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RSS FeedsSensors, Vol. 18, Pages 1597: Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation (Sensors)

 
 

21 may 2018 06:01:44

 
Sensors, Vol. 18, Pages 1597: Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation (Sensors)
 


Demodulation is a bottleneck for applications involving fiber Bragg gratings (FBGs). An overlap spectrum FBG sensor based on a light power demodulation method is presented in this paper. The demodulation method uses two chirp FBGs (cFBGs) of which the reflection spectra partially overlap each other. The light power variation of the overlap spectrum can be linked to changes in the measurand, and the sensor function can be realized via this relationship. A temperature experiment showed that the relationship between the overlap power spectrum of the FBG sensor and temperature had good linearity and agreed with the theoretical analysis.


 
38 viewsCategory: Chemistry, Physics
 
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Sensors, Vol. 18, Pages 1596: An Energy Balanced and Lifetime Extended Routing Protocol for Underwater Sensor Networks (Sensors)
 
 
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