0000000001110845

AUTHOR

R. Del Rey

showing 2 related works from this author

Characterization of impervious layers using scale models and an inverse method

2009

We describe a novel procedure that uses an inverse method to determine unknown parameters for impervious layers used in multilayer structures. The proposed model of the multilayer structure is limited to an ideal double plate separated by an unbonded, fibrous, sound-absorbing material. Experimental data were obtained by nearfield acoustic holography for the calculation of the transmission loss of various multilayer structures mounted in a window in a wooden box designed specifically for this purpose. We used the Trochidis and Kalaroutis forecast model of acoustic insulation for multilayer structures, which is based on a spatial Fourier transform. The experimental pressure and velocity data …

Inverse methodsEngineeringAcoustics and UltrasonicsAcousticsImpedance couplingHolographyExperimental dataMultilayer structuresAnalysis modelslaw.inventionScale modelssymbols.namesakeOpticsUnknown parameterslawInput dataObservational errorSound absorbing materialsNearfield Acoustic Holographybusiness.industryTransmission lossMechanical EngineeringNumerical analysisSpatial Fourier TransformFORECAST modelAcoustic holographyInverse problemCondensed Matter PhysicsImpervious layersFourier transformMechanics of MaterialsFISICA APLICADAsymbolsbusinessStructural acousticsPosition sensorJournal of Sound and Vibration
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Acoustic Environmental Monitoring System for Acoustic Maps

2008

In this work, it is developed a data acquisition and analysis system for the monitoring of acoustic environmental noises and the elaboration of dynamic acoustic maps. This project is based on the obtaining of acoustic data in different measure points, and it is formed by a mesh of connections based on GPRS NODES and a Software Server for the administration and control of the data.

Measure (data warehouse)Computer sciencebusiness.industryReal-time computingCondition monitoringNoiseData acquisitionSoftwareEmbedded systemGround-penetrating radarEnvironmental monitoringComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMSGeneral Packet Radio Servicebusiness2008 The Second International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies
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