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Indexes to evaluate risk based metrological performance in companies in the energy sector
(Universidad Nacional de Misiones. Facultad de Ciencias Económicas. Programa de Posgrado en Administración, 2021-03-30)
The metrological performance evaluation is a tool that allows feedback in the management of measurements and the monitoring of the results achieved by the organizations that apply it. In many companies this type of evaluation ...
Speckle decorrelation influence on measurements quality in vortex metrology
(Elsevier Science, 2012-10-01)
We study speckle decorrelation effects in connection with conventional vortex metrology techniques. Our proposal is based on processing speckled images recorded by using two different experimental set-ups. In both schemes ...
Validation study of repeatability and reproducibility as part of the metrological control in the laboratory of quality control of an agroindustrial companyValidación del estudio de repetibilidad y reproducibilidad como parte del control metrológico en el laboratorio de control de calidad de una empresa agroindustrial
(Universidad Centroccidental Lisandro Alvarado, 2013)
Evaluation of structural similarity quality measures for wrapped recovered phase maps in optical metrology
(Elsevier, 2019-05)
We propose and evaluate structural similarity quality measures for wrapped recovered phase maps in the range of [0, 2π). The proposed measures adapt the mathematical description of a structural similarity index employed ...
Performance of an optical encoder based on a nondiffractive beam implemented with a specific photodetection integrated circuit and a diffractive optical element
(Optical Society of America, 2015-09)
In this paper, we study the incremental signal produced by an optical encoder based on a nondiffractive beam (NDB). The NDB is generated by means of a diffractive optical element (DOE). The detection system is composed by ...
Comparisons between singularities of pseudophase and speckle phase using binary diffusers in optical vortex metrology
(Society of Photo-Optical Instrumentation Engineers, 2016-12)
An analysis based on the comparison between singularities of speckle phase and pseudophase in the practice of optical vortex metrology is carried out by measuring the phase map of the speckle pattern obtained from the ...
Studies of ancient metrology Another face of space-timeEstudios de Metrología Antigua Otra cara del espacio-tiempo
(Universidad Técnica Nacional (Costa Rica), 2022)
Vortex analysis in dynamic speckle images
(Optical Society of America, 2009-12)
Optical vortex analysis has become an important tool in optical metrology. It has been shown to be able to measure small displacements with up to nanometric precision. We analyze optical vortex behavior in dynamic speckle ...
Optical vortex metrology from phase modulo 2 p maps
(2012-01-01)
Conventional Optical Vortex Metrology techniques rely on the generation of pseudophase maps for image processing and measuring. In our work, as a novel alternative the application of this techniquefrom phase modulo 2p maps ...