CAJ | 학술논문

本文介绍了分布式光纤温度传感技术渗漏监测的工作原理；对试验光纤进行了温度性能标定，确定了 DTS 激光器的预热时间；在空气、水、含水量8.64%松散砂土和含水量10.83%松散砂土中对铠装光缆进行加热，从介质导热性能方面分析了光纤加热温升过程中剧烈变化段斜率—加热功率关系、渐变段温升—加热功率关系和渐变段斜率—加热功率关系，说明了分布式光纤温度传感系统渗漏定量监测的可行性；讨论了实际工程中分布式光纤温度传感系统渗漏监测提高空间分辨率的光纤合理布置方式。
본문개소료분포식광섬온도전감기술삼루감측적공작원리；대시험광섬진행료온도성능표정，학정료 DTS 격광기적예열시간；재공기、수、함수량8.64%송산사토화함수량10.83%송산사토중대개장광람진행가열，종개질도열성능방면분석료광섬가열온승과정중극렬변화단사솔—가열공솔관계、점변단온승—가열공솔관계화점변단사솔—가열공솔관계，설명료분포식광섬온도전감계통삼루정량감측적가행성；토론료실제공정중분포식광섬온도전감계통삼루감측제고공간분변솔적광섬합리포치방식。
This paper introduced the working principle of distributed optical fiber temperature sensing technology leakage moni-toring.Carried out optical fiber temperature calibration,determined the DTS laser preheating time.Heated the armored cable embedded in the air,water,8.64% water content loose sand and 10.83% water content loose sand.Analyzed violent changed section slope-heating power relation ,gradual changed temperature rise-heating power relation and gradual changed slope-heating power relation from medium heat conduction performance.Illustrated the feasibility of quantitative monitoring leakage of distributed optical fiber temperature sensing.Presented the reasonable layout of optical fiber in the practical engineering to improve the spatial resolution of distributed optical fiber temperature sensing leakage monitoring.