These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Modeling of a high frequency ultrasonic transducer using periodic structures.
    Author: Maréchal P, Haumesser L, Tran-Huu-Hue LP, Holc J, Kuscer D, Lethiecq M, Feuillard G.
    Journal: Ultrasonics; 2008 Apr; 48(2):141-9. PubMed ID: 18255118.
    Abstract:
    Solidly mounted integrated transducers with a Bragg cell inserted between the piezoelectric film and the substrate are investigated for high frequency ultrasonic applications. A numerically stable recursive one dimensional transmission/reflection model was used to analyze the behavior of the periodic structure. This theoretical analysis includes the study of the influence of the acoustic properties of the constitutive layer, the effect of the number of cells and their arrangement. A 35 MHz integrated transducer consisting in a PZT ceramic laid down on a Au/PZT Bragg cell deposited on a porous substrate was fabricated and characterized. Both theoretical and experimental results highlight the interest of using a periodic structure for high frequency ultrasonic applications.
    [Abstract] [Full Text] [Related] [New Search]