የተከፋፈለ የፋይበር ኦፕቲክ ዳሳሽ የቧንቧ መስመር መፍሰስ የሙቀት ንዝረት DTS, ዲቪኤስ, የ, ጥቅሞች

የፋይበር ኦፕቲክ ሙቀት ዳሳሽ, ብልህ የክትትል ስርዓት, በቻይና ውስጥ የተከፋፈለ የፋይበር ኦፕቲክ አምራች

Introduction to Distributed Fiber Optic Acoustic Sensing System

A measurement system developed based on distributed fiber optic sensing technology. It is a comprehensive new distributed fiber optic sensing technology system that integrates multiple disciplines such as optics, electronics, mechanics, and digital signal processing, based on the Rayleigh scattering effect generated by optical signals during fiber optic propagation and the principle of optical time domain reflectometry (OTDR) ቴክኖሎጂ. በዚህ ሥርዓት ውስጥ, optical fibers are both devices for transmitting optical signals and sensing external information. ስለዚህ, they can continuously and quickly measure external acoustic and vibration information along the fiber optic cable.

Advantages and Applications of Distributed Fiber Optic Sensors

It has many advantages such as low loss, አነስተኛ መጠን, ቀላል ክብደት, ከፍተኛ ስሜታዊነት, ጠንካራ የዝገት መቋቋም, ፀረ ኤሌክትሮማግኔቲክ ጣልቃገብነት, የኃይል አቅርቦት አያስፈልግም, እና ዝቅተኛ ወጪ, which make up for the shortcomings of traditional electrical sensors in monitoring range and system reliability, and have achieved rapid development in just a few decades. ሰዎች የሙቀት ለውጥን መለካት በተሳካ ሁኔታ ደርሰዋል, ትኩረት, ግፊት, ንዝረት, መፈናቀል, እና የተለያዩ የፋይበር ኦፕቲክ ዳሳሾችን በመጠቀም ሪፍራክቲቭ ኢንዴክስ. እስካሁን, እንደ ፔሪሜትር ደህንነት ባሉ መስኮች ውስጥ የተለያዩ የፋይበር ኦፕቲክ ሴንሰሮች በስፋት ጥቅም ላይ ውለዋል።, ኤሮስፔስ, የቧንቧ መስመር ክትትል, የኃይል ምህንድስና, እና ባዮሜዲካል ምርምር. ከነሱ መካከል, በጣም ተግባራዊ የሆነው ዋጋ የተከፋፈለው የፋይበር ኦፕቲክ ዳሳሽ ስርዓት ነው.

የተከፋፈለ የፋይበር ኦፕቲክ ሙቀት ዳሳሽ for substations

The fiber optic temperature measurement system used for substation temperature monitoring can accurately and timely locate temperature anomalies on a single fiber optic cable through distributed fiber optic temperature testing based on Raman scattering temperature measurement technology; በተመሳሳይ ሰዓት, the system is equipped with multi-level temperature alarm values and temperature rise rate alarms, displaying temperature distribution curves in real time, and providing early warning before a fire occurs. This solves the problem that existing temperature measurement systems can only passively set a temperature threshold, which is prone to misjudgment and cannot accurately locate the location of the accident point. Distributed fiber temperature testing based on Raman scattering temperature measurement technology can accurately and timely locate temperature anomalies on a single fiber; በተመሳሳይ ሰዓት, the system is equipped with multi-level constant temperature alarm values and temperature rise rate alarms, displaying temperature distribution curves in real time, and providing early warning before a fire occurs, greatly reducing the probability of substation fires.

Oil pipeline leakage temperature vibration host

አህነ, oil and gas pipelines are an important component of petroleum and natural gas engineering. Due to corrosion, weld defects, external vibrations, and even theft and damage, pipeline leaks, damage to anti-corrosion coatings, and leaks and corrosion at pipeline connections such as flanges, threaded buckles, and packing boxes have become increasingly severe. Pipeline leakage not only causes obstruction of transportation, but also pollutes the environment and even triggers accidents such as explosions and fires, requiring a significant amount of manpower and resources for monitoring, maintenance, and management. So early prevention, timely warning, and location of pipeline leaks have very important practical significance.

በተመሳሳይ ሰዓት, oil and gas need to be heated during transportation to promote flow. The heating device heats the oil to a certain temperature and then transports it in pipelines. ቢሆንም, excessive heating can cause resource waste and increase the cost of oil and gas transportation. How to set heating reasonably is of great significance for energy consumption control in oil and gas engineering. The temperature of oil in pipelines will decrease, forming a temperature gradient that decreases with transportation distance. The real-time and distributed monitoring values of this temperature can serve as an important basis for heating feedback control, which plays an important role in reasonable temperature control and reducing transportation energy consumption.

The comprehensive monitoring system for oil and gas pipelines is equipped with optical cables inside the pipelines, ከፋይበር ኦፕቲክ ክትትል አስተናጋጅ ጋር የተገናኙት. የኦፕቲካል ኬብሎች የዘይት እና የጋዝ ቧንቧዎችን የንዝረት ምልክቶችን በእውነተኛ ጊዜ ይገነዘባሉ እና ወደ ፋይበር ኦፕቲክ ቁጥጥር አስተናጋጅ ያስተላልፋሉ የነዳጅ እና የጋዝ ቧንቧዎችን የመፍሰስ ሁኔታ በተለያዩ ቦታዎች ላይ ለመለየት. ከነሱ መካከል, የንዝረት ምልክቶች በዋነኛነት የውጭ ንዝረትን እና ሌላው ቀርቶ ስርቆትን እና ጉዳትን ሊያንፀባርቁ ይችላሉ።.

Distributed fiber optic monitoring of water pipeline temperature

Once invaded by malicious excavation, drilling, or geological disasters causing pipeline rupture and damage, it will be destroyed and even lead to environmental pollution and economic losses. In order to maintain safety along the pipeline and prevent human or environmental damage, it is necessary to conduct real-time online monitoring of the working status of water pipes and provide timely and accurate advance alarms for threatening intrusion events. ስለዚህ, pipeline safety monitoring technology plays an important role in maintaining pipeline transportation and has social and economic significance.

Distributed fiber optic temperature measurement system is a technology used for real-time measurement of temperature spatial distribution, which can be widely applied to temperature detection and fire warning in coal mines, ዋሻዎች, large buildings, transmission cables, የኬብል ማስቀመጫዎች, and other areas. The distributed fiber optic temperature measurement system mainly uses the principle of spontaneous Raman scattering inside the fiber optic to measure temperature, and uses the principle of optical time domain reflection to locate and realize the temperature sensing system for measuring the temperature field.

DAS distributed fiber optic acoustic vibration monitoring

The distributed fiber optic sensing system based on the principle of phase sensitive photosensitive time-domain reflection (Φ – OTDR) has the advantages of simple structure, long detection distance, ability to locate multiple disturbances simultaneously, high resolution, and accurate positioning accuracy. It can be applied in water supply pipeline leak monitoring to detect and locate the leak location in real time without causing any damage or affecting the normal operation of the pipeline. Distributed acoustic sensing (የ) is based on the Φ – OTDR technology, which detects the phase signal of backscattered light in the sensing fiber to achieve the detection of distributed sound or vibration signals. It not only provides sound or vibration event intensity information using phase and amplitude, but also uses linear quantitative measurement values to obtain sound time phase and frequency information.