Double-L Cantilever-Based Fiber Bragg Grating Accelerometer

Parida, O P and Thomas, J and Nayak, J and Asokan, S (2019) Double-L Cantilever-Based Fiber Bragg Grating Accelerometer. In: IEEE Sensors Journal, 19 (23). pp. 11247-11254.

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Abstract

Optical accelerometers, especially the fiber Bragg grating accelerometers are the preferred sensors for vibration, and acceleration measurement in several fields of engineering. They are light, compact, immune to electromagnetic interference, and provide better noise immunity due to wavelength encoded nature of signal transduction. In the present work, analytical modeling, numerical simulation, fabrication, and characterization of a novel double-L cantilever based fiber Bragg grating accelerometer is presented. This design not only enhances the sensitivity in comparison to its single-L counterpart, but also provides selferature compensation. Modular design of the accelerometer provides flexibility in replacing specific components to achieve desired performance characteristics. Resonant frequency of 86 Hz, sensitivity of 406.7 pm/g with an excellent linearity of 99.86 , and small temperature sensitivity of 0.016 pm/°C have been demonstrated for the fabricated model. The FBG accelerometer has a linear operating range of ±6 g.

Item Type:	Journal Article
Publication:	IEEE Sensors Journal
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	Copyright of this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Acceleration measurement; Accelerometers; Electromagnetic pulse; Fibers; Nanocantilevers; Natural frequencies; Signal transduction, double-L cantilever; Fiber bragg grating accelerometer; Mechanical sensors; Modular designs; Optical accelerometer; Performance characteristics; Specific component; Temperature sensitivity, Fiber Bragg gratings
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	22 Jan 2020 11:29
Last Modified:	22 Jan 2020 11:29
URI:	http://eprints.iisc.ac.in/id/eprint/64371

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