የፋይበር ኦፕቲክ ሙቀት ዳሳሽ, ብልህ የክትትል ስርዓት, በቻይና ውስጥ የተከፋፈለ የፋይበር ኦፕቲክ አምራች
The integrated pipe gallery, subway, underground complex and other underground engineering are unified into the urban underground space planning, አጠቃላይ እና አጠቃላይ እድገትን መፍጠር, and the fire prevention requirements of the integrated pipe gallery are gradually increasing. በጠቅላላው የቧንቧ ጋለሪ ላይ የሚተገበረው የእሳት አደጋ ማስጠንቀቂያ ስርዓት በዋናነት ሊኒያር ፋይበር ኦፕቲክ የሙቀት መጠን መለየት ነው።, በራማን ስርጭት እና በኦፕቲካል ጊዜ ጎራ አንፀባራቂ ላይ ተመስርተው በተከፋፈሉ የፋይበር ኦፕቲክ ዳሳሾች. ኃይለኛ የኤሌክትሮማግኔቲክ ጣልቃገብነት መከላከያ ጥቅሞች አሉት, ከፍተኛ ስሜታዊነት, እና ዝቅተኛ ወጪ. ቢሆንም, የእርጥበት አከባቢን ባህሪያት ለማጣጣም, ውስብስብ የቧንቧ መስመሮች, እና አጠቃላይ የቧንቧ ጋለሪ ከፍተኛ የእሳት መከላከያ መስፈርቶች, የመስመራዊ ፋይበር ኦፕቲክ የሙቀት መፈለጊያ ስርዓት አፈፃፀም የበለጠ መሻሻል አለበት።.
In the analysis of temperature (fire) in various engineering systems, temperature measurement methods, scattered and discontinuous temperature measurement points, temperature measurement distance, temperature measurement accuracy, extraction of temperature signals, and location analysis of heating points are important links. Traditional temperature measurement devices have weaknesses such as live detection, low temperature accuracy, fuzzy positioning, low temperature response rate, short effective temperature measurement distance, and difficult construction. Develop a distributed linear fiber optic temperature measurement system that meets the requirements based on the actual temperature (fire) monitoring signals of major engineering projects, combined with optical technology and electronic circuit technology. The more continuous the data collected by instruments for monitoring temperature (fire) in an effective area, the more realistic and accurate the actual signals obtained. This requires a device with super computing power and high-speed acquisition and processing. Through long-term monitoring and analysis of temperature (fire), a lot of information about temperature (fire) can be obtained. ስለዚህ, whether temperature (fire) can be monitored continuously and accurately for a long time largely determines the accuracy and timeliness of temperature (fire) warning and alarm.
The recoverable linear fiber optic temperature sensing fire detection and alarm system is a new type of temperature sensing fire detection and alarm system developed internationally in recent years. It integrates laser technology, fiber optic transmission and sensing technology, optoelectronic technology, weak signal detection technology, high-speed transient data acquisition and computer processing technology, and is a high-tech product that integrates optics, mechanics, electronics, and computers. The system utilizes the Raman scattering effect of laser fiber and the principle of optical time domain reflectometry (OTDR) to achieve temperature measurement and position determination of continuous spatial temperature fields. Although existing fire detectors can achieve basic fire alarms, they have low measurement accuracy, few measurement points, high false alarm rates, and poor reliability of information data.
The recoverable linear fiber optic differential temperature fire detector consists of a temperature sensing fiber optic, a fiber optic temperature intelligent analyzer, a connector, a central processing unit, and a fire controller. The temperature sensing fiber optic is connected to the fiber optic temperature intelligent analyzer; Fiber optic temperature intelligent analyzer and connector connection; Connect the connector to the central processing unit; Connect the central processing unit to the fire controller; Temperature sensing optical fibers include fixed temperature sensing optical fibers and differential temperature sensing optical fibers.