a dual frequency ultrasonic transducer, in which we use different technologies for each band. A hybrid structure consisting of a piezoelectric stack used for the lower frequency (LF) band and a Capacitive Microm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0febefe69dd777cb399490ed25af26ef
https://doi.org/10.1109/ultsym.2016.7728599
https://doi.org/10.1109/ultsym.2016.7728599
Publikováno v:
2014 IEEE 64th Electronic Components and Technology Conference (ECTC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d03913abfc9d570d047c0f9b4951fea4
https://doi.org/10.1109/ectc.2014.6897330
https://doi.org/10.1109/ectc.2014.6897330