Title
A Fiber Bragg Grating Sensing Based Triaxial Vibration Sensor
Abstract
A fiber Bragg grating (FBG) sensing based triaxial vibration sensor has been presented in this paper. The optical fiber is directly employed as elastomer, and the triaxial vibration of a measured body can be obtained by two pairs of FBGs. A model of a triaxial vibration sensor as well as decoupling principles of triaxial vibration and experimental analyses are proposed. Experimental results show that: sensitivities of 86.9 pm/g, 971.8 pm/g and 154.7 pm/g for each orthogonal sensitive direction with linearity are separately 3.64%, 1.50% and 3.01%. The flat frequency ranges reside in 20-200 Hz, 3-20 Hz and 4-50 Hz, respectively; in addition, the resonant frequencies are separately 700 Hz, 40 Hz and 110 Hz in the x/y/z direction. When the sensor is excited in a single direction vibration, the outputs of sensor in the other two directions are consistent with the outputs in the non-working state. Therefore, it is effectively demonstrated that it can be used for three-dimensional vibration measurement.
Year
DOI
Venue
2015
10.3390/s150924214
SENSORS
Keywords
Field
DocType
fiber Bragg grating,triaxial,vibration sensor
Excited state,Optical fiber,Fiber Bragg grating,Decoupling (cosmology),Linearity,Electronic engineering,Engineering,Vibration,Elastomer,Resonance
Journal
Volume
Issue
ISSN
15
9.0
1424-8220
Citations 
PageRank 
References 
2
1.04
0
Authors
6
Name
Order
Citations
PageRank
tianliang li1297.12
Yuegang Tan264.76
Yi Liu383.06
yongzhi qu432.75
Mingyao Liu567.04
Zude Zhou624335.75