Combined denoising filter for fringe pattern in electronic speckle shearing pattern interferometry [PDF]
, 2015 We propose an effective image denoising filter that combines an improved spin filter (ISF) and wave atoms thresholding (WA) to remove the noise of fringe patterns in electronic speckle shearing pattern interferometry.
Jia, Dagong +5 more
core +1 more source
Dynamic deformation analysis of aluminum alloy 5083 using electronic speckle pattern interferometry
Journal of Materials Research and TechnologyIn this study, we propose a phase-analysis algorithm that operates on a single contour image obtained via electronic speckle pattern interferometry (ESPI) to investigate non-uniform deformation in Al–Mg alloys.
Yuto Takanezawa +2 more
doaj +1 more source
Holographic and Video Techniques Applied to Engineering Measurement
Measurement + Control, 1971 In a brief period, lasers have developed from curiosities of the physics laboratory to tools suited to incorporation in complex instrumentation systems.
J N Butters, J A Leendertz
doaj +1 more source
Direct strain and slope measurement using 2D DSPSI Title [PDF]
, 2011 Large variety of optical full-field measurement techniques are being developed and applied to solve mechanical problems. Since each technique possess its own merits, it is important to know the capabilities and limitations of such techniques. Among these
Dandach, Wajdi +2 more
core +4 more sources
A hybrid technique for residual stress analysis through stress function fitting
Latin American Journal of Solids and StructuresThis work presents a hybrid experimental theoretical technique for residual stresses analysis of mechanical components. It was used the blind hole technique along with the Electronic Speckle Pattern Interferometry (ESPI) method and Airy stress functions ...
Marco Antonio Martins Cavaco
doaj +1 more source
工程科学学报, 2015 The initial corrosion behavior of the acrylic polyurethane coating/carbon steel interface in a 3.5% NaCl solution was in-situ investigated by electronic speckle pattern interferometry(ESPI),electrochemical impedance spectroscopy(EIS) and scanning ...
JIANG Hong-xia +5 more
doaj +1 more source
The effect of low-cycle fatigue on evolution of fracture mechanics parameters in residual stress field caused by cold hole expansion [PDF]
Fracture and Structural Integrity, 2019 Localized displacement measurements based on electronic speckle-pattern interferometry are used to obtain crack mouth opening displacement (CMOD), stress intensity factor (SIF) and T-stress values during crack growth around cold-expanded holes.
Yu. G. Matvienko +2 more
doaj +1 more source
Polarization Imperfections of Light in Interferometry [PDF]
, 2009 Disertační práce pojednává o polarizačních nedokonalostech optických komponentů, které jsou využívány ke kontrole a k transformaci polarizačního stavu světla.
Kučera, Petr
core
Better 3D Inspection with Structured Illumination Part I: Signal Formation and Precision
, 2015 For quality control in the factory, 3D-metrology faces increasing demands for high precision and for more space-bandwidth-speed-product SBSP (number of 3D-points/sec). As a potential solution, we will discuss Structured-Illumination Microscopy (SIM).
Häusler, Gerd +2 more
core +1 more source
Metasurfaces and Metadevices for Topological Electromagnetic Waves
Advanced Physics Research, EarlyView.Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie +3 more
wiley +1 more source