Shearography - Wikipedia
Shearography or Speckle pattern shearing interferometry is a measuring and testing method similar to holographic interferometry. It uses coherent light or coherent soundwaves [1] to provide information about the quality of different materials in nondestructive testing, strain measurement, and vibration analysis.
What is Shearography? - TWI
Shearography, also known as speckle pattern shearing interferometry, is a method for measuring and detecting a range of different defects on metallic and composite materials.
Shearography - an overview | ScienceDirect Topics
Shearography is an optical method which uses speckle shearing interferometry to measure displacement gradients at the surface of a structure. The speckle patterns produced with the component in stressed and unstressed states are subtracted and the differences reveal changes in displacement gradient.
Shearography - SpringerLink
Jul 13, 2019 · Shearography, or speckle pattern shearing interferometry, is an interferometric technique for full-field, non-contact measurement of the first derivative of surface deformation, which is strain information. It was originally developed to overcome several limitations of holography by eliminating the reference beam.
Shearography in Non-destructive Testing - OnestopNDT
Nov 30, 2023 · Shearography, an advanced Non-destructive Testing (NDT) method, is a technique that detects defects in materials without causing damage. It's widely employed by NDT Technicians to assess the integrity of various structures and components.
Shearography and its applications – a chronological review
Jan 14, 2022 · Shearography: A technique for non-destructive testing. Shearography is a displacement gradient sensitive, full-field optical technique that is resilient to environmental disturbances and vibrations and is capable to examine large structures. It can be used on shopfloor as well in field.
Shearography: An optical measurement technique and …
Apr 21, 2005 · Shearography is a laser-based technique for full-field, non-contacting measurement of surface deformation (displacement or strain). It was developed to overcome several limitations of holography by eliminating the reference beam.
Shearography Technology and Applications: A Review
Aug 25, 2010 · Shearography is a full-field speckle interferometric technique used to determine surface displacement derivatives. For an interferometric technique, shearography is particularly resilient to ...
Shearography technology and applications: a review
Aug 25, 2010 · Shearography is a full-field speckle interferometric technique used to determine surface displacement derivatives. For an interferometric technique, shearography is particularly resilient to environmental disturbances and has hence become an invaluable measurement tool outside of the optics laboratory.
Measurement Principles of Shearography - Dantec Dynamics
Measurement Principles of Shearography. Laser Shearography is a Non-Destructive Testing (NDT) technique used to reveal sub-surface defects in structures. When a load or stress (i.e. thermal, vacuum, vibration, acoustic, or mechanical excitation) is applied to a surface, the surface above a defect will deform comparatively more than the parent ...