Title :
Dynamic amplitude frequency characteristic of GMM based on optical fiber measurement technique
Author :
Xiong, Yanling ; Zhao, Hong ; Zhao, Haijun ; Xie, Qinye
Author_Institution :
Harbin Univ. of Sci. & Technol., Harbin, China
fDate :
July 28 2010-Aug. 1 2010
Abstract :
A FBG-GMM dynamic strain measurement setup with ferromagnetic circuit was established based on the magnetostriction characteristic of Giant magnetostrictive material (GMM) and the susceptibility of fiber Bragg grating (FBG) to strain. This system was constructed using the FBG dynamic strain demodulating scheme of optical filter linear sideband. The finite element analysis and experimental result show that the dynamic output of the GMM does not change with the frequency in the range of 50~1000Hz and the GMM can be used in dynamic measurement of low-frequency signal.
Keywords :
demodulation; fibre optic sensors; finite element analysis; giant magnetoresistance; magnetostriction; optical filters; strain sensors; GMM; dynamic amplitude frequency characteristic; dynamic strain measurement; ferromagnetic circuit; fiber Bragg grating; finite element analysis; giant magnetostrictive material; magnetostriction; optical fiber measurement; optical filter linear sideband; Frequency measurement; Harmonic analysis; Magnetic circuits; Magnetic hysteresis; Magnetostriction; Materials; Strain; Giant magnetostrictive material; amplitude frequency characteristic; fiber Bragg grating; optical filter;
Conference_Titel :
Laser Physics and Laser Technologies (RCSLPLT) and 2010 Academic Symposium on Optoelectronics Technology (ASOT), 2010 10th Russian-Chinese Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-5511-9
DOI :
10.1109/RCSLPLT.2010.5615286
