With the application of multiwavelength digital holography in rough environments such as machine tools, we cannot rely on the complete absence of vibrations. The evaluation of temporal phase-shifting in sections allows to determine and take into account random sub-wavelength tilt of the sensor with respect to a work piece. In this regard, measurements inside a machine tool are evaluated and discussed.
With the application of multiwavelength digital holography in rough environments such as machine tools, we cannot rely on the complete absence of vibrations. The evaluation of temporal phase-shifting in sections allows to determine and take into account random sub-wavelength tilt of the sensor with respect to a work piece. In this regard, measurements inside a machine tool are evaluated and discussed.
During step-wise reconstruction (e.g. phase-shift extraction) of multiwave length digital holographic measurements, multiple criteria for detection of disturbances allow to evaluate the quality of recorded interferograms. Noisy interferograms can be discarded and re-recorded if necessary.
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