12 August 2008 Fiber Bragg grating deflection sensor
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Proceedings Volume 7099, Photonics North 2008; 709929 (2008) https://doi.org/10.1117/12.806927
Event: Photonics North 2008, 2008, Montréal, Canada
A new fiber-optic sensor system consisting of a fiber Bragg grating (FBG) cantilever as a transducer is proposed and demonstrated to realize simultaneous measurement of magnitude and direction of deflection. For the FBG mounted on a stainless steel cantilever, a change in the bending deflection gives rise to a monotonous shift in the Bragg resonance wavelength of the grating while the deflection direction results in either a red- or blue-shift in the Bragg wavelength due to a stretched or shrunk state of the grating. As an application of this deflection sensor, the water flow rate was measured, which showed good agreement with the theoretical analysis.
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Ping Lu, Ping Lu, Liqiu Men, Liqiu Men, Qiying Chen, Qiying Chen, } "Fiber Bragg grating deflection sensor", Proc. SPIE 7099, Photonics North 2008, 709929 (12 August 2008); doi: 10.1117/12.806927; https://doi.org/10.1117/12.806927

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