Optimizing Algorithm for Existing Fiber-Optic Displacement Sensor Performance
Zeina Elrawashdeh,
Christine Prelle,
Frédéric Lamarque,
Philippe Revel,
Stéphane Galland
Affiliations
Zeina Elrawashdeh
Institut Catholique d’Arts et Métiers (ICAM), Site of Grand Paris Sud, 77127 Lieusaint, France
Christine Prelle
Royallieu Research Center, Roberval Laboratory (Mechanics, Energy and Electricity), University of Technology of Compiègne, Rue Roger Couttolenc, 60200 Compiègne, France
Frédéric Lamarque
Royallieu Research Center, Roberval Laboratory (Mechanics, Energy and Electricity), University of Technology of Compiègne, Rue Roger Couttolenc, 60200 Compiègne, France
Philippe Revel
Royallieu Research Center, Roberval Laboratory (Mechanics, Energy and Electricity), University of Technology of Compiègne, Rue Roger Couttolenc, 60200 Compiègne, France
Stéphane Galland
Université de Technologie de Belfort Montbéliard UTBM, Laboratoire Connaissance et Intelligence Artificielle CIAD UR 7533, 90010 Belfort, France
This paper describes the optimal design of a miniature fiber-optic linear displacement sensor. It is characterized by its ability to measure displacements along a millimetric range with sub-micrometric resolution. The sensor consists of a triangular reflective grating and two fiber-optic probes. The measurement principle of the sensor is presented. The design of the sensor’s triangular grating has been geometrically optimized by considering the step angle of the grating to enhance the sensor’s resolution. The optimization method revealed a global optimum at which the highest resolution is obtained.
