本文選題：布里淵光頻域分析技術(shù) + 布里淵光時(shí)域分析技術(shù)　； 參考：《防災(zāi)減災(zāi)工程學(xué)報(bào)》2015年06期

【摘要】：在實(shí)驗(yàn)的基礎(chǔ)上對(duì)新型分布式光纖監(jiān)測(cè)技術(shù)——布里淵頻域分析技術(shù)(BOFDA)的感測(cè)性能進(jìn)行了測(cè)試與分析,其空間分辨率可達(dá)20cm,測(cè)試精度可達(dá)±2με,測(cè)試重復(fù)性為±4με;通過與布里淵光時(shí)域分析技術(shù)(BOTDA)測(cè)試性能的比較,對(duì)BOFDA的測(cè)試性能進(jìn)行了評(píng)價(jià),分析了應(yīng)變過渡區(qū)產(chǎn)生的原因;通過BOFDA等強(qiáng)度梁實(shí)驗(yàn),并與電阻應(yīng)變片測(cè)試結(jié)果和理論計(jì)算值比較,證明了BOFDA優(yōu)異的測(cè)試性能。最后,對(duì)BOFDA在各類工程防災(zāi)減災(zāi)監(jiān)測(cè)中可能遇到傳感光纜的保護(hù)及溫度補(bǔ)償問題進(jìn)行了分析,并提出相應(yīng)解決方案。
[Abstract]:Based on the experiment, the sensing performance of Brillouin Frequency Domain Analysis (Brillouin Frequency Domain Analysis), a new distributed optical fiber monitoring technology, is tested and analyzed. The spatial resolution can reach 20 cm, the measurement precision is 鹵2 渭 蔚, and the test repeatability is 鹵4 渭 蔚. By comparing with the Brillouin optical time domain analysis technique, the test performance of BOFDA is evaluated, and the causes of strain transition region are analyzed. The excellent testing performance of BOFDA is proved by comparing the test results with the results of resistance strain gauges and the theoretical calculation results through the experiments of BOFDA equal strength beams. Finally, the problems of protection and temperature compensation of sensing cables in various engineering disaster prevention and mitigation monitoring by BOFDA are analyzed, and the corresponding solutions are put forward.
【作者單位】： 南京大學(xué)地球科學(xué)與工程學(xué)院;蘇州南智傳感科技有限公司;
【基金】：國家自然科學(xué)基金重點(diǎn)項(xiàng)目(41230636) 國家科技支撐計(jì)劃項(xiàng)目(2012BAK10B05) 國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)項(xiàng)目(2011CB710605)資助
【分類號(hào)】：TU196

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