Simultaneous measurement of axial strain, temperature, and transverse load by a superstructure fiber grating.
A novel and simple fiber-optic sensor based on a superstructure fiber grating for simultaneous measurement of temperature, axial strain, and transverse load is proposed and demonstrated. By measurement of the shift and split of broadband and narrow-band loss peaks, one can determine the temperature, axial strain, and transverse load simultaneously over the ranges 0-140 degrees , 0-1200muepsilon, and 0-0.3 kg/mm, respectively.
Chi
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H
Tao
X M
XM
Yang
D X
DX
Chen
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KS