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Título del libro: Proceedings Of The 2015 Argentine School Of Micro-Nanoelectronics, Technology And Applications, Eamta 2015
Título del capítulo: Modified optical fiber Bragg grating accelerometer

Autores UNAM:
GABRIEL EDUARDO SANDOVAL ROMERO;
Autores externos:

Idioma:
Inglés
Año de publicación:
2015
Palabras clave:

Accelerometers; Bragg gratings; Cantilever beams; Fibers; Frequency response; Nanocantilevers; Nanoelectronics; Natural frequencies; Optical fibers; Free end; Optic fiber; Surface-mounted; Fiber Bragg gratings


Resumen:

The paper presents an optical fiber Bragg grating (FBG) accelerometer, using a modified cantilever beam design to get the highest possible strain in the FBG and a wide natural frequency. This accelerometer modeled a system composed by a mass mounted at the free end of a cantilever beam, which is also attached to an optic fiber whose length is varied by the movement of the mass. The objective is to compare the measured deflection, natural frequency and sensitivity with the predicted ones. The sensitivity and frequency response range has been enhanced compared to the conventional cantilever designs: surface mounted, patch mounted FBG and L-shape. Achieving a sensitivity of about 330 pm/g and a natural frequency of 227.3 Hz. © 2015 IEEE.


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