Results 31 to 40 of about 107,717 (203)
Digital Double-Pulse Holographic Interferometry for Vibration Analysis
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
THERMAL DEFORMATION WAVES IN HETEROGENEOUS MATERIALS [PDF]
In the paper, a stress-strain detection method is used by correlation point interferometry, inwhich the resolution of the recording surface changes has been significantly (ten times) improved. This result was obtained
V. Zhukovsky +3 more
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Surface profile measurement using spatially dispersed short coherence interferometry [PDF]
Improved online techniques for surface profile measurement can be beneficial in many high/ultra-precision manufacturing in terms of enabling manufacture and reducing costs.
Martin, Haydn +2 more
core +1 more source
Effect of the Speckle Size on the Quality of Speckle Pattern in DSPI System
In order to detect the deformation and strain of materials accurately, the key is to obtain the phase information caused by dynamic loading in digital speckle pattern interferometry (DSPI).
Zhisong Li +5 more
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Computational de-noising based on deep learning for phase data in digital holographic interferometry
This paper presents a deep-learning-based algorithm dedicated to the processing of speckle noise in phase measurements in digital holographic interferometry.
Silvio Montresor +3 more
doaj +1 more source
Fast surface measurement using wavelength scanning interferometry with compensation of environmental noise [PDF]
We introduce a new optical interferometry system for fast areal surface measurement of microscale and nanoscale surfaces that are immune to environmental noise.
Gao, F. +5 more
core +1 more source
The retroreflectors in EAST (Experimental Advanced Superconducting Tokamak) are important optical components of Polarimeter-Interferometer (POINT) system, working as the first mirrors to reflect the incident far-infrared laser.
Hongbei WANG +6 more
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Comparison study of algorithms and accuracy in the wavelength scanning interferometry [PDF]
Wavelength scanning interferometry (WSI) can be used for surface measurement with discontinuous surface profiles by producing phase shifts without any mechanical scanning process.
Gao, F. +4 more
core +1 more source
Phase extraction in dynamic speckle interferometry: proposal of a road map
Of all the two-beam interference patterns, the ones obtained in speckle interferometry (SI) are the most difficult to be phase-demodulated. Many solutions exist in classical smooth-wave interferometry and alike techniques, both in static and dynamic ...
Jacquot P., Equisa S.
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The dark-field signal measures the small-angle scattering strength and provides complementary diagnostic information. This is of particular interest for lung imaging due to the pronounced small-angle scatter from the alveolar microstructure.
Sebastian Meyer +4 more
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