Abstract
A new calibration procedure for phase shift moire interferometry is proposed. The method does not ask for a high precision machined calibration object and makes use only of the moire setup itself. The procedure is fast and fully automatic. The fringe plane distance λ was determined with a precision of 1.3%. We present control measurements on a plane surface and a perfect sphere confirming the value and the precision of λ.
© 1990 Optical Society of America
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