Results 11 to 20 of about 6,641 (217)
Demonstration of a family of X-ray dark-field retrieval approaches on a common set of samples. [PDF]
J Synchrotron RadiatThis study aims to guide users of dark‐field imaging in selecting the most suitable technique for their imaging goals. To this end, we provide a summary table and highlight opportunities for future research into the sources of dark‐field contrast across emerging methods.There are various imaging setups capable of capturing dark‐field images, each with ...
Alloo SJ +5 more
europepmc +2 more sources
Curvy Surface Reconstruction. [PDF]
Adv Sci (Weinh)This review introduces the concept of “general curvy surface reconstruction,” which incorporates both geometric and physical dimensions, representing an upgrade over conventional geometric reconstruction that focuses solely on spatial relationships. Particular emphasis is placed on the emerging opportunities enabled by advanced measurement techniques ...
Shang C +8 more
europepmc +2 more sources
Авіаційно-космічна техніка та технологія, 2021 The paper notes the wide possibilities and high efficiency of vibration diagnostics of parts and assemblies of power units by the method of electronic speckle interferometry (ESI), shows the feasibility of developing and improving methods for obtaining ...
Михаил Романович Ткач +5 more
doaj +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
doaj +1 more source
Extended-range temporal electronic speckle pattern interferometry [PDF]
Applied Optics, 2002 In recent years the availability of high-speed digital video cameras has motivated the study of electronic speckle pattern interferometry (ESPI) in the time domain. To this end a properly sampled temporal sequence of N-fringe patterns is used to analyze the temporal experiment.
Quiroga Mellado, Juan Antonio +2 more
openaire +4 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
doaj +1 more source
Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry
Nuclear Engineering and Technology, 2015 Background: Residual stress always exists on any kind of welded area. This residual stress can cause the welded material to crack or fracture. For many years, the hole-drilling method has been widely used for measuring residual stress.
Kyeongsuk Kim +3 more
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Digital Double-Pulse Holographic Interferometry for Vibration Analysis
Shock and Vibration, 1996 Different arrangements for double-pulsed holographic and speckle interferometry for vibration analysis will be described. Experimental results obtained with films (classical holographic interferometry) and CCD cameras (digital holographic interferometry)
H.J. Tiziani, G. Pedrini
doaj +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
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Michelson Interferometry with the Keck I Telescope [PDF]
, 2000 We report the first use of Michelson interferometry on the Keck I telescope for diffraction-limited imaging in the near infrared JHK and L bands. By using an aperture mask located close to the f/25 secondary, the 10 m Keck primary mirror was transformed ...
Buscher D. +22 more
core +2 more sources