DocumentCode
3179027
Title
An adaptive line enhancement technique for Fiber Bragg grating-based acoustic emission sensor
Author
Sharma, Anshuman ; Achar, Harish ; Srinivasan, Balaji
Author_Institution
Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India
fYear
2012
fDate
22-25 July 2012
Firstpage
1
Lastpage
5
Abstract
We report on the use of an adaptive signal processing technique called Adaptive Line Enhancement with Coherent Accumulation (ALECA) for improving the time domain signals captured from a Fiber Bragg grating-based acoustic emission sensor. The acoustic emission sensor is able to detect signals from a few kHz to 1 MHz with a sensitivity of 1 micro strain. We demonstrate the usefulness of ALECA for extracting the time domain signals from standard ball drop tests.
Keywords
Bragg gratings; acoustic emission; adaptive signal processing; fibre optic sensors; optical signal detection; ALECA; adaptive line enhancement; adaptive signal processing; ball drop tests; coherent accumulation; fiber Bragg grating based acoustic emission sensor; signal detection; time domain signals; Acoustic emission; Fiber gratings; Noise measurement; Signal to noise ratio; Training;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing and Communications (SPCOM), 2012 International Conference on
Conference_Location
Bangalore
Print_ISBN
978-1-4673-2013-9
Type
conf
DOI
10.1109/SPCOM.2012.6290221
Filename
6290221
Link To Document