Buscar
Mostrando ítems 1-10 de 161
Reliability of the ultrasonic pulse velocity for analysis and comparison of the compression strength of conventional concrete with addition of steel fiber and polypropyleneConfiabilidad de la velocidad de pulso ultrasónico para análisis y comparación de la resistencia a compresión de concreto convencional con adición de fibra de acero y polipropileno
(Universidad Centroccidental Lisandro Alvarado - Decanato de Ingeniería Civil, 2023)
Ultrasonic sound velocity measurement in samples of soft materials through under-resonance excitation
(2005)
Ultrasound (US) velocity determination is a valuable characterization technique, providing important information on elastic properties of materials. Sound velocity can be obtained accurately in the pulsed method if the ...
The use of pulsed electric acoustic technique for measuring the polarization reversal in ferroelectric ceramic samples
(2002-01-01)
The pulsed electric acoustic technique, PEA, has been usually applied to probe space charge profiles in polymers. Preliminary PEA results using a ferroelectric ceramic are presented. If the reverse applied electric field ...
The use of pulsed electric acoustic technique for measuring the polarization reversal in ferroelectric ceramic samples
(2002-01-01)
The pulsed electric acoustic technique, PEA, has been usually applied to probe space charge profiles in polymers. Preliminary PEA results using a ferroelectric ceramic are presented. If the reverse applied electric field ...
Estimación del coeficiente de difusión de cloruros en concreto utilizando la técnica de velocidad de pulso ultrasónico
(2008-06-27)
RESUMEN: En el presente trabajo se evaluó la correlación entre la velocidad de pulso ultrasónico y el coeficiente de penetración de cloruros en mezclas de concreto. Para tal efecto se diseñaron y fabricaron cinco mezclas ...
Modeling thin-film piezoelectric polymer ultrasonic sensors
(American Institute of Physics, 2014-11)
This paper presents a model suitable to design and characterize broadband thin film sensors based on piezoelectric polymers. The aim is to describe adequately the sensor behavior, with a reasonable number of parameters and ...