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Updated: Jun 5, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
Published on: September 30, 2019
A simultaneous in- and out-of-plane displacement measurement method
Philip Siegmann1, Víctor Álvarez-Fernández, Francisco Díaz-Garrido
1Departamento de Teoría de la Señal y Comunicaciones, Universidad de Alcalá, Madrid, Spain. philip.siegmann@uah.es
Abstract:
A method is presented that allows real-time three-dimensional displacement maps to be obtained for deformable objects using a single color camera and a color fringe projector. The acquired images have speckle and fringe information embedded in them, which are separated using the R, G, and B color signals from a color CCD camera to permit the independent use of a two-dimensional digital image correlation to obtain the x- and y-direction displacements and fringe projection to obtain the displacement in the z direction.
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