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Updated: Jun 15, 2026

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
Published on: May 23, 2017
Vibration analysis of plates by a time-averaged projection-moiré method
Abstract:
A time-averaged moiré principle is described that is appropriate for vibration analysis of plates. If the projected grating, deformed by the vibrating object, is superposed upon a reference grating in the area of the screen of the projector and observed on a ground-glass plate for more than one period, moiré patterns can be seen without the interfering gratings, depicting the nodal lines and the slope contours in the extreme deflected positions of the plates.
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