Aplicação do sensor de grade de Bragg de fibra: The Best Chinese Manufacturer of Fiber Bragg Grating Sensing Perimeter Security Early Warning System-INNO

O monitoramento de temperatura dos cabos, cabos ópticos de transmissão, e contatos de isolamento de comutadores de alta tensão sempre foram uma questão importante na operação segura do setor de energia. Sensores de grade de fibra óptica integram medição e transmissão, usando ondas de luz para medição e transmissão. Eles têm as vantagens do tamanho pequeno, peso leve, baixa perda de transmissão, sem interferência eletromagnética, e bom desempenho de isolamento. Portanto, eles são muito adequados para os ambientes de medição de temperatura acima. Como um dos principais componentes dos sensores de fibra óptica, grades de fibra óptica têm as vantagens de alta sensibilidade, forte resistência à interferência eletromagnética, tamanho pequeno, e peso leve, e têm sido amplamente utilizados na engenharia civil, petroquímica, aeroespacial, indústrias médicas e de construção naval e outros campos. Além das vantagens dos sensores tradicionais, sensores de grade de fibra óptica também têm a característica de codificação de comprimento de onda, que é fácil de conectar em rede e reutilizar, e pode alcançar medição quase distribuída. Eles podem ser aplicados em locais de engenharia severos.

Vantagens de Sensores de grade de Bragg de fibra

A tecnologia de detecção de grade de fibra óptica tem sido um ponto importante de pesquisa nos últimos anos. Comparado com sensores tradicionais, sensores de grade de fibra óptica têm vantagens como resistência à interferência eletromagnética, alta sensibilidade, e tamanho pequeno. Para sensores de grade de fibra óptica específicos, existe uma relação correspondente entre mudanças de comprimento de onda e temperatura e pressão ambiente. Portanto, in order to accurately measure temperature and pressure, wavelength demodulation technology of fiber Bragg gratings is very important. Fiber optic grating sensors can be packaged in various forms for detecting physical quantities such as temperature, variedade, pressão, e deslocamento. With the continuous advancement of technology and the need for safety monitoring, higher requirements have been put forward for fiber optic grating sensors and demodulation equipment. This requires fiber optic grating demodulation systems to be able to measure the changes in sensor reflection wavelength at high speed, ampla gama, e alta resolução. Demodulador de grade de Bragg de fibra, capable of multi-channel and multi-sensor synchronous demodulation, has strong human-machine interaction, can effectively improve wavelength demodulation speed, and more efficiently obtain wavelength measurement values of fiber Bragg grating sensors; Effectively improving demodulation speed, with advantages such as high system integration, baixo custo, estrutura simples, convenient operation, and good human-machine interaction; It can store multiple sets of demodulated data and query historical data, and can expand the module. Ao mesmo tempo, it can connect multiple sensors for monitoring and unified control.

The Application Range of Fiber Bragg Grating Sensors

Fiber optic grating sensor array is a sensor array that connects multiple fiber optic grating sensors through optical fibers to achieve multiple position points and physical quantity measurements on the fiber optic. It is an important direction of fiber optic grating sensor technology. Atualmente, fiber optic grating sensor arrays have been applied in fields such as ocean parameter measurement and building structural health monitoring. Por exemplo, fiber optic grating temperature and depth measurement systems are used for ocean temperature and depth profile information measurement, fiber optic grating strain measurement systems are used for bridge and tunnel strain measurement, and fiber optic grating inclination measurement systems are used for landslide monitoring.

Fiber Bragg Grating Sensing Perimeter Security Early Warning System

With the vigorous development of the social economy, the country and society are paying more and more attention to the safety issues of people’s lives, property, and living environment; The frequent occurrence of terrorist attacks and public safety accidents has further increased the demand for security warning systems. The perimeter security early warning system, installed on the perimeter of important areas or building facilities, provides early warning for intrusion into defense areas and has important applications in many military and civilian fields. The traditional perimeter security early warning system mainly includes video surveillance, radiação infravermelha, electronic fences, etc.. The video surveillance system uses cameras to monitor the defense area, but requires security personnel to be on duty 24 horas por dia. After discovering intrusion behavior, it also needs to search for clues in massive data, which consumes a lot of human resources; The infrared targeting system uses a pair of infrared emitting and receiving devices to form safety protection, but when the terrain of the defense area is complex and undulating, the difficulty and cost of system deployment greatly increase; Electronic fences use electronic pulses for safety protection, but the system has poor resistance to electromagnetic interference and is severely affected by weather conditions such as wind, chuva, e relâmpago, resultando em uma alta taxa de alarmes falsos.

The perimeter security warning system based on fiber optic grating sensing adopts fiber optic grating sensing technology, which has good electromagnetic interference resistance and can be used in flammable and explosive places. It is more convenient to deploy and maintain, and is suitable for deployment in complex terrains; By adopting wavelength modulation and wavelength division multiplexing technology, the system has higher reliability, greatly reduced false alarm rates, and can accurately locate intrusion locations, greatly enhancing the scalability of the system; The system analyzes the collected signals by controlling the host, accurately judges the perimeter situation, and improves the accuracy of alarms; After discovering the perimeter intrusion, the video capture function and sound and light alarm function are linked, eliminating the need for security personnel to be on duty 24 horas por dia, greatly saving human resources. The perimeter security early warning system based on fiber optic grating sensing can be used for perimeter security protection in military bases, government agencies, important building facilities, flammable and explosive places, e locais de atividades em grande escala, e tem alto valor nos campos militar e civil.