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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Cerma 2009 - Electronics Robotics And Automotive Mechanics Conference Título del capítulo: Optical-Fiber Refractometric Sensor with Semi-Cylindrical Optical Detection Element for Measuring the Level of Gasoline
We present a novel optical fiber refractometric sensor with
semi-cylindrical optical detection element. A pair of the multimode
optical fibers is attached symmetrically to the element's flat plane.
The optical coupling of the two fibers due to internal reflection of
light from the element's cylindrical surface is sensitive to the
refractive index of the surrounding medium. We exploit several internal
reflections in series and partial focusing of the optical beam by the
element's cylindrical surface to achieve enhanced sensitivity to the
refractive index of the surrounding medium and reduced intrinsic optical
loss in the transducer. We show theoretically that the transducer, in
particular, can discriminate between the air and gasoline. We also
present experimental data obtained with plastic detection element, which
confirm our theoretical results. A vertical array of such transducers
employing a relatively long single semi-cylindrical detection element
can access the level of gasoline in automobile tanks.
Entidades citadas de la UNAM:
Fuente:
ISBN: 9780769537993 Editorial: IEEE Computer Society