We present a method of error analysis that can be applied for
phase-measuring algorithms applied to photoelasticity. We calculate
the contributions to the measurement error of the different elements of
a circular polariscope as perturbations of the Jones matrices
associated with each element. The Jones matrix of the real
polariscope can then be calculated as a sum of the nominal matrix and a
series of contributions that depend on the errors associated with each
element separately. We apply this method to the analysis of
phase-measuring algorithms for the determination of isoclinics and
isochromatics, including comparisons with real measurements.
© 1998 Optical Society of America
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