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Fibre Bragg grating based accelerometer with extended bandwidth

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Fibre Bragg grating based accelerometer with extended bandwidth
 
Creator Basumallick, Nandini
Biswas, Palas
Chakraborty, Rajib
Chakraborty, Sushanta
Dasgupta, Kamal
Bandyopadhyay, Somnath
 
Subject Processing Science
 
Description We have shown experimentally that the operable bandwidth of a fibre Bragg grating (FBG) based accelerometer can be extended significantly, without compromising its sensitivity, using a post-signal processing technique which involves frequency domain weighting. It has been demonstrated that using the above technique acceleration can be correctly interpreted even when the operating frequency encroaches on the region where the frequency response of the sensor is non-uniform. Two different excitation signals, which we often encounter in structural health monitoring applications, e.g. (i) a signal composed of multi-frequency components and (ii) a sinusoidal excitation with a frequency sweep, have been considered in our experiment. The results obtained have been compared with a piezo accelerometer.
 
Publisher Institute of Physics Publishing
 
Date 2016-03
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/3667/1/somnath.pdf
Basumallick, Nandini and Biswas, Palas and Chakraborty, Rajib and Chakraborty, Sushanta and Dasgupta, Kamal and Bandyopadhyay, Somnath (2016) Fibre Bragg grating based accelerometer with extended bandwidth. Measurement Science and Technology, 27 (3). Article No-035008. ISSN 0957-0233
 
Relation http://cgcri.csircentral.net/3667/