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

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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.

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 07 Nov 2016 11:41
Last Modified: 07 Nov 2016 11:41

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