Basumallick, Nandini and Biswas, Palas and Dasgupta, Kamal and Bandyopadhyay, Somnath (2013) Design optimization of fiber Bragg grating accelerometer for maximum sensitivity. Sensors and Actuators A-Physical, 194. pp. 31-39. ISSN 0924-4247

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Sensitivity of a cantilever-mass based fiber Bragg grating (FBG) accelerometer can efficiently be tailored by altering the distance between the axis of the FBG sensor to the neutral axis of the cantilever. To accomplish that in general, a backing patch is used to mount the FBG on the cantilever. A numerical method to quantify the influence of the material constant (Young's modulus) of the backing patch and its thickness on the sensitivity is presented in this paper. It is explicitly shown that for a specific patch material there is an optimum thickness for which the sensitivity happens to be the maximum. A good agreement between simulation and experimental results is obtained. Finally, it is demonstrated that a sensitivity similar to 1062 pm/g can be achieved, the enhancement almost by a factor of three as compared to that of the conventional cantilever-mass FBG accelerometer of similar bandwidth. (C) 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Processing Science
Divisions: Sensor and Actuator
Depositing User: Bidhan Chaudhuri
Date Deposited: 04 Sep 2013 09:15
Last Modified: 12 Mar 2016 16:29

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