Lineer fiber optik termal yangın dedektörlerinin çalışma prensibi

What is linear fiber optic

Linear fiber optic transmission technology is a technology that uses single-mode optical cables to restore broadband RF signals as undistorted as possible at the remote end. Its principle is to use high-performance optical transmitters and receivers to achieve long-distance transmission of broadband RF signals through analog optical cables. Unlike typical digital fiber optic cable transmission, signals in the fiber optic cable are transmitted in analog form.

Fiber optic thermal fire detector

In the analysis of fire temperature in various engineering systems, the temperature measurement method, dağınık ve süreksiz sıcaklık ölçüm noktaları, sıcaklık ölçüm mesafesi, Sıcaklık ölçüm doğruluğu, sıcaklık sinyallerinin çıkarılması, and positioning analysis of heating points are important links. Geleneksel sıcaklık ölçüm cihazlarının canlı algılama gibi zayıf yönleri vardır, düşük sıcaklık doğruluğu, blurred positioning, düşük sıcaklık tepki oranı, kısa etkili sıcaklık ölçüm mesafesi, ve zorlu inşaat. Develop a distributed linear fiber optic temperature measurement system that meets the requirements based on the actual temperature and fire monitoring signals of various engineering projects, optik teknoloji ve elektronik devre teknolojisi ile birleştirildi. The more continuous the data collected by instruments for monitoring fire temperature in an effective area, the more realistic and accurate the actual signals collected. This requires a device with strong computing power and high-speed data acquisition and processing. Uzun vadeli izleme ve sıcaklık analizi sayesinde, many information about fire temperature can be obtained. Bu yüzden, whether long-term, devamlı, and accurate monitoring of fire temperature can be carried out largely determines the accuracy and timeliness of fire temperature warning and alarm.

Linear fiber optic temperature sensing fire detection system

A linear fiber optic temperature fire detector is a device used for real-time measurement of spatial temperature field distribution. Its main system equipment consists of temperature sensing optical cables, sıcaklık kalibrasyonu, veri toplama, veri işleme, and graphic display. Using the same optical fiber as the sensing and conducting medium for temperature information, the temperature field information of the fiber is measured using the temperature effect of the backward Raman scattering spectrum of the optical fiber, and the measurement points are located using the optical time-domain reflection (OTDR (Türkçe)) technology of the optical fiber. Due to its inherent safety, Korozyon direnci, yüksek voltaj direnci, elektromanyetik girişim direnci, and ability to quickly measure and locate multiple points, the device has a wide range of applications, such as temperature monitoring in petroleum engineering, enerji santralleri, Mayın, Tünel, ve barajlar. It plays an important role in the safe operation of equipment and the safety of personnel and property.

The linear fiber optic temperature sensing fire detection system, as a new type of temperature measurement technology product in fire temperature measurement systems, can be widely used in many public fire protection systems. The fiber optic temperature sensing fire detection system can monitor the temperature hazards generated by fires in power systems such as cable tunnels, Kablo Kanalları, and cable intermediate heads of enterprises. It can also be used for fire detection in coal conveyor belts and storage yards. The insulation and explosion-proof properties of fiber optic can be used to monitor the high-voltage switchgear, Transformers, and other electrical equipment in coal mines in real time, eliminating potential accidents.
The linear fiber optic temperature sensing fire detection system, relying on its inherent safety and the timeliness of dynamic information, has gradually shown superiority in the safety fields of coal mine fire detection and early warning, significantly improving the level of mine production safety.

Working principle of linear fiber optic temperature sensing fire detection system

Based on the optical time-domain reflection (OTDR (Türkçe)) of optical fibers and the temperature effect of Raman scattering in optical fibers. The detection fiber optic cable is laid in the space to be tested, and the fiber optic host emits a laser beam into the detection fiber optic cable and collects real-time Raman scattered light with on-site real-time temperature information scattered along the fiber optic cable. The fiber optic host analyzes and processes these optical signals to obtain temperature distribution information on the entire fiber optic cable. Compare the temperature information with the preset alarm parameter values. When the alarm conditions are met, fiber optik ana bilgisayar bir yangın alarmı sesi ve ışık göstergesi yayar, ve alarm bilgilerini yangın alarmı kontrol cihazına gönderebilir.

Fiber optik sıcaklık sensörü, Akıllı izleme sistemi, Çin'de dağıtılmış fiber optik üreticisi