Development of an optoelectronic system for recording and processing signals from fiber-optic sensors

Kalizhanova A. Kozbakova A. Kunelbayev M. Aitkulov Z.
2023 North Atlantic University Union NAUN

International Journal of Mechanics
2023 #17 87 - 92 pp.

Natural disasters, in particular earthquakes, can damage bridges, tunnels, dams, high-rise buildings, railways, oil platforms, buildings, and pipelines with catastrophic humanitarian, social, economic, and environmental consequences. Thus, automatic assessment of damage to industrial and civil construction structures after an earthquake in real-time or on request is necessary for early emergency response, effective preparation of rescue plans, and mitigation of these catastrophic consequences. The article presents the use of a system of distributed fiber-optic sensors based on Bragg fiber arrays, which will allow periodic measurements and monitoring of the condition of structures, assessing trends in its technical condition and thereby facilitating the identification of possible threats. The given research presents assembling and testing optoelectronic systems to record and process signals from fiber-optic sensors. The main optoelectronic systems to record and process the signals from fiber-optic sensors are light source controllers and optical power detectors. There was an assembled controller diagram, which apart from the light source includes the current source for its adequate operation, as well as the systems necessary for stabilizing its working point. The scheme was modeled for specifying nominal and maximum operation criteria. Construction has been designed in a way, that the light source controller includes structures of the current regulation and stabilization SLED (super luminescent diode) and temperature stabilization. Apart from that, there was assembled the microsystem of the optical power detector additionally to the light detector, which includes the microsystems of intensification and filtration of the signal measured, processing analog data into digital form, and microcontroller, used for preliminary data analysis. Data of optoelectronic systems diagram to record and process the signals from fiber-optic sensors has high response speed, low noise level, and sufficient progress. type your abstract here.

Damage to structures , fiber-optic sensor , microcontroller STM32F4, impedance routing analysis , optoelectronic system

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Institute of Information and Computational Technologies CS MSHE RK, Almaty University of Energy and Communications named after G. Daukeyev, Kazakhstan
Almaty Technological University, Institute of Information and Computational Technologies CS MSHE RK, Almaty, Kazakhstan
Al-Farabi Kazakh National University, Institute of Information and Computational Technologies CS MSHE RK, Almaty, Kazakhstan
Kazakh National Womens Teacher Training University, Institute of Information and Computational Technologies CS MSHE RK, Almaty, Kazakhstan

Institute of Information and Computational Technologies CS MSHE RK
Almaty Technological University
Al-Farabi Kazakh National University
Kazakh National Womens Teacher Training University

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