MANIPULATION OF SPECKLE FRINGES FOR NONDESTRUCTIVE TESTING OF DEFECTSIN COMPOSITES

Authors
PAOLETTI D SPAGNOLO GS ZANETTA P FACCHINI M ALBRECHT D
Citation
D. Paoletti et al., MANIPULATION OF SPECKLE FRINGES FOR NONDESTRUCTIVE TESTING OF DEFECTSIN COMPOSITES, Optics and Laser Technology, 26(2), 1994, pp. 99-104
Citations number
15
Categorie Soggetti
Optics,"Physics, Applied
Journal title
Optics and Laser Technology → ACNP
ISSN journal
00303992
Volume
26
Issue
2
Year of publication
1994
Pages
99 - 104
Database
ISI
SICI code
0030-3992(1994)26:2<99:MOSFFN>2.0.ZU;2-N
Abstract
A digital speckle pattern interferometer with optical fibres is propos ed for composite materials diagnostics in an operative environment. De tection of a variety of flaws, such as disbonds, delaminations and cra cks in aircraft components, is reported. Additional fringes are introd uced for linearizing the fringe pattern and obtaining quantitative def ormation measurements by Fourier transform analysis.