Interrogation technique using a novel spectra bandwidth measurement method with a blazed FBG and a fiber-optic array for an FBG displacement sensor
Citation
Zhao, Y.; Huang, H.; Wang, Q. Interrogation technique using a novel spectra bandwidth measurement method with a blazed FBG and a fiber-optic array for an FBG displacement sensor. Sensors and Actuators A: Physical 2011, 165, 185-188
Keywords
- Displacement measurement
- Fiber Bragg grating sensor
- Spectra bandwidth
- Fiber optic array
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Blazed Fiber Bragg Grating (blazed FBG)
- Double-arched beam
- Interrogation technique
- Infrared Linear Detector (IRLD)
- Wavelength shift
- Cross-sensitivity
- Radiation angle
- Light spot size
Brief
The article presents a novel displacement sensor that utilizes a double-arched beam FBG and a fiber optic array to measure displacement by detecting changes in the reflective spectra bandwidth of the FBG rather than the traditional wavelength shift.
Summary
This article presents a new way to measure displacement using a fiber Bragg grating (FBG) attached to a double-arched beam. Instead of the usual method of measuring wavelength shifts, this technique uses a blazed FBG and a fiber optic array to measure the broadening of the FBG's reflective spectra caused by the displacement. This approach is potentially less sensitive to temperature and cost-effective.
Origin: https://sci.bban.top/pdf/10.1016/j.sna.2010.10.007.pdf#
