Abstract

SVYRYD, V; SOLIS OSORNO, N.N  and  ENRIQUEZ SALAZAR, Ma. E. An analysis of a displacement sensor based on optical fibers. Rev. mex. fis. [online]. 2006, vol.52, suppl.2, pp.61-63. ISSN 0035-001X.

In this work, the results of the theoretical analysis, computational simulation, and experimental study of a displacement sensor transfer function are presented. This intensity-based sensor is composed of two elements (two aligned multimode fibers or one fiber and one mirror) which move longitudinally. With the use of a geometrical approximation, we have managed to express the sensor's transference as a function of the distance with only one analytical equation, valid for both near-field and far-field zones. The results of this theoretical analysis coincide with the computational simulation and agree with experimental data.

Keywords : Displacement optical fiber sensor; transfer function.