溶(rong)(rong)解(jie)(jie)氧(yang)(yang)測(ce)(ce)定儀的(de)(de)工作原理是氧(yang)(yang)透過(guo)隔膜被工作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)還(huan)原，產生與(yu)氧(yang)(yang)濃(nong)(nong)度(du)(du)成正比的(de)(de)擴(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，通(tong)(tong)過(guo)測(ce)(ce)量此電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，得到水(shui)(shui)中(zhong)溶(rong)(rong)解(jie)(jie)氧(yang)(yang)的(de)(de)濃(nong)(nong)度(du)(du)。根(gen)據濃(nong)(nong)度(du)(du)不同，隔膜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)分為極(ji)(ji)譜式和(he)原電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)式兩(liang)(liang)種(zhong)類(lei)型。極(ji)(ji)譜式隔膜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)以銀-氯(lv)化銀作為對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)內(nei)(nei)(nei)部電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)液為，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)外部為厚度(du)(du)25-50μm的(de)(de)聚(ju)乙(yi)烯和(he)聚(ju)四氟(fu)乙(yi)烯薄膜，薄膜擋住了電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)內(nei)(nei)(nei)外液體交流(liu)(liu)，使水(shui)(shui)中(zhong)溶(rong)(rong)解(jie)(jie)氧(yang)(yang)滲入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)內(nei)(nei)(nei)部，兩(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)間的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓控制在(zai)0.5-0.8V，通(tong)(tong)過(guo)外部電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路測(ce)(ce)得擴(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)可(ke)知溶(rong)(rong)解(jie)(jie)氧(yang)(yang)濃(nong)(nong)度(du)(du)。原電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)式用(yong)銀作陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)，鉛作陰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)和(he)銀電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)浸入(ru)氫氧(yang)(yang)化鉀電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)池(chi)中(zhong)，形成兩(liang)(liang)個半電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，外層(ceng)同樣用(yong)薄膜封住。溶(rong)(rong)解(jie)(jie)氧(yang)(yang)在(zai)陽(yang)極(ji)(ji)被還(huan)原，產生擴(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，通(tong)(tong)過(guo)測(ce)(ce)定擴(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)可(ke)得溶(rong)(rong)解(jie)(jie)氧(yang)(yang)濃(nong)(nong)度(du)(du)。

 上面的(de)(de)內容就是(shi)給(gei)朋友(you)們介(jie)紹的(de)(de)關于(yu)溶解氧(yang)測(ce)定儀使用(yong)方法(fa)及其工作(zuo)原理的(de)(de)知識了。溶解氧(yang)測(ce)定儀的(de)(de)應用(yong)也是(shi)很(hen)廣泛(fan)的(de)(de)，而實(shi)驗室所用(yong)的(de)(de)溶解氧(yang)測(ce)定儀為高智能化連(lian)續(xu)監測(ce)儀。可以配(pei)PPb極譜式電極，自動能實(shi)現從ppb級(ji)到(dao)ppm級(ji)的(de)(de)寬范(fan)圍(wei)測(ce)量，是(shi)檢(jian)測(ce)鍋爐給(gei)水(shui)、凝(ning)結水(shui)與環(huan)保污水(shui)等行業(ye)的(de)(de)液體里氧(yang)含(han)量測(ce)量的(de)(de)專用(yong)儀器。