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Evaluation of plastic deformation in steels with magnetic and acoustic techniques
(2020-02-06)
Barkhausen Magnetic Noise (MBN) and Magnetic Acoustic Emission (MAE) are phenomena that occur in ferromagnetic materials which undergo changes in their magnetization. These phenomena are very sensitive to changes on ...
Determination of Nanoscale Mechanical Properties of Polymers via Plasmonic Nanoantennas
(2020-06-02)
Nanotechnology and the consequent emergence of miniaturized devices are driving the need to improve our understanding of the mechanical properties of a myriad of materials. Here we focus on amorphous polymeric materials ...
Diseño de un excitador electro-dinámico de bajo costo
(2021-04-03)
Los excitadores electrodinámicos, también conocidos como "shakers", son instrumentos fundamentales para realizar ensayos de vibraciones mecánicas. Sus numerosas aplicaciones los convierten en equipos de sumo interés en el ...
Estudio de vibraciones en componentes estructurales con presencia de fisuras
(AJEA, 2020-10-05)
Los componentes mecánicos y estructurales, a causa de la presencia de fisuras, son susceptibles de presentar fallas en servicio; ocasionando daños catastróficos e irreversibles. Este trabajo, se centra en el estudio de un ...
Determination of nanoscale mechanical properties of polymers via plasmonic nanoantennas
(2020-06-02)
Nanotechnology and the consequent emergence of miniaturized devices are driving the need to improve our understanding of the mechanical properties of a myriad of materials. Here we focus on amorphous polymeric materials ...
Dimensional characterization of large opaque samples and microdeformations by low coherence interferometry
(2020-01-25)
We report on the application of an interferometric system based on the low-coherence interferometry technique to the dimensional characterization of large opaque mechanical parts as well as microdeformations experienced ...
Extending low-coherence interferometry dynamic range using heterodyne detection
(2020-08)
Low-coherence interferometry (LCI) technique is generating considerable interest in industrial applications where there is a need for larger measurements with high resolution. Conventional Fourier domain systems reach a ...
Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
(2021-04)
The focus error signal is a widespread optical technique that harnesses the shape of a simply astigmatic Gaussian beam to produce an output signal with a well-defined linear range used for many different applications. ...