Two-camera phase measurements using phase-stepped real-time holographic interferometry

Benjie Ovryn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A multiple detector method was developed to extend the capabilities of phase stepped, real-time holographic interferometry to measure two components of a displacement vector simultaneously. To test the method, two experiments were performed which measured the cantilever bending of a piezoelectric ceramic bimorph due to an applied voltage. For the first experiment, the optical axis of one of the cameras was perpendicular to the surface of the bimorph while the optical axis of the second camera formed an angle of 48° ± 1° with respect to the optical axis of the first camera. The bimorph was then rotated so that the angle between the optical axis of the first camera and the surface normal changed by 20° ± 1°. Both the out-of-plane (normal to the surface) and one of the in-plane (tangential) displacement components were resolved for each experiment and the results were compared with the known values.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsHalina Podbielska, Abraham Katzir
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Pages120-131
Number of pages12
ISBN (Print)0819411167
StatePublished - Dec 1 1993
EventHolography, Interferometry, and Optical Pattern Recognition in Biomedicine III - Los Angeles, CA, USA
Duration: Jan 17 1993Jan 19 1993

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1889
ISSN (Print)0277-786X

Other

OtherHolography, Interferometry, and Optical Pattern Recognition in Biomedicine III
CityLos Angeles, CA, USA
Period1/17/931/19/93

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Ovryn, B. (1993). Two-camera phase measurements using phase-stepped real-time holographic interferometry. In H. Podbielska, & A. Katzir (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 120-131). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1889). Publ by Society of Photo-Optical Instrumentation Engineers.