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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 29 — Oct. 10, 2006
  • pp: 7590–7596

Use of dynamic electronic speckle pattern interferometry with the Hilbert transform method to investigate thermal expansion of a joint material

Violeta Dimitrova Madjarova, Hirofumi Kadono, and Satoru Toyooka  »View Author Affiliations


Applied Optics, Vol. 45, Issue 29, pp. 7590-7596 (2006)
http://dx.doi.org/10.1364/AO.45.007590


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Abstract

A dynamic electronic speckle pattern interferometry method is applied to investigate thermal expansion of a joint material (ceramic–stainless steel) as a practical industrial object. The speckle interference signal is considered in the temporal domain and the phase is analyzed by the Hilbert transform method. Errors caused by the bias and modulation variations over the phase values are first examined by numerical simulation. Two experiments are performed with in-plane and out-of-plane sensitive systems to study the 3D deformation field thoroughly. The deformation field showed clearly the difference between the thermal expansions of the stainless steel and ceramic. It was also revealed that the boundary of materials and its vicinity suffer very large thermal strain due to the significantly large difference in the linear coefficient of thermal expansions.

© 2006 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry

History
Original Manuscript: January 30, 2006
Revised Manuscript: May 28, 2006
Manuscript Accepted: June 7, 2006

Citation
Violeta Dimitrova Madjarova, Hirofumi Kadono, and Satoru Toyooka, "Use of dynamic electronic speckle pattern interferometry with the Hilbert transform method to investigate thermal expansion of a joint material," Appl. Opt. 45, 7590-7596 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-29-7590

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