Title :
Phase stepping in projected-fringe fibre-based moire interferometry
Author :
Valera, J.D. ; Jones, J.D.C.
Author_Institution :
Dept. of Phys., Heriot-Watt Univ., Edinburgh, UK
Abstract :
An optical fibre based moire interferometer for surface shape measurement is described. The technique uses an optical fibre interferometer to project interference fringes and is readily phase stepped without mechanical movement of components.
Keywords :
fibre optic sensors; light interferometers; light interferometry; moire fringes; surface topography measurement; fibre-based moire interferometry; interference fringes; optical fibre interferometer; projected-fringe; surface shape measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931191
