Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Pierre Ravinet"'
Publikováno v:
Le Pharmacien Hospitalier et Clinicien. 51:359
Introduction Afin de realiser des images exploitables pour certains examens radiologiques en pediatrie, une sedation medicamenteuse est indispensable chez les enfants de 3 mois a 5 ans. Depuis les restrictions d’utilisation du sirop d’hydrate de
Publikováno v:
Journal of the American Chemical Society. 99:169-182
Publikováno v:
Ferroelectrics. 51:143-150
Piezopolymer dome-shaped diaphragmsare studied for their use as telephone transducers. The earphone efficiency is shown to be limited by the piezoelectric coupling factor. Microphones using thick PVF2 diaphragms are described and exhibit a well fitte
Publikováno v:
Chemischer Informationsdienst. 8
Publikováno v:
The Journal of the Acoustical Society of America. 72:S24-S24
Dome shaped piezopolymer transducers can be considered as membrane or shell structures, depending on the thickness of the thermoformed film. We report an analysis of the mechanical behavior of such structures, taking into account both the extensional
Publikováno v:
The Journal of the Acoustical Society of America. 86:865-865
In a piezoelectric microphone or hydrophone, the elastic structure which reacts directly to the acoustic pressure is formed of piezoelectric polymer. The electroacoustic transducer according to the invention makes use of an elastic structure in the f
Autor:
Pierre Ravinet, Francois Micheron
Publikováno v:
The Journal of the Acoustical Society of America. 78:2163-2163
A process for manufacturing an electrochemical transducer, having at least one active element in the form of at least one film of a polymer material, comprises the following steps. First, clamping a polymer film between an inner set of jaws for delim
Publikováno v:
The Journal of the Acoustical Society of America. 76:1287-1287
The invention relates to an electro-acoustic transducer using a self-supporting active radiating membrane made from a polymer material. The invention provides a transducer in which a resilient shape restoring member fixed to the case capped by the ra
Autor:
Pierre Ravinet, Francois Micheron
Publikováno v:
The Journal of the Acoustical Society of America. 76:339-339
An electromechanical transducer comprising a radiating structure whose active element is formed by a polymer film placed between two electrodes. The invention provides a transducer in which a closure element having the exact shape of a spherical surf