Design of signal processing system for fiber Bragg grating current sensor

2010 ◽  
Author(s):  
Limin Zhao ◽  
Quankang Wei ◽  
Danping Jia ◽  
Beiyong Zeng
Keyword(s):  
Signal Processing ◽  
Fiber Bragg Grating ◽  
Processing System ◽  
Current Sensor ◽  
Bragg Grating ◽  
Signal Processing System

scholarly journals Characteristic Analysis and Experiment of Adaptive Fiber Optic Current Sensor Technology

2019 ◽  
Vol 9 (2) ◽  
pp. 333 ◽  
Author(s):  
Yansong Li ◽  
Weiwei Zhang ◽  
Xinying Liu ◽  
Jun Liu
Keyword(s):  
Signal Processing ◽  
Output Signal ◽  
Fiber Optic ◽  
Optical Glass ◽  
Processing System ◽  
Current Data ◽  
Sensor Technology ◽  
Current Sensor ◽  
Characteristic Analysis ◽  
Signal Processing System

The straight-through magneto-optical glass current sensor has desirable temperature properties, but it is vulnerable to magnetic interference. In contrast, a polarization-type fiber optic current sensor has poor temperature performance, but the magnetic anti-interference characteristic is very good. Aiming at the problem that the accuracy of a fiber optic current sensor is susceptible to external disturbances and temperature fluctuations, we present an adaptive technology of a fiber optic current sensor that uses the magneto-optical output signal to correct the fiber output signal. The working principle of the improved method is introduced in this paper. The structure of the specific optical system and the signal processing system are presented. Temperature fluctuation and magnetic change detection units are included in the design in order to provide signal selection under different environmental fluctuations, thus stabilizing the output current data. The signal processing system was proved to be effective by building an experimental platform.

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