A novel TV holography method is proposed for parallel evaluation of in-plane and out-of-plane deformation fields. The method permits a trade-off between in-plane and out-of-plane measuring sensitivity. A four-exposure, four-frame phase shifting technique is used in the experiments; the experimental results for an aluminum specimen subjected to both rotation in its own plane and a bending couple load at the center are presented.
© 2000 Optical Society of America
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
Nandigana Krishna Mohan, Angelica Andersson, Mikael Sjödahl, and Nils-Erik Molin, "Optical Configuration for TV Holography Measurement of In-Plane and Out-of-Plane Deformations," Appl. Opt. 39, 573-577 (2000)