Quantitative measurement of the vibrational amplitude and phase in photorefractive time-average interferometry: A comparison with electronic speckle pattern interferometry [PDF]
, 1994 Henrik Rohleder +2 more
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Stress and Strain Fields Analysis by Method ESPI with Use of Fixture for Shear Examination Arcan [PDF]
Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2013 This article describes the possibilities of utilizing of ESPI - Electronic Speckle Pattern Interferometry for system Q-100 application for strain and stress analysis on surface of flat specimens predominantly loaded by shear deformation.
Matúš KALINA +2 more
doaj +1 more source
Visualization of exhaled breath by transmission electronic speckle pattern interferometry.
Applied Optics, 2020 A method for visualizing the air flow from the mouths of vocalists and wind musical instruments is presented. The method is based on a modification of electronic speckle pattern interferometry that incorporates the interference of a transmitted object ...
T. Moore
semanticscholar +1 more source
Applied Sciences, 2020 This paper presents a new processing method for denoising interferograms obtained by digital holographic speckle pattern interferometry (DHSPI) to serve in the structural diagnosis of artworks.
Ketao Yan +4 more
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Nuclear Engineering and Technology, 2016 Most manufacturing processes, including welding, create residual stresses. Residual stresses can reduce material strength and cause fractures. For estimating the reliability and aging of a welded structure, residual stresses should be evaluated as ...
Kyeongsuk Kim, Hyunchul Jung
semanticscholar +3 more sources
Fracture and Structural Integrity, 2021 Experimental method for a characterization of high-cycle fatigue evolution of residual stress near cold-expanded hole is developed and implemented. The technique is based on simultaneous measurements of deformation response to narrow notch, inserted in ...
S. I. Eleonsky +4 more
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espiownage: Tracking Transients in Steelpan Drum Strikes Using Surveillance Technology [PDF]
, 2021 We present an improvement in the ability to meaningfully track features in high speed videos of Caribbean steelpan drums illuminated by Electronic Speckle Pattern Interferometry (ESPI). This is achieved through the use of up-to-date computer vision libraries for object detection and image segmentation as well as a significant effort toward cleaning the
arxiv +1 more source
An Integrated Method for the Vibroacoustic Evaluation of a Carbon Fiber Bouzouki
Applied Sciences, 2023 An integrated method, which combines Electronic Speckle Pattern Interferometry, impulse response measurements, finite element method simulations, and psychoacoustic tests, is proposed to evaluate the vibroacoustic behavior of a carbon fiber bouzouki ...
Spyros Brezas +16 more
doaj +1 more source
3D stochastic interferometer detects picometer deformations and minute dielectric fluctuations of its optical volume [PDF]
, 2021 Optical interferometry has proven extremely powerful to investigate some of the most fundamental laws of physics, using light with very precisely controlled geometry. In the past few decades, various speckle metrology methods have emerged to harness the interferometric properties of strongly disordered light instead, using time-domain analysis of ...
arxiv +1 more source
Electronic shearography: current capabilities, potential limitations, and future possibilities for industrial nondestructive inspection [PDF]
, 1993 Image-shearing speckle pattern interferometry, more commonly referred to as ‘shearography’, is a full-field, laser-based interferometric technique first developed for applications in experimental mechanics [1,2].
Deaton, John, Jr., Rogowski, Robert S.
core +4 more sources