Modern approaches for absolute phase measurement

Wolfgang Osten; Peter Andrae; Werner Nadeborn; Werner P. O. Jueptner

doi:10.1117/12.226744

10 November 1995 Modern approaches for absolute phase measurement

Wolfgang Osten, Peter Andrae, Werner Nadeborn, Werner P. O. Jueptner

Proceedings Volume 2647, International Conference on Holography and Correlation Optics; (1995) https://doi.org/10.1117/12.226744
Event: International Conference on Holography and Correlation Optics, 1995, Chernivsti, Ukraine

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.

Citation Download Citation

Wolfgang Osten, Peter Andrae, Werner Nadeborn, and Werner P. O. Jueptner "Modern approaches for absolute phase measurement", Proc. SPIE 2647, International Conference on Holography and Correlation Optics, (10 November 1995); https://doi.org/10.1117/12.226744

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