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Preprint · Preprints.org · June 7, 2023

Development and Design of an Optical-Electronic System of Fiber-Optic Sensors Based on Inclined Fiber Bragg Gratings

Aliya Kalizhanova, Айнур Козбакова, Waldemar Wójcik, Murat Kunelbayev, Zhalau Aitkulov

Murat Kunelbayev
Read on dx.doi.orgPDFDOI 10.20944/preprints202306.0489.v1

Abstract

The object of research is an optical-electronic system for recording and processing signals from fiber-optic sensors. Due to the use of optical fibers as sensitive elements, there is no influence on the measurement result of electromagnetic fields, spurious electromagnetic radiation, channel crosstalk, there are no problems, electrical safety is significantly increased, there are no problems of arcing and sparking. A scheme of a receiving-transmitting module has been developed, which is additionally equipped with a preliminary protection and filtering system. Further, measuring tracks, microcontroller software and functional tests were ordered to determine the metrological properties of the proposed system.Signal integrity analysis is presented, which allows you to check whether the signals present in the device are correctly transmitted between their sources and receivers. The analysis of signal integrity is investigated, which is performed in two stages of the device design process. Modeling of the studied module in the specialized program Altium Designer. With the help of this program, potential problems were found, such as the occurrence of crosstalk between paths, the exact values of some elements, accurate analytical calculation. Learned an impedance analysis trace for a given connection's parameters, where the value affects the shape of the given path, its physical dimensions, distance from other paths, and other physical properties of the board. Optoelectronic system for recording and processing signals from fiber optic sensors based on Bragg fiber gratings resistant to electromagnetic interference and temperature, for use in modern systems for monitoring building structures, bridges, tunnels, dams, high-rise buildings, railways, oil platforms, buildings, pipelines.

Advanced Fiber Optic SensorsAdvanced Measurement and Detection MethodsOptical and Acousto-Optic Technologiesfiber optic sensorselectro-optical systemssignal integrity

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