Applicazione del sensore a reticolo di Bragg in fibra: The Best Chinese Manufacturer of Fiber Bragg Grating Sensing Perimeter Security Early Warning System-INNO

Il monitoraggio della temperatura dei cavi, cavi ottici di trasmissione, e i contatti di isolamento dei quadri ad alta tensione sono sempre stati un problema importante per il funzionamento sicuro del settore energetico. I sensori a reticolo in fibra ottica integrano misurazione e trasmissione, utilizzando onde luminose per la misurazione e la trasmissione. Presentano i vantaggi delle dimensioni ridotte, peso leggero, bassa perdita di trasmissione, nessuna interferenza elettromagnetica, and good insulation performance. Perciò, sono molto adatti per gli ambienti di misurazione della temperatura di cui sopra. Come uno dei componenti principali dei sensori in fibra ottica, i reticoli in fibra ottica presentano i vantaggi di un'elevata sensibilità, forte resistenza alle interferenze elettromagnetiche, piccola dimensione, e leggero, e sono stati ampiamente utilizzati nell'ingegneria civile, prodotti petrolchimici, aerospaziale, industrie mediche e di costruzione navale e altri campi. Oltre ai vantaggi dei sensori tradizionali, I sensori a reticolo in fibra ottica hanno anche la caratteristica della codifica della lunghezza d'onda, che è facile da collegare in rete e riutilizzare, e può ottenere misurazioni quasi distribuite. Possono essere applicati a siti ingegneristici difficili.

Vantaggi di Sensori a reticolo di Bragg in fibra

La tecnologia di rilevamento dei reticoli in fibra ottica è stata un punto caldo della ricerca negli ultimi anni. Rispetto ai sensori tradizionali, I sensori a reticolo in fibra ottica presentano vantaggi come la resistenza alle interferenze elettromagnetiche, alta sensibilità, e di piccole dimensioni. Per sensori specifici con reticolo in fibra ottica, esiste una relazione corrispondente tra le variazioni di lunghezza d'onda e la temperatura e la pressione ambiente. Perciò, per misurare con precisione temperatura e pressione, la tecnologia di demodulazione della lunghezza d'onda dei reticoli in fibra di Bragg è molto importante. Sensori a reticolo in fibra ottica può essere confezionato in varie forme per rilevare quantità fisiche come la temperatura, sottoporre a tensione, pressione, e spostamento. Con il continuo progresso della tecnologia e la necessità di monitoraggio della sicurezza, sono stati proposti requisiti più elevati per i sensori a reticolo in fibra ottica e le apparecchiature di demodulazione. This requires fiber optic grating demodulation systems to be able to measure the changes in sensor reflection wavelength at high speed, ampia gamma, e alta risoluzione. Fiber Bragg Grating Demodulator, 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, basso costo, struttura semplice, convenient operation, and good human-machine interaction; It can store multiple sets of demodulated data and query historical data, and can expand the module. Allo stesso 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. Attualmente, fiber optic grating sensor arrays have been applied in fields such as ocean parameter measurement and building structural health monitoring. Per esempio, 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, infrared radiation, electronic fences, ecc. The video surveillance system uses cameras to monitor the defense area, but requires security personnel to be on duty 24 ore al giorno. 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, piovere, and lightning, resulting in a high false alarm rate.

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 ore al giorno, 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, and large-scale activity venues, and has high value in both military and civilian fields.