Ultrasonic characterization of a fluid layer using a broadband transducer.
Identifieur interne : 000550 ( France/Analysis ); précédent : 000549; suivant : 000551Ultrasonic characterization of a fluid layer using a broadband transducer.
Auteurs : Naïm Samet [France] ; Pierre Maréchal ; Hugues DufloSource :
- Ultrasonics [ 1874-9968 ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- chemical : Polymers, Silicone Oils.
- Transducers, Ultrasonics, Viscosity.
Abstract
A measurement method is proposed for the ultrasonic characterization of a fluid layer, corresponding to the resin transfer molding (RTM) manufacturing process. The ultrasonic velocity and attenuation of the silicone oil are measured in three samples having different viscosities. The measurement method is established on the basis of the attenuation of ultrasonic waves in fluids. A correction of the beam diffraction is implemented to improve measurement precision. A single element transducer with central frequency of 15 MHz is used. The tested fluids simulate the industrial resin used to manufacture composite materials. When injecting this resin, its viscosity increases until it reaches a critical state of polymerization. In this paper we focus on ultrasonic characterization of three fluids representing three intermediate cases of fluid resin during its injection before reaching the polymerization state.
DOI: 10.1016/j.ultras.2011.10.004
PubMed: 22071268
Affiliations:
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pubmed:22071268Le document en format XML
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The ultrasonic velocity and attenuation of the silicone oil are measured in three samples having different viscosities. The measurement method is established on the basis of the attenuation of ultrasonic waves in fluids. A correction of the beam diffraction is implemented to improve measurement precision. A single element transducer with central frequency of 15 MHz is used. The tested fluids simulate the industrial resin used to manufacture composite materials. When injecting this resin, its viscosity increases until it reaches a critical state of polymerization. In this paper we focus on ultrasonic characterization of three fluids representing three intermediate cases of fluid resin during its injection before reaching the polymerization state.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><noCountry><name sortKey="Duflo, Hugues" sort="Duflo, Hugues" uniqKey="Duflo H" first="Hugues" last="Duflo">Hugues Duflo</name><name sortKey="Marechal, Pierre" sort="Marechal, Pierre" uniqKey="Marechal P" first="Pierre" last="Maréchal">Pierre Maréchal</name></noCountry><country name="France"><region name="Région Normandie"><name sortKey="Samet, Naim" sort="Samet, Naim" uniqKey="Samet N" first="Naïm" last="Samet">Naïm Samet</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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