簡(jian)要描(miao)述：ph自動(dong)(dong)控制儀由檢(jian)(jian)測系(xi)統(tong)（ph電極(ji)），顯(xian)示系(xi)統(tong)（液(ye)(ye)晶(jing)面(mian)板顯(xian)示溶(rong)(rong)液(ye)(ye)中(zhong)的(de)(de)實時ph和設(she)定ph值等(deng)），控制系(xi)統(tong)（內(nei)置蠕(ru)動(dong)(dong)泵）三部分組成。當(dang)ph電極(ji)檢(jian)(jian)測到溶(rong)(rong)液(ye)(ye)中(zhong)的(de)(de)ph與預先(xian)設(she)定的(de)(de)ph值不一致時，控制系(xi)統(tong)（內(nei)置蠕(ru)動(dong)(dong)泵）就會(hui)自動(dong)(dong)觸發蠕(ru)動(dong)(dong)泵，通過(guo)加酸或者加堿(jian)直至(zhi)溶(rong)(rong)液(ye)(ye)中(zhong)的(de)(de)ph與預先(xian)設(she)定的(de)(de)ph一致時，蠕(ru)動(dong)(dong)泵即停止工作，使溶(rong)(rong)液(ye)(ye)中(zhong)的(de)(de)ph一直保持(chi)在(zai)一個數值上(shang)。