管線(xian)(xian)探(tan)(tan)測儀用于地下管線(xian)(xian)路(lu)由的(de)定位、深(shen)度(du)(du)測量和(he)(he)長距離的(de)追尋(xun)。管線(xian)(xian)探(tan)(tan)測儀采用了雙水平(ping)線(xian)(xian)圈和(he)(he)筆直線(xian)(xian)圈電(dian)磁技術，提高了管線(xian)(xian)定位定深(shen)的(de)精度(du)(du)和(he)(he)目標(biao)管線(xian)(xian)的(de)辨認(ren)能力，在管線(xian)(xian)密(mi)布雜亂(luan)的(de)區域也能精確地對目標(biao)管線(xian)(xian)進行追尋(xun)和(he)(he)定位。利用電(dian)磁感應原(yuan)理探(tan)(tan)測金(jin)屬(shu)管線(xian)(xian)、電(dian)/光(guang)纜(lan)，以及一些帶(dai)有金(jin)屬(shu)標(biao)志線(xian)(xian)的(de)非金(jin)屬(shu)管線(xian)(xian)，優點是探(tan)(tan)測速度(du)(du)快、簡(jian)單直觀、操作方便、度(du)(du)高。

　　地(di)埋(mai)(mai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)管(guan)(guan)線(xian)探(tan)(tan)測(ce)(ce)(ce)(ce)儀(yi)具有地(di)下(xia)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)探(tan)(tan)測(ce)(ce)(ce)(ce)中的(de)(de)(de)四大功能(neng)，全(quan)面滿(man)足各(ge)項電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)探(tan)(tan)測(ce)(ce)(ce)(ce)的(de)(de)(de)全(quan)面需求(qiu)。地(di)埋(mai)(mai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)管(guan)(guan)線(xian)探(tan)(tan)測(ce)(ce)(ce)(ce)儀(yi)主要功能(neng)有帶(dai)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)途徑查找及尋蹤(zong)、運轉(zhuan)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)途徑查找及尋蹤(zong)、運轉(zhuan)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)辨認(ren)判(pan)別、施工過程中的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)普查、多(duo)(duo)種辦法(fa)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)深度的(de)(de)(de)精確(que)判(pan)讀。因而為了(le)確(que)保地(di)埋(mai)(mai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)安全(quan)運轉(zhuan)，就需要對地(di)埋(mai)(mai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)進行(xing)有效(xiao)地(di)多(duo)(duo)功能(neng)地(di)探(tan)(tan)測(ce)(ce)(ce)(ce)。地(di)埋(mai)(mai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)管(guan)(guan)線(xian)探(tan)(tan)測(ce)(ce)(ce)(ce)儀(yi)探(tan)(tan)測(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)長度不小于3公里。接收機能(neng)探(tan)(tan)測(ce)(ce)(ce)(ce)運轉(zhuan)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)50Hz頻(pin)率。這種作業方式(shi)關于區別地(di)下(xia)帶(dai)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)及帶(dai)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、不帶(dai)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)及金屬管(guan)(guan)探(tan)(tan)測(ce)(ce)(ce)(ce)有很實用的(de)(de)(de)用處。地(di)埋(mai)(mai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)管(guan)(guan)線(xian)探(tan)(tan)測(ce)(ce)(ce)(ce)儀(yi)的(de)(de)(de)作業頻(pin)率挑(tiao)選(xuan)為50Hz頻(pin)率，作業形式(shi)為波峰法(fa)或波谷法(fa)。

　　關(guan)于(yu)(yu)直接(jie)(jie)(jie)短路或斷線故障用萬用表可直接(jie)(jie)(jie)測量判別，關(guan)于(yu)(yu)非(fei)直接(jie)(jie)(jie)短路和接(jie)(jie)(jie)地毛病，用兆歐表遙測芯(xin)線間絕(jue)緣(yuan)電(dian)(dian)阻或芯(xin)線對地絕(jue)緣(yuan)電(dian)(dian)阻，依(yi)據其阻值可判別毛病類型。地埋電(dian)(dian)纜管線探測儀再精(jing)確測量電(dian)(dian)纜實際(ji)長度，依(yi)照電(dian)(dian)纜長度與電(dian)(dian)阻的(de)正比例(li)關(guan)系，計算出毛病點。該(gai)辦法關(guan)于(yu)(yu)電(dian)(dian)纜芯(xin)線間直接(jie)(jie)(jie)短路或短路點接(jie)(jie)(jie)觸電(dian)(dian)阻小于(yu)(yu)1Ω的(de)毛病，判別差錯一般不(bu)大于(yu)(yu)3m，關(guan)于(yu)(yu)毛病點接(jie)(jie)(jie)觸電(dian)(dian)阻大于(yu)(yu)1Ω的(de)毛病，可采用加高電(dian)(dian)壓燒穿(chuan)的(de)辦法使電(dian)(dian)阻降(jiang)至1Ω以下，再按此辦法測量，需(xu)要精(jing)確的(de)測出其敷設途徑。