El principio, Characteristics and Applications of Fiber Bragg Grating Temperature Sensing Fire Detection System-INNO

Fiber Bragg grating temperature measurement, as a new technology of fiber optic temperature measurement, has been widely developed and applied. It uses fiber optic as the signal transmission and sensing medium, and utilizes the temperature sensitivity of fiber Bragg grating and the principle of light reflection to detect temperature changes. The fiber Bragg grating linear temperature sensor made using fiber Bragg grating demodulator technology is particularly suitable for temperature monitoring in high and low voltage switchgear, juntas de cables, petroleum and petrochemical storage tanks, etc.. in substations due to its on-site non electric detection, seguridad intrínseca y a prueba de explosiones, antiinterferencia electromagnética, protección contra rayos, buen aislamiento, larga vida útil, y tamaño pequeño. It can detect fire hazards in a timely manner and prevent them before they occur.

Sistema de detección de incendios con sensor de temperatura de rejilla de fibra Bragg

Rejilla de Bragg de fibra (FBG) fire detector is a new type of fire detection system based on FBG temperature sensing technology. Tiene las características de alta sensibilidad., buena estabilidad a largo plazo, and distributed installation and measurement. Due to its all optical characteristics
The characteristics of fiber passive measurement are particularly suitable for use in harsh environments such as flammable, explosivo, y electromagnético fuerte. El sensor de rejilla de fibra óptica es un nuevo tipo de sensor de fibra óptica fabricado con rejillas de fibra óptica.. Es un dispositivo pasivo totalmente de fibra desarrollado en la década de 1990.. Se pueden fabricar varios sensores utilizando rejillas de fibra óptica., como la temperatura, cepa, estrés, aceleración, presión, etc.. Diferentes sensores de rejilla de fibra óptica pueden tener diferentes longitudes de onda operativas, Por lo tanto, la tecnología de multiplexación por división de longitud de onda se puede utilizar para conectar en cascada múltiples sensores de rejilla de fibra óptica en un solo fibra para medición distribuida, mejorando la flexibilidad del cableado. Los sensores de fibra óptica tienen las características de tamaño pequeño., peso ligero, compatibilidad con fibras ópticas, baja pérdida de inserción, y buena estabilidad a largo plazo en el rendimiento.

Fiber optic temperature sensors are a rapidly developing application range in the field of fiber optic sensors. Fiber optic temperature sensors can replace traditional temperature sensors in some situations. En comparación con las galgas extensométricas de resistencia tradicionales, Los sensores de fibra óptica tienen ventajas obvias, como su pequeño tamaño., peso ligero, sin interferencias electromagnéticas, resistencia a la radiación, and distributed measurement. Por lo tanto, Han sido ampliamente utilizados en el campo de la medición de temperatura..

Características y aplicaciones del sistema de detección de incendios con sensor de temperatura de rejilla de fibra de Bragg

Rejilla de Bragg de fibra (FBG) temperature fire detectors have the characteristics of high measurement accuracy, buena estabilidad a largo plazo, medición distribuida, and high sampling frequency, making them suitable for many temperature detection needs. They are mainly used in the following areas: 1. Fire detection in residential areas; 2. Temperature monitoring of commercial buildings; 3. Temperature monitoring of oil tanks in oil depots; 4. Temperature monitoring in explosion-proof areas; 5. Civil and construction engineering monitoring; 6. The distribution of temperature underground in oil wells.

Rejilla de Bragg de fibra (FBG) thermal fire detectors generally include FBG thermal sensor arrays, signal processors, service terminals, customer terminals, and fire alarm controllers

The fiber optic grating linear temperature fire detector has high reliability and stability in transmission lines, and has the ability to stably transmit data under harsh conditions. Al mismo tiempo, it has excellent resistance to damage, flame retardancy, good water resistance, and high strength. It adopts a service terminal/customer split mode, which is convenient for system topology and can achieve rich remote management interfaces. It is convenient to connect with upper management systems and can provide customized interfaces. Easy to configure and provide multiple alarm methods. The setting method of the internal fiber optic grating can make the fiber optic grating closest to the measured environment to the maximum extent, greatly improving the temperature response time of the fiber optic grating. Especially in fire alarms that require rapid response, it can provide real-time feedback on temperature changes at the fire site, prevent losses caused by response delay, and also improve the protection strength of the fiber optic grating. By using passive fiber Bragg gratings to sense the deformation of elastomers as alarm triggering signals, Tiene ventajas como anti interferencia electromagnética., larga distancia de transmisión, y seguridad intrínseca. It can also be used in places without power supply and in dark and humid environments.