工作原理簡介
電(dian)(dian)(dian)(dian)(dian)纜(lan)識(shi)別儀(yi)的(de)(de)(de)發射(she)機(ji)和接(jie)(jie)(jie)(jie)收(shou)機(ji)采(cai)用(yong)單(dan)片機(ji)編碼(ma)、解碼(ma)技術和廣泛應用(yong)在通(tong)信領域里的(de)(de)(de)PSK技術。在發射(she)卡鉗(qian)(qian)上發射(she)平均值為0 的(de)(de)(de)相位編碼(ma)信號(hao)(hao)，接(jie)(jie)(jie)(jie)收(shou)機(ji)中的(de)(de)(de)單(dan)片機(ji)對(dui)接(jie)(jie)(jie)(jie)收(shou)的(de)(de)(de)信號(hao)(hao)經(jing)過硬件(jian)和軟件(jian)的(de)(de)(de)濾波后，再(zai)進行(xing)相位識(shi)別。將(jiang)發射(she)卡鉗(qian)(qian)和接(jie)(jie)(jie)(jie)收(shou)卡鉗(qian)(qian)的(de)(de)(de)箭(jian)頭指(zhi)(zhi)向(xiang)電(dian)(dian)(dian)(dian)(dian)纜(lan)終(zhong)端(duan)，當(dang)接(jie)(jie)(jie)(jie)收(shou)機(ji)卡鉗(qian)(qian)鉗(qian)(qian)住某根電(dian)(dian)(dian)(dian)(dian)纜(lan)，接(jie)(jie)(jie)(jie)收(shou)機(ji)電(dian)(dian)(dian)(dian)(dian)流(liu)表右偏，同時伴有(you)聲(sheng)光(guang)指(zhi)(zhi)示。而鉗(qian)(qian)住其它的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)，電(dian)(dian)(dian)(dian)(dian)流(liu)表左(zuo)偏，電(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向(xiang)與被識(shi)別電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向(xiang)相反，沒有(you)聲(sheng)光(guang)指(zhi)(zhi)示。很(hen)容易將(jiang)被識(shi)別電(dian)(dian)(dian)(dian)(dian)纜(lan)從多根電(dian)(dian)(dian)(dian)(dian)纜(lan)中做出明確判別。又由于(yu)被識(shi)別電(dian)(dian)(dian)(dian)(dian)纜(lan)上的(de)(de)(de)信號(hao)(hao)電(dian)(dian)(dian)(dian)(dian)流(liu)強(qiang)度全線都是(shi)一樣的(de)(de)(de)，接(jie)(jie)(jie)(jie)收(shou)卡鉗(qian)(qian)在電(dian)(dian)(dian)(dian)(dian)纜(lan)沿線所接(jie)(jie)(jie)(jie)收(shou)到的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)磁信號(hao)(hao)強(qiang)度一致，識(shi)別的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)不受被識(shi)別電(dian)(dian)(dian)(dian)(dian)纜(lan)長度的(de)(de)(de)限制。

本儀器的最大特點：
1、將帶電識別和不帶電識別功能合二為一，不僅適合停運電纜的識別與判斷，而且也適合帶電電纜的識別與判斷，操作極其簡單，使用非常方便。
2、該(gai)電(dian)纜(lan)(lan)(lan)識別(bie)(bie)儀在發射端(duan)采用單片機(ji)技(ji)術對發射信(xin)(xin)號進(jin)行編(bian)碼、功率驅(qu)動，將信(xin)(xin)號耦(ou)合到電(dian)纜(lan)(lan)(lan)上；接收(shou)機(ji)中的單片機(ji)對接收(shou)的相(xiang)位(wei)編(bian)碼信(xin)(xin)號解碼和相(xiang)位(wei)識別(bie)(bie)。將目標電(dian)纜(lan)(lan)(lan)從(cong)一大束電(dian)纜(lan)(lan)(lan)中識別(bie)(bie)出來。因(yin)此工作(zuo)性能(neng)可靠，對超長電(dian)纜(lan)(lan)(lan)也能(neng)做到準(zhun)確判別(bie)(bie)，是一種輕小型(xing)、緊湊(cou)型(xing)、便(bian)攜(xie)式儀器。適(shi)用于各種類(lei)型(xing)的高低(di)壓動力(li)電(dian)纜(lan)(lan)(lan)。