分布式光纖溫度傳感是一種用于實(shí)時(shí)測(cè)量空間溫度場(chǎng)分布的新技術(shù), 對(duì)光纖沿線地點(diǎn)的溫度進(jìn)行分布連續(xù)檢測(cè), 光纖本身就是溫度傳感器。由于光纖傳感的本征特點(diǎn), 該技術(shù)特別適合應(yīng)用于電氣設(shè)備的溫度檢測(cè),并能和消防報(bào)警系統(tǒng)配合使用, 在發(fā)電廠、變電站的電氣設(shè)備狀態(tài)檢測(cè)中有廣闊的應(yīng)用前景。
關(guān)鍵詞: 光纖; 激光; 溫度檢測(cè); 電氣設(shè)備
Abstract : Distributed optical fiber temperature sensing is a newly developed technique for the measurement of spatial temperature distribu2 tion. It can be used to monitor temperature along an optical fiber of some kilometers . The optical fiber itself is both the sensing elements and the signal transmission medium. Because of its intrinsic advantages , this technique is especially suitable for the temperature monitoring of electrical power facilities . When combined with other fire protection techniques , distributed optical fiber temperature sensor system should be widely used in the state monitoring of electrical facilities in electrical power plants , substations and so forth.
Key words : fiber ; laser ; temperature monitoring ; electrical facilities