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Proceedings Paper

Modern approaches for absolute phase measurement
Author(s): Wolfgang Osten; Peter Andrae; Werner Nadeborn; Werner P. O. Jueptner
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Paper Abstract

This paper deals with investigations of optical shape measurement and contouring techniques with respect to precise measuring of primary phase data and determination of the object shape. A robust procedure for the measurement of absolute phase values with high accuracy is presented. This procedure is based on a precision adapted control of the system parameters determining the orientation or frequency of the fringe pattern and the stepwise reconstruction of the continuous phase field without phase unwrapping. The determination of the control sequence is oriented on the phase measuring accuracy and the known limits of the absolute phase. Using these unambiguous measuring data the object shape and its coordinates can be determined.

Paper Details

Date Published: 10 November 1995
PDF: 12 pages
Proc. SPIE 2647, International Conference on Holography and Correlation Optics, (10 November 1995); doi: 10.1117/12.226744
Show Author Affiliations
Wolfgang Osten, Bremen Institute of Applied Beam Technology (Germany)
Peter Andrae, Bremen Institute of Applied Beam Technology (Germany)
Werner Nadeborn, Bremen Institute of Applied Beam Technology (Germany)
Werner P. O. Jueptner, Bremen Institute of Applied Beam Technology (Germany)


Published in SPIE Proceedings Vol. 2647:
International Conference on Holography and Correlation Optics
Oleg V. Angelsky, Editor(s)

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