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This work reports the simultaneous use of electrical impedance spectroscopy and fiber Bragg grating (FBG) refractive index sensing in the estimation of the main components of specific fuel mixtures. Fuel samples containing gasoline, dehydrated ethanol, diesel, and kerosene were analyzed. Electrical impedance spectra and FBG sensor signals were registered for each mixture. Artificial Neural Networks...
Fiber Bragg grating (FBG) spectrometric interrogation is widely used in strain, temperature, and refractive index sensing, where the acquired FBG sensor reflected signal has the spectrum peak monitored to infer a physical quantity. This monitoring, or peak detection, is subject to noise and different types of distortion, and many applications require the preprocessing of the signals to achieve the...
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