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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 11 — Jun. 1, 1989
  • pp: 2170–2175

Holographic contour and deformation measurement using a 1.4 million element detector array

Katherine Creath  »View Author Affiliations


Applied Optics, Vol. 28, Issue 11, pp. 2170-2175 (1989)
http://dx.doi.org/10.1364/AO.28.002170


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Abstract

Holographic interferometry enables the measurement of object deformations due to stress induced by pressure, heat, or applied force and the measurement of surface shape. Real-time double-exposure holographic interferometry and phase-measurement interferometry have been combined to measure both static changes in objects and their shape. However, the number of detector points available has limited the number of fringes which can be measured. This paper shows results of measurements using a Videk Megaplus camera with 1320 × 1035 detector elements to enable measurements with high fringe densities. Results of measurement of object deformation and object shape show wavefronts with fringe densities up to 500 fringes per diameter can be measured with an rms repeatability of λ/50.

© 1989 Optical Society of America

History
Original Manuscript: June 6, 1988
Published: June 1, 1989

Citation
Katherine Creath, "Holographic contour and deformation measurement using a 1.4 million element detector array," Appl. Opt. 28, 2170-2175 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-11-2170

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