電(dian)導率(lv)電(dian)極的分類

電(dian)導率(lv)電(dian)極，簡(jian)稱(cheng)也就(jiu)是電(dian)導電(dian)極了，其結(jie)構(gou)原(yuan)理有(you)區(qu)別(bie)於(yu)PH電(dian)極。電(dian)導電(dian)極壹(yi)般(ban)分為兩種(zhong)類型(xing)：二(er)電(dian)極式(shi)電(dian)導電(dian)極、多(duo)電(dian)極式(shi)電(dian)導電(dian)極

概(gai)述
電(dian)導率(lv)電(dian)極是(shi)在保證(zheng)性(xing)能(neng)的基礎上簡(jian)化了功(gong)能，從(cong)而具有(you)了特(te)別強的價格(ge)優(you)勢。清(qing)晰(xi)的顯示、簡(jian)易的操作和(he)優(you)良(liang)的測試性(xing)能(neng)使(shi)其具有(you)很(hen)高的性(xing)價比(bi)。可(ke)廣泛(fan)應用(yong)於(yu)火電(dian)、化工化肥、冶(ye)金、環(huan)保、制藥(yao)、生(sheng)化、食品和(he)自(zi)來水等溶(rong)液(ye)中電(dian)導率(lv)值(zhi)的連續監測。

分(fen)類
電(dian)導率(lv)儀(yi)電(dian)極壹(yi)般(ban)分為二(er)電(dian)極式(shi)和(he)多(duo)電(dian)極式(shi)兩種(zhong)類型(xing)。
　　二(er)電(dian)極式(shi)電(dian)導率(lv)儀(yi)電(dian)極是(shi)目(mu)前(qian)國(guo)內使(shi)用多(duo)的電(dian)導電(dian)極類型(xing)，電(dian)極式(shi)電(dian)導率(lv)儀(yi)電(dian)極的結(jie)構(gou)是將(jiang)二(er)片鉑片燒(shao)結(jie)在二平(ping)行(xing)玻(bo)璃片上，或(huo)圓(yuan)形玻(bo)璃管(guan)的內壁(bi)上，調節鉑片的面積(ji)和(he)距(ju)離，就(jiu)可(ke)以制成不(bu)同常(chang)數(shu)值的電(dian)導率(lv)儀(yi)電(dian)極。通(tong)常(chang)有(you)K=1、K=5、K=10等類型(xing)。而(er)在線(xian)電(dian)導率(lv)儀(yi)上使用的二電(dian)極式(shi)電(dian)導電(dian)極常(chang)制成圓(yuan)柱(zhu)形對(dui)稱的電(dian)極。當(dang)K=1時(shi)，常(chang)采(cai)用石(shi)墨，當(dang)K=0.1、0.01時(shi)，材(cai)料(liao)可(ke)以是不(bu)銹鋼(gang)或(huo)鈦合(he)金(jin)。多(duo)電(dian)極式(shi)電(dian)導電(dian)極，壹(yi)般(ban)在支(zhi)持(chi)體上有(you)幾(ji)個環(huan)狀的電(dian)極，通(tong)過(guo)環(huan)狀電(dian)極的串聯和(he)並(bing)聯的不同(tong)組合(he)，可(ke)以制成不(bu)同常(chang)數(shu)的電(dian)導電(dian)極。環(huan)狀電(dian)極的材(cai)料(liao)可(ke)以是石(shi)墨、不(bu)銹(xiu)鋼(gang)、鈦合金(jin)和(he)鉑(bo)金(jin)。
　　電(dian)導電(dian)極還有(you)四電(dian)極類型(xing)和(he)電(dian)磁式(shi)類型(xing)。四(si)電(dian)極電(dian)導率(lv)儀(yi)電(dian)極的優點(dian)是可(ke)以避免電(dian)極極(ji)化帶來的測量(liang)誤(wu)差(cha)，在國(guo)外(wai)的實驗(yan)式和(he)在線(xian)式電(dian)導率(lv)儀(yi)上較(jiao)多(duo)使(shi)用(yong)。電(dian)磁式(shi)電(dian)導電(dian)極的特點(dian)是適宜(yi)於(yu)測量(liang)高(gao)電(dian)導率(lv)的溶(rong)液(ye)，壹(yi)般(ban)用於(yu)工(gong)業電(dian)導率(lv)儀(yi)中，或(huo)利(li)用(yong)其測量(liang)原(yuan)理制成單(dan)組(zu)分的濃(nong)度(du)計，如鹽(yan)酸(suan)濃(nong)度(du)計、硝酸(suan)濃(nong)度(du)計等。