Abstract
The integration of two automated systems of photoelastic analysis has been performed. This combines the results obtained with a full-field polariscope based on phase-stepping techniques with those from spectral contents analysis. The latter technique identifies the absolute value of the isochromatic parameter at a point. This information is used to calibrate maps of relative retardation produced by the phase-stepping method. Thus, completely automatic determination of calibrated isochromatic and isoclinic patterns in photoelastic specimens is achieved. The evaluation of the whole system, establishing limits of validity and influences of parameters, is performed. Results show that the analysis carried out with the combined system, incurred errors no longer than those of each system working independently.
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