光纖光柵溫度傳(chuan)感器(qi)可以測(ce)量很多被(bei)測(ce)物體的(de)溫度，測(ce)量精確，性能穩(wen)定。

在我國(guo)電(dian)力系(xi)統發(fa)展過程中，用電(dian)安(an)全性(xing)問題日益突出。事故(gu)頻發(fa)，大多(duo)因為(wei)電(dian)流通過某些部位(wei)，導致(zhi)局(ju)部過熱，并(bing)且沒有(you)及時發(fa)現所導致(zhi)。基(ji)于(yu)此，對某些重點部位(wei)進行溫度監測、顯(xian)示、報警，若有(you)意外發(fa)生，及時采取(qu)處理措(cuo)施，是避(bi)免(mian)安(an)全事故(gu)發(fa)生之關鍵。

傳(chuan)(chuan)(chuan)(chuan)(chuan)統(tong)(tong)(tong)(tong)電(dian)(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)中測(ce)(ce)溫方(fang)法主要包括接(jie)觸(chu)式(shi)和(he)非(fei)接(jie)觸(chu)式(shi)測(ce)(ce)量兩(liang)種。熱電(dian)(dian)(dian)阻測(ce)(ce)溫、熱電(dian)(dian)(dian)偶測(ce)(ce)溫和(he)紅外線(xian)測(ce)(ce)溫是實際應(ying)用中常見的(de)(de)測(ce)(ce)溫方(fang)法。傳(chuan)(chuan)(chuan)(chuan)(chuan)統(tong)(tong)(tong)(tong)方(fang)法因器件測(ce)(ce)量局(ju)限，易受(shou)到環境溫度以及電(dian)(dian)(dian)磁的(de)(de)干擾，無法精確測(ce)(ce)量。與此同時，傳(chuan)(chuan)(chuan)(chuan)(chuan)統(tong)(tong)(tong)(tong)傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)器也(ye)給電(dian)(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)絕緣防護(hu)帶來一些問題，故降低了電(dian)(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)的(de)(de)絕緣防護(hu)等級。為彌補傳(chuan)(chuan)(chuan)(chuan)(chuan)統(tong)(tong)(tong)(tong)方(fang)法的(de)(de)局(ju)限，光(guang)纖(xian)光(guang)柵(zha)測(ce)(ce)溫技術(shu)應(ying)運而(er)生。以光(guang)纖(xian)為媒(mei)介(jie)的(de)(de)新型傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)器，克服了電(dian)(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)環境中的(de)(de)電(dian)(dian)(dian)磁干擾，且由于(yu)光(guang)纖(xian)優(you)良的(de)(de)物理(li)、化學、機械特性和(he)傳(chuan)(chuan)(chuan)(chuan)(chuan)輸性能，使得光(guang)纖(xian)傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)器具有(you)傳(chuan)(chuan)(chuan)(chuan)(chuan)統(tong)(tong)(tong)(tong)型傳(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)器無法比擬(ni)的(de)(de)優(you)點。

光纖光柵測溫傳感器的特點

伴隨著光(guang)(guang)(guang)纖(xian)(xian)通訊和(he)集成光(guang)(guang)(guang)學(xue)技(ji)術(shu)的(de)(de)(de)發展，在傳感(gan)器(qi)領域(yu)光(guang)(guang)(guang)纖(xian)(xian)傳感(gan)技(ji)術(shu)方興未艾，與(yu)傳統(tong)相比，光(guang)(guang)(guang)纖(xian)(xian)傳感(gan)器(qi)的(de)(de)(de)優(you)點(dian)不(bu)是(shi)功能特性(xing)，而是(shi)源自其本(ben)身的(de)(de)(de)物理特性(xing)。光(guang)(guang)(guang)纖(xian)(xian)傳感(gan)器(qi)具有(you)質量(liang)(liang)輕(qing)、直(zhi)徑細(xi)、信號(hao)衰減(jian)小、抗腐蝕性(xing)強、抗電(dian)(dian)(dian)磁干擾、耐高溫(wen)(wen)的(de)(de)(de)特點(dian)，且具有(you)集信息傳感(gan)與(yu)傳輸與(yu)一體(ti)等優(you)點(dian)，可(ke)(ke)解(jie)決常規(gui)(gui)檢(jian)測(ce)技(ji)術(shu)不(bu)能解(jie)決的(de)(de)(de)測(ce)量(liang)(liang)問題(ti)。首先，光(guang)(guang)(guang)纖(xian)(xian)本(ben)身絕緣性(xing)能良(liang)好，可(ke)(ke)以隔(ge)離電(dian)(dian)(dian)力系(xi)(xi)統(tong)與(yu)測(ce)量(liang)(liang)設備之(zhi)間的(de)(de)(de)高壓，避免(mian)了測(ce)溫(wen)(wen)裝置引起的(de)(de)(de)設備安全(quan)事故(gu)，安全(quan)性(xing)大大提(ti)高。使用光(guang)(guang)(guang)纖(xian)(xian)作(zuo)為傳輸和(he)傳感(gan)信號(hao)的(de)(de)(de)載體(ti)，可(ke)(ke)以克服在電(dian)(dian)(dian)力系(xi)(xi)統(tong)環境(jing)中數據(ju)傳輸存在的(de)(de)(de)強電(dian)(dian)(dian)磁干擾問題(ti)，故(gu)可(ke)(ke)得到(dao)更加精確的(de)(de)(de)測(ce)量(liang)(liang)結果。其次由于光(guang)(guang)(guang)纖(xian)(xian)撓曲性(xing)好，可(ke)(ke)檢(jian)測(ce)常規(gui)(gui)傳感(gan)器(qi)不(bu)能達到(dao)的(de)(de)(de)部位。這些優(you)點(dian)使得光(guang)(guang)(guang)纖(xian)(xian)傳感(gan)器(qi)在電(dian)(dian)(dian)力系(xi)(xi)統(tong)溫(wen)(wen)度測(ce)量(liang)(liang)方面展露頭角(jiao)，逐步替代其他傳感(gan)器(qi)測(ce)量(liang)(liang)方法，比較適合作(zuo)為高壓開關柜溫(wen)(wen)度測(ce)量(liang)(liang)的(de)(de)(de)主要手段。

光纖光柵測溫系統的組成

光纖(xian)傳(chuan)感器與(yu)光纖(xian)光柵信(xin)號處理器相連，最后(hou)通過(guo)RS485通信(xin)口與(yu)后(hou)臺(tai)計算機實現通信(xin)；監測(ce)的溫(wen)度數據在計算機中(zhong)保存并在屏幕上顯示，從(cong)而可達到監視電(dian)纜(lan)接頭溫(wen)度之目(mu)的。當電(dian)纜(lan)接頭溫(wen)度出(chu)現異(yi)常時(shi)，系統將會給出(chu)報警(jing)信(xin)

光纖光柵溫度傳感(gan)器(qi)以及光分路盒，完成對測(ce)(ce)點(dian)(dian)的(de)數據采集和(he)光路傳送(song)。對某變電站內10kV主(zhu)進(jin)、連(lian)橋和(he)重(zhong)要(yao)分路等 10面(mian)開關柜進(jin)行實(shi)時(shi)溫度檢測(ce)(ce)，每面(mian)開關柜分別檢測(ce)(ce)短路器(qi)母線側靜觸(chu)頭(tou)、線路側靜觸(chu)頭(tou)以及電纜連(lian)接排三相(xiang)，大約9個點(dian)(dian)的(de)溫度，被(bei)測(ce)(ce)節點(dian)(dian)上安裝(zhuang)傳感(gan)器(qi)，光分路盒安裝(zhuang)在(zai)開關柜面(mian)板(ban)上。

華光(guang)天銳解(jie)決了(le)高壓開關柜溫(wen)度實時(shi)監測(ce)問題常用監測(ce)方法及其(qi)優缺點，光(guang)纖光(guang)柵(zha)在電力系統(tong)溫(wen)控(kong)領域的應用，光(guang)纖光(guang)柵(zha)作為一種新穎的傳感檢測(ce)技(ji)術，自(zi)其(qi)出現之始就得(de)到(dao)了(le)廣泛的關注。