Journal ArticleDOI
Recent developments in digital speckle pattern interferometry
TLDR
This poster presents a poster presenting a probabilistic procedure to constrain the response of the immune system to chemotherapy-like injuries in mice.About:
This article is published in Optics and Lasers in Engineering.The article was published on 2003-11-01. It has received 40 citations till now. The article focuses on the topics: Electronic speckle pattern interferometry & Speckle pattern.read more
Citations
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Journal ArticleDOI
Direct measurement of strain distribution along a wood bond line. Part 1: Shear strain concentration in a lap joint specimen by means of electronic speckle pattern interferometry
TL;DR: In this paper, 3D electronic speckle pattern interferometry (ESPI) measurements were used during tensile shear experiments to observe full-field in-plane and out-of-plane deformation of lap joint samples and to detect strain concentrations in the vicinity of glue lines.
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Biomechanics of a branch – stem junction in softwood
TL;DR: In this article, the authors measured the strain field in a mechanically loaded Norway spruce branch-stem junction by means of electronic speckle pattern analysis and compared the results with strain distribution in a polyester cast of identical shape as the branch and a simplified polyester model consisting of two halfcylinders.
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Mechanism of stress transfer in a single wood fibre-LDPE composite by means of electronic laser speckle interferometry
TL;DR: In this article, the distribution of shear strains at the interface along the fibre length measured by ESPI corresponds well to classical shear-lag theory, and it is concluded that ESPI is a powerful tool for the unravelling of composite micromechanics.
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A dual-function ESPI system for the measurement of out-of-plane displacement and slope
TL;DR: In this paper, a dual-function ESPI system is developed for the measurement of out-of-plane displacement and its slope change and a difference-ofphase method with a five-step algorithm is used for speckle fringe analysis.
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Denoising in digital speckle pattern interferometry using wave atoms
TL;DR: An effective method for speckle noise removal in digital Speckle pattern interferometry is presented, which is based on a wave-atom thresholding technique that improves the sparse representation of fringe patterns when compared with traditional expansions.
References
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Journal ArticleDOI
Electronic shearography applied to static and vibrating objects
TL;DR: In this paper, an optical shearography configuration is presented which can be used for the measurement of slope change for static and vibrating objects in real time, where displacement and vibration amplitude fields are extracted from the shear data.
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Dual in-plane electronic speckle pattern interferometry system with electro-optical switching and phase shifting
TL;DR: A dual in-plane electronic speckle pattern interferometry system has been developed for in situ measurements, and the overall system is controlled by advanced software, which allows switching between the two perpendicular planes in quasi real time.
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Electronic speckle pattern shearing interferometer using holographic gratings
Charles Joenathan,Lutz Buerkle +1 more
TL;DR: In this article, a holographic grating placed in front of the ground glass screen is used to shear the two images and to introduce phase stepping, and two identical holographic gratings separated by a disentance introduce shearing and the distance between two gratings can be used to control the size of shearing.
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Speckle interferometry for highly localized displacement fields
TL;DR: In this article, a method of obtaining phase fringe patterns of improved quality using electronic speckle pattern interferometry (ESPI) is complemented by new equations governing the displacement sensitivity if asymmetric illumination is used.