Contouring by electronic speckle pattern interferometry employing dual beam illumination
Reads0
Chats0
TLDR
The sensitivity and the orientation of the contour planes are analyzed and a novel method for tilting the planes of contours and experimental results incorporating phase shifting and fringe analysis are presented.Abstract:
In this paper we extend and study the method for generating contours of diffuse objects employing a dual beam illumination coupled with electronic speckle pattern interferometry. The sensitivity and the orientation of the contour planes are analyzed. A novel method for tilting the planes of contours and experimental results incorporating phase shifting and fringe analysis are also presented. The theoretical and the experimental results show good agreement.read more
Citations
More filters
Journal ArticleDOI
Overview of three-dimensional shape measurement using optical methods
TL;DR: An overview of 3-D shape measurement using various optical methods, and a focus on structured light tech- niques where various optical configurations, image acquisition technology, data postprocessing and analysis methods and advantages and limitations are presented.
Patent
Apparatus and methods for surface contour measurement
TL;DR: In this paper, two sources of radiation having a spectral distribution and being coherent with respect to one another, a control system for moving each of the sources relative to each other, a detector positioned at the point on the surface of the object to receive radiation, and a processor for receiving signals from the detector.
Journal ArticleDOI
Double-pulse electronic speckle interferometry for vibration analysis.
TL;DR: A double-pulse electronic-speckle-interferometry system that uses three directions of illumination and one direction of observation to record at the same time all the information necessary for the reconstruction of the three-dimensional deformation vector.
Journal ArticleDOI
Strain measurement by three-dimensional electronic speckle pattern interferometry: potentials, limitations, and applications
Lianxiang Yang,Andreas Ettemeyer +1 more
TL;DR: The newly developed 3-D ESPI technique allows rapid measurement of both the shape and the3-D deformation of complex industrial components and is well suited for the harsh environmental conditions often found in the real test world.
References
More filters
Book
Holographic and Speckle Interferometry: A Discussion of the Theory, Practice and Application of the Techniques
Robert Jones,Catherine Wykes +1 more
TL;DR: In this article, the authors present a technique for shape measurements using holographic and speckle pattern interferometry techniques, based on the concept of correlation interferometrics.
Journal ArticleDOI
Interferometric displacement measurement on scattering surfaces utilizing speckle effect
TL;DR: In this article, the distribution of intensity in the resultant pattern depends on the relative phases of the component patterns, and by measuring the correlation between the resultant patterns at two different times a change of relative phase is detected.
Journal ArticleDOI
Electronic speckle pattern interferometry
TL;DR: In this article, the Lougborough group in England, headed by Butters and Leendertz, viewed the technique more as an off-spring of their speckle work and they also introduced the name ESPI as an abbreviation for electronic specckle pattern interferometry.
PatentDOI
Contour generation by wavefront reconstruction
TL;DR: In this paper, a method of producing a multiplehologram of an object communicating with other objects is described. But the method is not applicable to the case of a single person communicating with multiple people.
Journal Article
A new method for generating depth contours holographically
Jerry S. Zelenka,Jerry R. Varner +1 more
TL;DR: Employing holographic techniques, Hildebrand and Haines have demonstrated that a multiple frequency source can be used to generate range contours on or near an image and it is shown that contours can be generated over much larger surfaces.
Related Papers (5)
Holographic and Speckle Interferometry: A Discussion of the Theory, Practice and Application of the Techniques
Robert Jones,Catherine Wykes +1 more