scispace - formally typeset
Journal ArticleDOI

A dual-function ESPI system for the measurement of out-of-plane displacement and slope

TLDR
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.
About
This article is published in Optics and Lasers in Engineering.The article was published on 2006-06-01. It has received 33 citations till now. The article focuses on the topics: Shearography & Electronic speckle pattern interferometry.

read more

Citations
More filters
Journal ArticleDOI

Simultaneous measurement of out-of-plane displacement and slope using a multiaperture DSPI system and fast Fourier transform.

TL;DR: The simultaneous quantitative measurement of out-of-plane displacement and slope using the fast Fourier transform method with a single three-aperture digital speckle pattern interferometry (DSPI) arrangement is demonstrated.
Journal ArticleDOI

Slope measurement of a phase object using a polarizing phase-shifting high-frequency Ronchi grating interferometer

TL;DR: An interferometric method to measure the slope of phase objects is presented by implementing a polarizing phase-shifting cyclic shear interferometer coupled to a 4-f Fourier imaging system with crossed high-frequency Ronchi gratings.
Journal ArticleDOI

Measurement of small displacement based on surface plasmon resonance heterodyne interferometry

TL;DR: In this article, the authors proposed an optical method for measuring small displacements using the surface plasmon resonance (SPR) heterodyne interferometry, where a small displacement of the mirror will introduce a phasedifference variation between p - and s -polarizations of the light emerging from the SPR apparatus.
Journal ArticleDOI

Radial slope measurement of dynamic transparent samples

TL;DR: In this paper, a phase grating is used to replicate the interference patterns and phase shifts modulated by polarization, and an interferometric method to measure the radial slope of dynamic transparent samples is presented.
Journal ArticleDOI

Real-time dual-sensitive shearography for simultaneous in-plane and out-of-plane strain measurements.

TL;DR: A real-time, dual-sensitive shearography system using a single-wavelength laser was developed for simultaneous and dynamic in-plane and out-of-plane strain measurements and is capable of measuring crack-tip deformation fields quantitatively.
References
More filters
Journal ArticleDOI

Digital phase-shifting interferometry: a simple error-compensating phase calculation algorithm.

TL;DR: La difference de phase entre les 2 faisceaux interferant varie de maniere connue et on fait des mesures de the distribution d'intensite a travers la pupille correspondant a au moins 3 dephasages differents.
Book

Speckle Metrology

Sirohi
Book

Optical Measurement Techniques and Applications

TL;DR: In this article, Krishnaswamy et al. presented a survey of the optical metrology of engineering surfaces, focusing on the use of Holographic Interferometry in Nondestructive Measurement and Testing.
Journal ArticleDOI

Shearography: A novel and practical approach for nondestructive inspection

TL;DR: In this paper, an optical technique referred to as shearography for nondestructive inspection is presented, which reveals flaws in materials by looking for flaw-induced strain anomalies.
Related Papers (5)