Transient Deformation Measurement by Double-Pulsed-Subtraction TV Holography and the Fourier Transform Method
Applied Optics, Vol. 37, Issue 16, pp. 3440-3446 (1998)
http://dx.doi.org/10.1364/AO.37.003440
Acrobat PDF (740 KB)
Abstract
We report the measurement of transient bending waves with double-pulsed-subtraction TV holography. The correlation fringe patterns are automatically quantitatively analyzed by the application of Fourier methods. A novel optical setup with two different object-beam optical paths is demonstrated for the generation of carrier fringes. The proposed system is highly immune to environmental disturbances because the optical setup imposes no lower limit on the time separation between laser pulses. One removes the linear phase distribution due to the spatial carrier in the spatial domain by subtracting the phase of the undeformed carrier fringes from the phase of the modulated fringes. Experimental results obtained with an aluminum plate excited by the impact of a piezoelectric translator are presented.
© 1998 Optical Society of America
[Optical Society of America ]
OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(090.0090) Holography : Holography
(120.3180) Instrumentation, measurement, and metrology : Interferometry
Citation
Antonio Fernández, Jesús Blanco-García, Ángel F. Doval, Javier Bugarín, Benito V. Dorrío, Carlos López, José M. Alén, Mariano Pérez-Amor, and José L. Fernández, "Transient Deformation Measurement by Double-Pulsed-Subtraction TV Holography and the Fourier Transform Method," Appl. Opt. 37, 3440-3446 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-16-3440
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