Search Results - "Certon, D"

Broad bandwidth air-coupled micromachined ultrasonic transducers for gas sensing by Shanmugam, P., Iglesias, L., Michaud, J.F., Alquier, D., Colin, L., Dufour, I., Certon, D.

“…•Air-coupled CMUTs with FBW > 100% and tunable working frequencies (500 kHz - 2 MHz).•A new approach in the field of gas sensing based on the dectection of…”
Get full text

Investigation of ultrasonic absorption in the MHz frequency range by silicon substrates with a built-in porous silicon layer by Lascaud, J., Defforge, T., Gautier, G., Certon, D.

“…•Progress in ultrasound imaging leads to the development of transducers on silicon.•The axial resolution of these transducers is impacted by the substrate…”
Get full text

A finite difference model For cMUT devices by Certon, D., Teston, F., Patat, F.

“…A finite difference method was implemented to simulate capacitive micromachined ultrasonic transducers (cMUTs) and compared to models described in the…”
Get full text

Modeling of piezoelectric transducers with combined pseudospectral and finite-difference methods by Filoux, E., Callé, S., Certon, D., Lethiecq, M., Levassort, F.

“…A new hybrid finite-difference (FD) and pseudospectral (PS) method adapted to the modeling of piezoelectric transducers (PZTs) is presented. The time-dependent…”
Get full text

Low frequency cMUT technology: Application to measurement of brain movement and assessment of bone quality by Certon, D, Ternifi, R, Boulme, A, Legros, M, Minonzio, J.-G, Talmant, M, Patat, F, Remenieras, J.-P

“…Abstract Following recent advances in medical ultrasound imaging methods almost all human tissues can currently be examined. There are, however, two…”
Get full text

A matrix method for modeling electroelastic moduli of 0-3 piezo-composites by Levassort, F., Lethiecq, M., Certon, D., Patat, F.

“…A model is proposed to predict the electroelastic moduli of 0-3 connectivity piezo-composites from which parameters such as longitudinal wave velocity and…”
Get full text

Two-dimensional electroacoustic model of transducer array based on 1-3 piezocomposite materials by Certon, D., Guyonvarch, J., Ferin, G., Patat, F.

“…An analytical model is presented to achieve simultaneous prediction of the elementary electroacoustic response and directivity pattern of a one-dimensional…”
Get full text

Investigation of cross-coupling in 1-3 piezocomposite arrays by Certon, D., Felix, N., Lacaze, E., Teston, F., Patat, F.

“…Plate waves inside the piezoelectric layer are much involved in the element cross-coupling in transducer arrays for medical imaging. In this work, such waves…”
Get full text

Influence of acousto-optic interactions on the determination of the diffracted field by an array obtained from displacement measurements by Certon, D, Ferin, G, Bou Matar, O, Guyonvarch, J, Remenieras, J.P, Patat, F

“…This paper deals with the influence of acousto-optic interactions on the displacement measurements performed over transducer array and their effects on the…”
Get full text

Imagerie ultrasonore de contraste avec transducteurs capacitifs micro-usinés by Bouakaz, A, Ferin, G, Certon, D, Basset, O

“…Résumé Dans cette étude, nous proposons d’exploiter les qualités de la technologie des transducteurs capacitifs micro-usinés (CMUT) et les avantages qu’offrent…”
Get full text

A multiscale model for array of capacitive micromachined ultrasonic transducers by Meynier, Cyril, Teston, Franck, Certon, Dominique

“…A model is developed for studying the acoustic behavior of a cMUT array. This model is based on separate calculations of the terms describing the behavior of a…”
Get full text

Lateral resonances in 1–3 piezoelectric periodic composite: Modeling and experimental results by Certon, Dominique, Patat, Frédéric, Levassort, Franck, Feuillard, Guy, Karlsson, Brynjar

“…The objective of this work is to provide an accurate model of the lateral resonance modes in 1–3 piezoelectric composite materials. These materials are widely…”
Get full text

O024 - FLASH Modalities Track (Oral Presentations) FEASIBILITY STUDY OF TRANSIENT IONOACOUSTICS-BASED PROTON BEAM MONITORING FOR SMALL ANIMAL IRRADIATION AT CYCLOTRON-BASED CLINICAL FACILITIES UNDER FLASH CONDITIONS by Lascaud, J., Pinto, M., Dash, P., Wieser, H.-P., Rouffaud, R., Certon, D., Sitarz, M., Poulsen, P., Parodi, K.

Get full text

FLASH Modalities Track (Oral Presentations) FEASIBILITY STUDY OF TRANSIENT IONOACOUSTICS-BASED PROTON BEAM MONITORING FOR SMALL ANIMAL IRRADIATION AT CYCLOTRON-BASED CLINICAL FACILITIES UNDER FLASH CONDITIONS by Lascaud, J., Pinto, M., Dash, P., Wieser, H.-P., Rouffaud, R., Certon, D., Sitarz, M., Poulsen, P., Parodi, K.

Get full text

Theoretical and experimental investigations of lateral modes in 1-3 piezocomposites by Certon, D., Casula, O., Patat, F., Royer, D.

“…Materials with a periodic microstructure show resonances caused by the elastic wave Bragg diffraction. This paper presents a simple approach to describe these…”
Get full text

Dispositif pour la détermination de facteurs de qualité osseuse (épaisseurs corticales, vitesses) par ultrasons : approche multimodale et multifréquence : le projet ANR-TecSan EVA by Talmant, M, Defontaine, M, Certon, D, Férin, G, Dufait, R, Minonzio, J.-G, Pham, T.-L, Laugier, P

“…Résumé Le projet EVA (2007–2009) a été retenu suite à l’appel 2006 ANR-TecSan. Il a été conduit par le laboratoire d’imagerie paramétrique et réalisé en…”
Get full text

Characterization of airborne transducers by optical tomography by Bou Matar, O., Pizarro, L., Certon, D., Remenieras, J.P., Patat, F.

“…This paper describes the application of an acousto-optic method to the measurement of airborne ultrasound. The method consists of a heterodyne interferometric…”
Get full text

Fast time-domain modeling of fluid-coupled cMUT cells: from the single cell to the 1-D linear array element by Senegond, N., Boulme, A., Plag, C., Teston, F., Certon, D.

“…We report a fast time-domain model of fluid-coupled cMUTs developed to predict the transient response-i.e., the impulse pressure response-of an element of a…”
Get full text

Propagation of Lamb waves in 1-3 piezocomposites and their application to liquid sensors by Teston, F., Feuillard, G., Certon, D., Levassort, F., Lethiecq, M.

“…This paper deals with the Lamb modes in 1-3 piezocomposites. The dispersion curves in the cases where the plate is free and loaded by water, as well as the…”
Get full text

Characterization of the piezoelectric and dielectric relaxation parameters of 0–3 composites and PVDF materials in thickness mode by Tran-Huu-Hue, L.P., Levassort, F., Lethiecq, M., Certon, D., Patat, F.

“…Thickness resonators of PVDF and 0–3 piezocomposite (CaPT/PVDF) have been characterized as a function of frequency. An analysis based on the resonance and…”
Get full text