Wideband Fiber Bragg Grating Accelerometer Suitable for Health Monitoring of Electrical Machines

Autor:	Somnath Bandyopadhyay, Palas Biswas, Nandini Basumallick, Sayantani Sarkar Bhattacharya, Tanoy Kumar Dey
Rok vydání:	2020
Předmět:	Cantilever Materials science Acoustics 010401 analytical chemistry Bandwidth (signal processing) Polymer composite materials Accelerometer 01 natural sciences Finite element method 0104 chemical sciences Fiber Bragg grating Normal mode Electrical and Electronic Engineering Wideband Instrumentation
Zdroj:	IEEE Sensors Journal. 20:14865-14872
ISSN:	2379-9153 1530-437X
DOI:	10.1109/jsen.2020.3011414
Popis:	A fiber Bragg grating (FBG) accelerometer suitable for health monitoring of electrical machines has been proposed. A polymer composite material is used to design the cantilever of the accelerometer. Thus it is ensured that there are no conducting parts in the accelerometer. Detailed finite element analysis of the cantilever is done to optimize the sensitivity and the resonant frequency. The sensitivity is significantly improved compared to the conventional FBG accelerometer having similar bandwidth of operation. Two different configurations, one having sensitivity 14.4 pm/g with resonant frequency 444 Hz, and the other having sensitivity 7.5 pm/g with resonant frequency 940 Hz have been designed and fabricated. The wide band optical accelerometers will enable monitoring of vibration modes of critical components of electrical machines and more importantly using commercially available standard FBG interrogators, instead of using any complex interrogation techniques. A good match between the simulation and experimental results was observed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36fe3598046031e6584516ca90898c6e https://doi.org/10.1109/jsen.2020.3011414 Zobrazit plný text záznamu