Mesure de température et détection d'alarme incendie à réseau de Bragg en fibre, System Characteristics and Parameters-INNO

Le système de détection d'incendie à détection de température à grille à fibre optique a été largement utilisé dans les systèmes de détection automatique d'incendie, spécialement pour les espaces étroits tels que les tunnels et les galeries de canalisations complètes. Cependant, grâce à l'amélioration continue des méthodes d'inspection traditionnelles qui se concentrent uniquement sur les caractéristiques de facilité de construction et de pose dans l'espace, l'importance des systèmes de détection de température dans la surveillance a été ignorée, ce qui entraîne une surveillance peu pratique, high maintenance costs, et même la paralysie du système due à un délabrement à long terme, présentant un risque d’incendie pour la vie des personnes. Pour remédier aux multiples défauts causés par les technologies existantes, notre produit a fait des percées significatives dans l'architecture du système, résoudre efficacement les problèmes soulevés ci-dessus. À l'heure actuelle, China’s nuclear power plants are in a period of rapid development and construction, and the protection system of nuclear power plants using nuclear fuel reactors as energy is particularly important, among which the fire detection, alarm and linkage system is also a very important system.

Fiber Bragg Grating Temperature Measurement and Sensing Fire Alarm System

1. Being able to accurately locate the exact location of temperature changes, reflecting small temporal and spatial differences in frequency to achieve precise positioning, thus forming a precise fiber optic linear temperature detection system. It integrates computer, fiber optic communication, détection par fibre optique, fiber optic transmission, photoelectric control and other technologies. Based on the temperature measurement principle of fiber optic backscattering with temperature changes, advanced OFDR technology is adopted to monitor the feedback information on the fiber optic cable in real time, measure the temperature changes at various points on the fiber optic cable, and monitor the temperature condition of the detected area in real time;
2. Suitable for long-distance monitoring, the system is very simple and reliable, sans entretien, and easy to install. It can be suspended and laid in a straight line without affecting the installation and expansion of new equipment;
3. Longue durée de vie, inherently safe optical fiber, not affected by electromagnetic interference, comprehensive intelligent judgment without false alarms, and it is not electrified, suitable for special hazardous situations.

Fiber Bragg Grating Linear Temperature Fire Detector is a fire alarm device based on the Bragg Grating temperature sensing principle, which can detect the temperature changes along the fiber Bragg Grating sensing points in real time and achieve multi-level alarm functions; This instrument comes with a LCD screen and touch buttons, making it convenient for on-site reset and self checking operations.

The fiber optic grating linear temperature sensing fire detector processor has passed various tests and inspections in GB16280-2014 “Linear Temperature Sensing Fire Detector” and obtained the corresponding 3C certificate. The temperature sensor connected has been tested by relevant national departments and obtained a high-level explosion-proof certificate.

Characteristics of Fiber Bragg Grating Linear Thermal Fire Detector

High temperature accuracy

Synchronous scanning technology (without the need for optical switches)

Vitesse de réponse rapide

Wavelength division multiplexing technology can read the temperature of each monitoring point in real time

Accurate alarm positioning

Contactable linkage alarm device

Can achieve networking function

Petite taille, rack installation

Can be used independently as an alarm device

High reliability and stability

Number of measurable channels	8
Maximum number of sensors per channel	18
temperature resolution	0.1℃
Précision de la température	±0,5℃
Sample Rate	1HZ
optical interface	FC/APC
Interface	RS232/RS485/RJ45
Linkage interface	32 passive contacts
VGA output	have
operation temperature	-10℃ ~50℃

Application of Fiber Bragg Grating Linear Thermal Fire Detector Products

Fiber Bragg Grating Linear Thermal Fire Detector is suitable for use in transportation tunnels, oléoducs et gazoducs, chimique, métallurgique, pouvoir, fire protection, énergie, warehousing, militaire, nuclear industries and other places. It is mainly used for oil tank fire alarm.