產品介紹：

電(dian)(dian)纜識(shi)別(bie)(bie)儀(yi)是根據電(dian)(dian)力行業的(de)需要而研制的(de)一種儀(yi)器。電(dian)(dian)纜識(shi)別(bie)(bie)儀(yi)在(zai)電(dian)(dian)力電(dian)(dian)纜架設、遷移、維護以及故障處理中(zhong)用來(lai)判(pan)(pan)別(bie)(bie)一束電(dian)(dian)纜中(zhong)欲尋(xun)找的(de)一根特定(ding)的(de)電(dian)(dian)纜；具有判(pan)(pan)別(bie)(bie)電(dian)(dian)纜準確(方向及幅度的(de)雙重判(pan)(pan)別(bie)(bie))、快速、操作簡(jian)單、應用范(fan)圍(wei)廣等特點。

多功能電纜識別儀廠家由信號發生器和接收識別鉗及指示表三部分組成，信號發生器主要產生特殊的脈沖調制信號，通過輸出線加至停止運行的被測電纜上，用接收鉗在現場尋找被測電纜，當接收鉗檢測器測到施加在電纜上特殊信號時，信號檢測器上電表指針與施加信號頻率同步擺動，用接收識別鉗信號檢測器時其它電纜線上檢測到的信號則要小很多且方向相反，通過電表指示幅度及方向，很容易判定被測電纜。

主機各部分功能如下：

1.　電源(yuan)開關：控(kong)制整機電源(yuan)通斷。

2.　電源(yuan)輸入(ru)插座(zuo)：用儀器所配電源(yuan)線(xian)，輸入(ru)50HZ、220V交流電源(yuan)。儀器使(shi)用時(shi)，應獨立使(shi)用三孔電源(yuan)插座(zuo)，插座(zuo)接(jie)地線(xian)就近直接(jie)接(jie)地。

3.　保險(xian)(xian)座：儀器使用10A保險(xian)(xian)芯，損壞時應換同規格保險(xian)(xian)芯。

4.　黑接(jie)(jie)線柱：測試(shi)(shi)時，用配套(tao)黑色測試(shi)(shi)線（Ф4插頭）插入此插孔，另一端測試(shi)(shi)夾接(jie)(jie)系統地。

5.　紅接(jie)線柱：測(ce)試時，用配(pei)套紅色測(ce)試線（Ф4插頭）插入此(ci)插孔(kong)，另一(yi)端(duan)測(ce)試夾接(jie)被測(ce)電纜芯(xin)線。

6.　表頭：指示輸出電流(liu)大小。

接(jie)收(shou)機各部分功能如下：

電(dian)源(yuan)開關(guan)：接收機電(dian)源(yuan)接通與關(guan)斷。

幅度調節：順時(shi)針旋(xuan)轉，接收機(ji)電表指示(shi)值(zhi)增大，逆(ni)時(shi)針旋(xuan)轉，指示(shi)值(zhi)變小。

表頭：指示(shi)輸入信號幅(fu)度大小與極性。

電源指示燈(deng)：電源開關接通時，指示燈(deng)亮。                  

極性指示(shi)燈：正確識別同一根電纜(lan)時，指示(shi)燈亮。

工作原理：

多功能電纜識別儀廠家為了可靠準確地識別電纜，需要給被識別電纜加一特殊的信號，該信號要被接收機接收，利用這一特性便能識別出要找的電纜。

電(dian)纜識別儀按下(xia)述原理(li)工作：

發生器將(jiang)周(zhou)期(qi)性(xing)的(de)(de)單極性(xing)電(dian)(dian)(dian)壓脈沖(chong)饋(kui)入要(yao)(yao)識別的(de)(de)電(dian)(dian)(dian)纜(lan)中(zhong)，該電(dian)(dian)(dian)纜(lan)需要(yao)(yao)在遠端接(jie)地，以保證有足夠大的(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)過(guo)電(dian)(dian)(dian)纜(lan)。該系統要(yao)(yao)設計成返(fan)回電(dian)(dian)(dian)流(liu)(liu)(liu)不要(yao)(yao)從同一(yi)(yi)電(dian)(dian)(dian)纜(lan)中(zhong)返(fan)回，能(neng)做(zuo)到這一(yi)(yi)點，饋(kui)入電(dian)(dian)(dian)纜(lan)中(zhong)的(de)(de)脈沖(chong)電(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)方向(xiang)可(ke)做(zuo)為一(yi)(yi)明顯的(de)(de)識別標準，流(liu)(liu)(liu)出去(qu)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)僅從這一(yi)(yi)根電(dian)(dian)(dian)纜(lan)通(tong)過(guo)，所有其它(ta)鄰近電(dian)(dian)(dian)纜(lan)中(zhong)流(liu)(liu)(liu)過(guo)的(de)(de)都是(shi)返(fan)回電(dian)(dian)(dian)流(liu)(liu)(liu)，但它(ta)們的(de)(de)極性(xing)相反。除了電(dian)(dian)(dian)流(liu)(liu)(liu)方向(xiang)這一(yi)(yi)實際差異(yi)外(wai)，電(dian)(dian)(dian)流(liu)(liu)(liu)幅度也是(shi)一(yi)(yi)識別特征，流(liu)(liu)(liu)出去(qu)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)僅通(tong)過(guo)一(yi)(yi)根電(dian)(dian)(dian)纜(lan)、而返(fan)回電(dian)(dian)(dian)流(liu)(liu)(liu)可(ke)通(tong)過(guo)幾根電(dian)(dian)(dian)纜(lan)、這意味著流(liu)(liu)(liu)出去(qu)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)比流(liu)(liu)(liu)過(guo)其它(ta)電(dian)(dian)(dian)纜(lan)的(de)(de)返(fan)回電(dian)(dian)(dian)流(liu)(liu)(liu)大。

接收(shou)機的(de)任務是(shi)探測(ce)(ce)流(liu)(liu)過電(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)(xiang)(xiang)以及它(ta)的(de)大小。為達到這一(yi)目(mu)的(de)，電(dian)(dian)(dian)(dian)流(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)被用作(zuo)傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)，它(ta)帶有一(yi)放大器(qi)(qi)(qi)(qi)并(bing)串聯在(zai)電(dian)(dian)(dian)(dian)路中(zhong)(zhong)，傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)鉗住(zhu)被測(ce)(ce)電(dian)(dian)(dian)(dian)纜(lan)，電(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過電(dian)(dian)(dian)(dian)纜(lan)產生的(de)磁場在(zai)傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)的(de)線(xian)圈中(zhong)(zhong)感(gan)應出(chu)電(dian)(dian)(dian)(dian)壓(ya)，該電(dian)(dian)(dian)(dian)壓(ya)極(ji)性由電(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)(xiang)(xiang)和傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)線(xian)圈的(de)方(fang)(fang)(fang)向(xiang)(xiang)(xiang)決定。為了(le)得(de)到明顯(xian)有電(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)(xiang)(xiang)的(de)電(dian)(dian)(dian)(dian)壓(ya)極(ji)性，對(dui)一(yi)束電(dian)(dian)(dian)(dian)纜(lan)中(zhong)(zhong)所(suo)有電(dian)(dian)(dian)(dian)纜(lan)進(jin)行測(ce)(ce)試都采取相同正確的(de)方(fang)(fang)(fang)向(xiang)(xiang)(xiang)。傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)線(xian)圈中(zhong)(zhong)感(gan)應的(de)電(dian)(dian)(dian)(dian)壓(ya)在(zai)表頭中(zhong)(zhong)顯(xian)示出(chu)來，如果傳(chuan)(chuan)感(gan)器(qi)(qi)(qi)(qi)按上(shang)述方(fang)(fang)(fang)式連(lian)接，指(zhi)針(zhen)擺動方(fang)(fang)(fang)向(xiang)(xiang)(xiang)可(ke)顯(xian)示電(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)(xiang)(xiang)，即只(zhi)有電(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)出(chu)的(de)這根電(dian)(dian)(dian)(dian)纜(lan)指(zhi)針(zhen)向(xiang)(xiang)(xiang)一(yi)邊(bian)(bian)偏(pian)(pian)，這根就是(shi)要找(zhao)的(de)電(dian)(dian)(dian)(dian)纜(lan)。所(suo)有其(qi)它(ta)電(dian)(dian)(dian)(dian)纜(lan)只(zhi)流(liu)(liu)過返回(hui)電(dian)(dian)(dian)(dian)流(liu)(liu)，指(zhi)針(zhen)向(xiang)(xiang)(xiang)另一(yi)邊(bian)(bian)偏(pian)(pian)、或(huo)無脈動電(dian)(dian)(dian)(dian)流(liu)(liu)，指(zhi)針(zhen)不偏(pian)(pian)轉。接收(shou)機上(shang)的(de)放大調節器(qi)(qi)(qi)(qi)可(ke)調整信號強度

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