Dr. Ángel F. Doval Profile

Dr. Ángel F. Doval

Associate Professor at Univ de Vigo

SPIE Involvement:

Author | Editor

Publications (50)

Proceedings Article | 7 September 2018 Paper

Quantitative analysis of the agreement between scalar finite element simulation and pulsed TV-holography detection of the scattering of Rayleigh-Lamb waves in plates

José Carlos López-Vázquez, Cristina Trillo, Ángel Doval , José Fernández, Pablo Rodríguez-Gómez

Proceedings Volume 10834, 1083416 (2018) https://doi.org/10.1117/12.2318604

KEYWORDS: Scattering, Error analysis, Wave plates, Finite element methods, Acoustics, Wave propagation, Quantitative analysis, Visualization, Holography, Speckle

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Proceedings Article | 7 September 2018 Paper

Propagation of the measurement uncertainty for the numerical reconstruction of holograms in Fresnel approximation

Ángel Doval, Cristina Trillo, José Carlos López-Vázquez, José Fernández

Proceedings Volume 10834, 1083408 (2018) https://doi.org/10.1117/12.2318661

KEYWORDS: Holograms, Digital holography, Monte Carlo methods, Fourier transforms, Cameras, Holography, Imaging systems, Phase measurement, Holographic interferometry, Uncertainty analysis, Optical metrology, Speckle metrology

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SPIE Journal Paper | 30 June 2016

Propagation of the measurement uncertainty in Fourier transform digital holographic interferometry

Ángel F. Doval, Cristina Trillo, J. Carlos López-Vázquez, José Fernández

OE, Vol. 55, Issue 12, 121709, (June 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.12.121709

KEYWORDS: Digital holography, Holograms, Holographic interferometry, Fourier transforms, Cameras, Phase measurement, Optical engineering, Holography, 3D image reconstruction, Statistical analysis

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Proceedings Article | 24 August 2015 Paper

Evaluation of the uncertainty of phase-difference measurements in (quasi-)Fourier transform digital holographic interferometry

Ángel Doval, Cristina Trillo, José Carlos López Vázquez, José Fernández

Proceedings Volume 9660, 966007 (2015) https://doi.org/10.1117/12.2196205

KEYWORDS: Holograms, Digital holography, Holographic interferometry, Phase measurement, Fourier transforms, Holography, Bismuth, Statistical analysis, Cameras, Calibration

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SPIE Journal Paper | 20 August 2013 Open Access

Special Section Guest Editorial: Speckle Metrology

Angel Fernandez Doval, Cristina Trillo, Jose Carlos Lopez-Vazquez

OE, Vol. 52, Issue 10, 101901, (August 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.101901

KEYWORDS: Speckle metrology, Speckle, Digital holography, Optical engineering, Applied physics, Interferometry, Nondestructive evaluation, Electronics engineering, Optical metrology, Speckle pattern

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SPIE Journal Paper | 11 July 2013

Transient elastic wave propagation and scattering in plates: comparison between pulsed TV-holography measurements and finite element method predictions

Pablo Rodríguez-Gómez, José Carlos López-Vázquez, Cristina Trillo, Angel Doval, José Fernández

OE, Vol. 52, Issue 10, 101911, (July 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.101911

KEYWORDS: Scattering, Wave propagation, Wave plates, Finite element methods, Acoustics, Ultrasonics, Optical engineering, Phase velocity, Nondestructive evaluation, Backscatter

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SPIE Journal Paper | 3 May 2013

Episcopic coaxial illumination instrument for the simultaneous recording of the speckle signature in the energy spectrum and in the image of scattering reflective surfaces

José Fernández, José Carlos López-Vázquez, Cristina Trillo, Ángel Doval

OE, Vol. 52, Issue 10, 101906, (May 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.101906

KEYWORDS: Speckle, Inspection, Fourier transforms, Reflection, Spatial frequencies, Wavefronts, Image processing, Illumination engineering, Scattering, Optical engineering

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Proceedings Article | 11 September 2012 Paper

Transient elastic wave propagation and scattering in plates: comparison between pulsed TV-holography measurements and finite element method predictions

Pablo Rodríguez-Gómez, José Carlos López-Vázquez, Cristina Trillo, Ángel Doval, José Fernández

Proceedings Volume 8413, 84130Z (2012) https://doi.org/10.1117/12.977644

KEYWORDS: Scattering, Finite element methods, Wave propagation, Wave plates, Rayleigh scattering, Acoustics, Nondestructive evaluation, Solids, Mirrors, Inspection

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Proceedings Article | 11 September 2012 Paper

Episcopic coaxial illumination device for the simultaneous recording of the speckle signature in the spectrum and in the image of scattering reflective surfaces

José Fernández, José Carlos López-Vázquez, Cristina Trillo, Ángel Doval

Proceedings Volume 8413, 84131O (2012) https://doi.org/10.1117/12.978075

KEYWORDS: Speckle, Reflectivity, Inspection, Image processing, Fourier transforms, Spatial frequencies, Scattering, Wavefronts, Beam splitters, Collimation

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Proceedings Article | 14 September 2010 Paper

Dimensionless formulation of the convolution and angular spectrum reconstruction methods in digital holography

Ángel Doval, Cristina Trillo

Proceedings Volume 7387, 73870U (2010) https://doi.org/10.1117/12.870049

KEYWORDS: Convolution, Digital holography, Holograms, Fourier transforms, Free space, Holography, Reconstruction algorithms, Image resolution, Sensors, Spatial resolution

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Proceedings Article | 14 September 2010 Paper

Characterization of defects in plates by two-dimensional ultrasonic displacement maps: comparison between pulsed TV-holography measurements and finite element method predictions

P. Rodríguez-Gómez, J. Carlos López-Vázquez, Cristina Trillo, Ángel Doval, José Fernández

Proceedings Volume 7387, 73871I (2010) https://doi.org/10.1117/12.870769

KEYWORDS: Scattering, Finite element methods, Wave plates, Acoustics, Ultrasonics, Wave propagation, Fourier transforms, Data modeling, Nondestructive evaluation, 3D modeling

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Proceedings Article | 14 September 2010 Paper

Spatiotemporal 3D Fourier transform evaluation of speckle interferogram sequences in double-pulsed TV holography

C. Trillo, A. Doval

Proceedings Volume 7387, 738704 (2010) https://doi.org/10.1117/12.870761

KEYWORDS: Fourier transforms, Speckle, Optical filters, Acoustics, Holography, 3D image processing, Cameras, 3D acquisition, 3D metrology, Information operations

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SPIE Journal Paper | 1 September 2010

Numerical modeling and measurement by pulsed television holography of ultrasonic displacement maps in plates with through-thickness defects

Jose Carlos López-Vázquez, Luís Xosé, Cristina Trillo, Ángel Doval, José Fernandez, Faisal Amlani, Oscar Bruno

OE, Vol. 49, Issue 09, 095802, (September 2010) https://doi.org/10.1117/12.10.1117/1.3484953

KEYWORDS: Scattering, Holography, Ultrasonics, Numerical modeling, Wave plates, Televisions, Wave propagation, Acoustics, Fourier transforms, Optical engineering

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Proceedings Article | 17 June 2009 Paper

Modelling for characterizing defects in plates using two-dimensional maps of instantaneous ultrasonic out-of-plane displacement obtained by pulsed TV-holography

J. Carlos López-Vázquez, J. Luis Deán, Cristina Trillo, Ángel Doval, José Fernández, Faisal Amlani, Oscar Bruno

Proceedings Volume 7389, 738937 (2009) https://doi.org/10.1117/12.827819

KEYWORDS: Scattering, Wave plates, Acoustics, Ultrasonics, Waveguides, Wave propagation, Fourier transforms, Nondestructive evaluation, Data modeling, Inspection

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Proceedings Article | 17 June 2009 Paper

Determination of the frequency spectrum of Lamb waves from a sequence of maps of the instantaneous acoustic displacement obtained with TV holography

J. Luis Deán, Cristina Trillo, J. Carlos López-Vázquez, Ángel Doval, José Fernández

Proceedings Volume 7389, 73891O (2009) https://doi.org/10.1117/12.827675

KEYWORDS: Fourier transforms, Wave plates, Wave propagation, Acoustics, Pulsed laser operation, Holography, Aluminum, Spatial frequencies, Polymethylmethacrylate, Transducers

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Proceedings Article | 25 September 2008 Paper

Fourier transform evaluation and numerical modeling of fluid flow in a Laval nozzle

F. Rodríguez, B. Dorrío, A. Doval

Proceedings Volume 7102, 710211 (2008) https://doi.org/10.1117/12.797979

KEYWORDS: Fourier transforms, Interferometry, Diamond patterning, Fluid dynamics, Diamond, Fringe analysis, Beam splitters, CMOS cameras, Metrology, Fluctuations and noise

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Proceedings Article | 17 June 2008 Paper

Scanner of dynamic deflections (SCADD): a new approach for field data acquisition of the vibration of civil structures

José Fernández, Rafael Comesaña, Cristina Trillo, Ángel Doval, J. Luis Deán

Proceedings Volume 7098, 70980K (2008) https://doi.org/10.1117/12.803002

KEYWORDS: Retroreflectors, Head, Data acquisition, Prototyping, Scanners, Sensors, Inspection, Calibration, Laser scanners, Modal analysis

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Proceedings Article | 17 June 2008 Paper

Full-field localization of plate-thickness inhomogeneities through the local changes in the wavenumber of Lamb waves measured with pulsed TV holography

J. Luis Deán, Cristina Trillo, Ángel Doval, José Fernández

Proceedings Volume 7098, 70980F (2008) https://doi.org/10.1117/12.802983

KEYWORDS: Wave plates, Holography, Wave propagation, Acoustics, Phase velocity, Dispersion, Wavefronts, Phase measurement, Fourier transforms, Interferometry

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Proceedings Article | 17 June 2008 Paper

Video visualization of the dispersive behaviour of Rayleigh and Lamb wavetrains by double-pulsed TV holography

J. Luis Deán, Cristina Trillo, Ángel Doval, José Fernández

Proceedings Volume 7098, 70980L (2008) https://doi.org/10.1117/12.803003

KEYWORDS: Acoustics, Phase velocity, Wave propagation, Wave plates, Holography, Waveguides, Aluminum, Video, Visualization, Optical filters

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Proceedings Article | 17 June 2008 Paper

Numerical reconstruction of acoustic bulk waves in aluminium from TV holography surface displacement measurements

Cristina Trillo, Ángel Doval, J. Luis Deán, Socorro Hernández-Montes

Proceedings Volume 7098, 70980G (2008) https://doi.org/10.1117/12.802984

KEYWORDS: Wavefronts, Acoustics, Holography, Aluminum, Digital holography, Fourier transforms, Optical testing, Ultrasonics, Wave propagation, 3D image processing

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Proceedings Article | 15 September 2006 Paper

Enhanced measurement of ultrasonic surface acoustic waves with TV holography by correction of phase mismatch between laser cavities

Cristina Trillo, Ángel Doval, Mariano Pérez-Amor

Proceedings Volume 6341, 63412X (2006) https://doi.org/10.1117/12.695996

KEYWORDS: Ultrasonics, Acoustics, Holography, Pulsed laser operation, Laser resonators, Fourier transforms, Wave propagation, Cameras, Image filtering, Optical filters

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Proceedings Article | 15 September 2006 Paper

Spatiotemporal Fourier transform method for the measurement of narrowband ultrasonic surface acoustic waves with TV holography

Cristina Trillo, Ángel Doval

Proceedings Volume 6341, 63410M (2006) https://doi.org/10.1117/12.695290

KEYWORDS: Fourier transforms, Ultrasonics, Acoustics, Wave propagation, Holography, Spatial frequencies, Optical filters, Imaging systems, Computing systems, Temporal resolution

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Proceedings Article | 15 September 2006 Paper

Measurement of Lamb waves dispersion curves under narrowband monomode excitation using TV holography

J. Luis Deán, José Fernández, Ángel Doval, Cristina Trillo

Proceedings Volume 6341, 63410B (2006) https://doi.org/10.1117/12.695270

KEYWORDS: Wave plates, Holography, Phase velocity, Acoustics, Dispersion, Ultrasonics, Speckle, Aluminum, Fourier transforms, Americium

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Proceedings Article | 15 September 2006 Paper

Hybrid optonumerical quasi Fourier transform digital holographic camera

Ángel Doval, Cristina Trillo

Proceedings Volume 6341, 63410Z (2006) https://doi.org/10.1117/12.695340

KEYWORDS: Digital holography, Holograms, Holography, Cameras, 3D image reconstruction, Fourier transforms, Sensors, Digital cameras, Holographic interferometry, Objectives

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Proceedings Article | 13 June 2005 Paper

Measurement of beating effects in narrowband multimode Lamb wave displacement fields in aluminum plates by pulsed TV Holography

Jose Fernandez, Cristina Trillo, Angel Doval, Daniel Cernadas, Carlos Lopez, Benito Dorrio, Marta Miranda, Francisco Rodriguez

Proceedings Volume 5856, (2005) https://doi.org/10.1117/12.612315

KEYWORDS: Wave plates, Holography, Phase velocity, Ultrasonics, Acoustics, Aluminum, Wave propagation, Ultrasonography, Inspection, Fourier transforms

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Proceedings Article | 13 June 2005 Paper

Laval nozzle flow characterization by Fourier-transform Mach-Zehnder interferometry

Francisco Rodriguez, Benito Dorrio, Angel Doval, Cristina Trillo, Felix Quintero, Marta Miranda, Carlos Lopez, Jose Fernandez

Proceedings Volume 5856, (2005) https://doi.org/10.1117/12.612619

KEYWORDS: Fringe analysis, Interferometry, Fourier transforms, Laser cutting, Visualization, Ceramics, Mach-Zehnder interferometers, Interferometers, Laser processing, Materials processing

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Proceedings Article | 27 May 2003 Paper

Measurement of the mechanical amplitude and phase of transient surface acoustic waves using double-pulsed TV holography and the spatial Fourier transform method

Cristina Trillo, Angel Doval, Daniel Cernadas, Oscar Lopez, Carlos Lopez, Benito Dorrio, Jose Fernandez, Mariano Perez-Amor

Proceedings Volume 4933, (2003) https://doi.org/10.1117/12.516578

KEYWORDS: Fourier transforms, Acoustics, Wave propagation, Holography, Cameras, Beam splitters, Modulation, Interferometers, CCD cameras, Ultrasonics

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Proceedings Article | 27 May 2003 Paper

Lens less zooming fourier-transform digital holography

Angel Doval, Cristina Trillo, Oscar Lopez, Daniel Cernadas, Carlos Lopez, Benito Dorrio, Jose Fernandez, Mariano Perez-Amor

Proceedings Volume 4933, (2003) https://doi.org/10.1117/12.516617

KEYWORDS: Cameras, Digital holography, Holograms, 3D image reconstruction, Speckle, Fourier transforms, Image processing, Spatial frequencies, Imaging systems, Optical filters

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Proceedings Article | 22 May 2002 Paper

Nondestructive testing technique combining ultrasonic Lamb waves and double-pulse TV holography

Daniel Cernadas, C. Trillo, Angel Doval, Carlos Lopez, Benito Dorrio, J. Fernandez, Mariano Perez-Amor

Proceedings Volume 4827, (2002) https://doi.org/10.1117/12.468155

KEYWORDS: Ultrasonics, Wave plates, Wave propagation, Nondestructive evaluation, Inspection, Holography, Holographic interferometry, Wavefronts, Cameras, Aluminum

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Proceedings Article | 14 August 2001 Paper

Laser surface blasting of granite

Juan Pou, R. Soto, C. Trillo, Angel Doval, M. Boutinguiza, F. Lusquinos, F. Quintero, Mariano Perez-Amor

Proceedings Volume 4419, (2001) https://doi.org/10.1117/12.437086

KEYWORDS: Surface finishing, Laser therapeutics, High power lasers, Diodes, Cladding, Buildings, Radium, Polishing, High power diode lasers, Minerals

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SPIE Journal Paper | 1 August 2000

Measurement of transient out-of-plane displacement gradients in plates using double-pulsed subtraction TV shearography

Antonio Fernandez, Angel Doval, Guillermo Kaufmann, Abundio Davila, Jesus Blanco-Garcia, Carlos Perez-Lopez, J. Fernandez

OE, Vol. 39, Issue 08, (August 2000) https://doi.org/10.1117/12.10.1117/1.1305260

KEYWORDS: Fringe analysis, Televisions, Speckle, Shearography, Pulsed laser operation, Mirrors, Optical engineering, Fourier transforms, Interferometers, Speckle pattern

Proceedings Article | 15 September 1999 Paper

Fiber optic probe for in-situ inspection of surface cracks in steam generator tubes

Jose Carlos Lopez Vazquez, Angel Doval, Benito Dorrio, J. Bugarin, Jose Alen, J. Fernandez, Mariano Perez-Amor, Benjamin Tejedor

Proceedings Volume 3825, (1999) https://doi.org/10.1117/12.364290

KEYWORDS: Inspection, Prototyping, Image processing, Calibration, Optical inspection, Imaging systems, Reflectivity, Fiber optics, Control systems, Head

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Proceedings Article | 13 August 1999 Paper

Transparent object analysis in a Mach-Zehnder interferometer using the multiplicative analogical moire phase-shifting method

Benito Dorrio, Jose Carlos Lopez Vazquez, Angel Doval, Mariano Perez-Amor, J. Fernandez

Proceedings Volume 3744, (1999) https://doi.org/10.1117/12.357699

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SPIE Journal Paper | 1 November 1998

Comparison of carrier removal methods in the analysis of television holography fringes by the Fourier transform method

Antonio Fernandez, Guillermo Kaufmann, Angel Doval, Jesus Blanco-Garcia, J. Fernandez

OE, Vol. 37, Issue 11, (November 1998) https://doi.org/10.1117/12.10.1117/1.601980

KEYWORDS: Fringe analysis, Error analysis, Fourier transforms, Modulation, Holography, Phase shift keying, Optical engineering, Interferometers, Televisions, Phase measurement

Proceedings Article | 30 June 1998 Paper

Double-pulsed-carrier speckle-shearing pattern interferometry for transient deformation analysis

J. Fernandez, Antonio Fernandez, Angel Doval, Abundio Davila, Jesus Blanco-Garcia, Carlos Perez-Lopez

Proceedings Volume 3478, (1998) https://doi.org/10.1117/12.312955

KEYWORDS: Fringe analysis, Pulsed laser operation, Interferometry, Image processing, Double patterning technology, Lenses, Linear filtering, Mirrors, Charge-coupled devices, Modulation

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Proceedings Article | 17 September 1997 Paper

Comparison of the moire two-beam phase-stepping and Fourier transform method techniques in Fizeau interferometry

Benito Dorrio, Jose Carlos Lopez Vazquez, Jose Alen, J. Bugarin, Antonio Fernandez, Angel Doval, Jesus Blanco-Garcia, Mariano Perez-Amor, J. Fernandez

Proceedings Volume 3098, (1997) https://doi.org/10.1117/12.281167

KEYWORDS: Moire patterns, Fourier transforms, Image processing, Interferometry, Fringe analysis, Interferometers, Linear filtering, Image acquisition, Superposition, Phase interferometry

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Proceedings Article | 17 September 1997 Paper

Phase-shifted double single-pulse additive stroboscopic TV holography for the measurement of high-frequency vibrations using low-bandwidth phase-modulation devices

Jose Alen, Angel Doval, J. Bugarin, Benito Dorrio, Jose Carlos Lopez Vazquez, Antonio Fernandez, Jesus Blanco-Garcia, Mariano Perez-Amor, J. Fernandez

Proceedings Volume 3098, (1997) https://doi.org/10.1117/12.281156

KEYWORDS: Modulators, Phase shift keying, Phase modulation, Image processing, Modulation, Beam splitters, Control systems, CCD cameras, Signal processing, Digital signal processing

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Proceedings Article | 17 September 1997 Paper

Transient bending wave analysis by Fourier evaluation of single-pulsed TV holography fringe patterns

Antonio Fernandez, Angel Doval, J. Bugarin, Benito Dorrio, Jose Carlos Lopez Vazquez, Jose Alen, Jesus Blanco-Garcia, Mariano Perez-Amor, J. Fernandez

Proceedings Volume 3098, (1997) https://doi.org/10.1117/12.281206

KEYWORDS: Optical fibers, Modulation, Visibility, Spectroscopy, Fringe analysis, Fourier transforms, Monochromators, Phase shift keying, Holography, Semiconductor lasers

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Proceedings Article | 18 September 1996 Paper

High-reflectivity surface evaluation in Fizeau phase-stepping interferometry with a Ronchi grid as phase modulator

Benito Dorrio, J. Bugarin, Jose Alen, Antonio Fernandez, Angel Doval, Jose Carlos Lopez Vazquez, Jesus Blanco-Garcia, J. Fernandez, Mariano Perez-Amor

Proceedings Volume 2782, (1996) https://doi.org/10.1117/12.250752

KEYWORDS: Moire patterns, Phase interferometry, Interferometry, Modulators, Reflectivity, Fizeau interferometers, Image filtering, Superposition, Modulation

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Proceedings Article | 5 February 1996 Paper

Crack detection by TV holography: continuous and pulsed techniques

Jesus Blanco-Garcia, Angel Doval, Antonio Fernandez, Benito Dorrio, Jose Carlos Lopez Vazquez, R. Soto, Jose Alen, J. Fernandez, Mariano Perez-Amor

Proceedings Volume 2730, (1996) https://doi.org/10.1117/12.231047

KEYWORDS: Pulsed laser operation, Silicon, Image processing, CCD cameras, Imaging systems, Computing systems, Image sensors, Holography, Astatine, Silicon carbide

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Proceedings Article | 5 February 1996 Paper

Surface evaluation combining the moire effect and phase-stepping techniques in Fizeau interferometry

Benito Dorrio, Jesus Blanco-Garcia, Angel Doval, Jose Carlos Lopez Vazquez, R. Soto, J. Bugarin, J. Fernandez, Mariano Perez-Amor

Proceedings Volume 2730, (1996) https://doi.org/10.1117/12.231093

KEYWORDS: Moire patterns, Superposition, Phase shift keying, Interferometry, Interferometers, Linear filtering, Reflectivity, Phase modulation, Image acquisition, Phase interferometry

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Proceedings Article | 2 August 1995 Paper

Analysis of the measurement range in Fizeau phase-stepping interferometry using the moire effect

Benito Dorrio, Jesus Blanco-Garcia, Angel Doval, Jose Carlos Lopez Vazquez, R. Soto, J. Fernandez, Mariano Perez-Amor

Proceedings Volume 2576, (1995) https://doi.org/10.1117/12.215626

KEYWORDS: Moire patterns, Interferometers, Linear filtering, Superposition, Phase interferometry, Interferometry, Spatial filters, Collimators, Phase shift keying, Phase modulation

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Proceedings Article | 30 November 1994 Paper

Whole-field vibration phase measurement with electronic speckle pattern interferometry (ESPI)

Jesus Valera, Julian Jones, Angel Doval

Proceedings Volume 2342, (1994) https://doi.org/10.1117/12.195504

KEYWORDS: Phase measurement, Modulation, Speckle pattern, Interferometry, Argon, Composites, Video, CCD cameras, Beam splitters, Phase interferometry

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Proceedings Article | 15 November 1994 Paper

Automation of the phase-map extraction by a moire technique in a Fizeau interferometer

Benito Dorrio, Angel Doval, Jose Carlos Lopez Vazquez, R. Soto, Jesus Blanco-Garcia, J. Fernandez, Mariano Perez-Amor

Proceedings Volume 2248, (1994) https://doi.org/10.1117/12.194320

KEYWORDS: Moire patterns, Superposition, Fizeau interferometers, Image processing, Image acquisition, Lamps, Semiconductor lasers, Solids, Fabry–Perot interferometers, Interferometers

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Proceedings Article | 15 November 1994 Paper

Whole-field vibration phase measurement with electronic speckle pattern interferometry (ESPI)

Jesus Valera, Julian Jones, Angel Doval

Proceedings Volume 2248, (1994) https://doi.org/10.1117/12.194326

KEYWORDS: Phase measurement, Modulation, Speckle pattern, Composites, Video, CCD cameras, Beam splitters, Interferometry, Phase interferometry, Interferometers

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Proceedings Article | 15 November 1994 Paper

Phase-stepped additive stroboscopic fiber optic TV holography for vibration analysis

Angel Doval, J. Fernandez, Mariano Perez-Amor, Jesus Valera, Julian Jones

Proceedings Volume 2248, (1994) https://doi.org/10.1117/12.194325

KEYWORDS: Speckle, Phase shift keying, Modulation, Image processing, Fiber optics, Holography, Visibility, Cameras, Modulators, Phase modulation

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Proceedings Article | 9 November 1994 Paper

New fiber optic laser probe for the automatic inspection of cracks in the inner side of heat exchanger tubes of nuclear power plants

Jose Carlos Lopez Vazquez, Angel Doval, Benito Dorrio, R. Soto, Jesus Blanco-Garcia, J. Fernandez, Mariano Perez-Amor, Benjamin Tejedor

Proceedings Volume 2247, (1994) https://doi.org/10.1117/12.193949

KEYWORDS: Inspection, Fiber optics, Sensors, Imaging systems, Image resolution, Image processing, Prototyping, Fiber optics tests, Optical fibers, Defect detection

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Proceedings Article | 8 September 1994 Paper

Contrast-enhanced and phase-controlled stroboscopic additive fiber optic TV holography for whole field out-of-plane vibration analysis

Angel Doval, J. Fernandez, Mariano Perez-Amor, Jesus Valera, Julian Jones

Proceedings Volume 2358, (1994) https://doi.org/10.1117/12.185338

KEYWORDS: Phase shift keying, Holography, Vibrometry, Fiber optics, Speckle, Control systems, Speckle pattern, Interferometers, Phase modulation, Modulation

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Proceedings Article | 28 May 1993 Paper

Novel fiber optic laser probe for the inspection of internal cylindrical surfaces

Jose Carlos Lopez Vazquez, J. Fernandez, Jesus Blanco-Garcia, Angel Doval, Benito Dorrio, Francisco Pino Alvarez, Mariano Perez-Amor

Proceedings Volume 1821, (1993) https://doi.org/10.1117/12.145556

KEYWORDS: Inspection, Fiber optics, Sensors, Laser beam diagnostics, Fiber lasers, Laser optics, Control systems, Optical fibers, Signal detection, Prototyping

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Proceedings Article | 1 October 1991 Paper

Study of plate vibrations by moire holography

Jesus Blanco-Garcia, J. Fernandez, Angel Doval, Jose Carlos Lopez Vazquez, Francisco Pino Alvarez, Mariano Perez-Amor

Proceedings Volume 1508, (1991) https://doi.org/10.1117/12.47105

KEYWORDS: Moire patterns, Image filtering, Holography, Optical filters, Linear filtering, Image processing, Fringe analysis, Speckle, Convolution, Digital image processing

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