穩定性：duiyurenhekongzhixitonglaishuo，doudeyaowendingcainengzhengchanggongzuo。yinci，wendingxingshixitonghenzhongyaodexingneng，yeshiduikongzhixitonghenjibendeyaoqiu。zaishejikongzhixitongshi，bujinyaoqiuxitongwending，erqieyaoqiuyouyidingdewendingyudu，shixitongzaixitongcanshubianhuashirengnengwending。
瞬態特性：duiyuyigewendingdexitong，beikongbianliangzaishuruxinhaohuoraodongdezuoyongxia，congyuanlaidepinghengzhuangtaibianhuadaoxindepinghengzhuangtaideguocheng，yongshuntaitexinglaimiaoshu。yaoqiuxitongdexiangyingguochengkuaisu、平穩。調節時間和很大超調量用來表示係統的瞬態特性。表示係統的快速性，描述係統跟蹤輸入信號的能力。表示響應過程的平穩性。
穩態特性：係(xi)統(tong)的(de)控(kong)製(zhi)精(jing)度(du)用(yong)穩(wen)態(tai)誤(wu)差(cha)來(lai)描(miao)述(shu)。對(dui)於(yu)一(yi)個(ge)穩(wen)定(ding)的(de)係(xi)統(tong)，在(zai)輸(shu)入(ru)信(xin)號(hao)的(de)作(zuo)用(yong)下(xia)，係(xi)統(tong)的(de)輸(shu)出(chu)進(jin)入(ru)響(xiang)應(ying)過(guo)程(cheng)。當(dang)它(ta)接(jie)近(jin)無(wu)窮(qiong)大(da)時(shi)，瞬(shun)態(tai)響(xiang)應(ying)結(jie)束(shu)，係(xi)統(tong)達(da)到(dao)另(ling)一(yi)個(ge)穩(wen)態(tai)。此(ci)時(shi)，係(xi)統(tong)的(de)輸(shu)出(chu)與(yu)給(gei)定(ding)的(de)輸(shu)入(ru)之(zhi)間(jian)是(shi)否(fou)存(cun)在(zai)誤(wu)差(cha)，誤(wu)差(cha)有(you)多(duo)大(da)，這(zhe)就(jiu)是(shi)係(xi)統(tong)的(de)穩(wen)態(tai)性(xing)能(neng)，用(yong)穩(wen)態(tai)誤(wu)差(cha)來(lai)表(biao)示(shi)。可(ke)見(jian)，穩(wen)態(tai)誤(wu)差(cha)是(shi)表(biao)征(zheng)係(xi)統(tong)控(kong)製(zhi)精(jing)度(du)的(de)一(yi)個(ge)指(zhi)標(biao)。設(she)計(ji)控(kong)製(zhi)係(xi)統(tong)時(shi)，希(xi)望(wang)穩(wen)態(tai)誤(wu)差(cha)越(yue)小(xiao)越(yue)好(hao)。
實(shi)驗(yan)是(shi)人(ren)們(men)認(ren)識(shi)客(ke)觀(guan)世(shi)界(jie)很(hen)重(zhong)要(yao)的(de)手(shou)段(duan)之(zhi)一(yi)。做(zuo)好(hao)實(shi)驗(yan)，掌(zhang)握(wo)實(shi)驗(yan)技(ji)能(neng)，不(bu)僅(jin)有(you)助(zhu)於(yu)學(xue)好(hao)這(zhe)門(men)課(ke)，還(hai)能(neng)培(pei)養(yang)科(ke)學(xue)思(si)維(wei)能(neng)力(li)和(he)動(dong)手(shou)能(neng)力(li)，養(yang)成(cheng)良(liang)好(hao)的(de)科(ke)學(xue)習(xi)慣(guan)。所(suo)以(yi)在(zai)學(xue)好(hao)這(zhe)門(men)課(ke)的(de)同(tong)時(shi)，也(ye)要(yao)認(ren)真(zhen)完(wan)成(cheng)實(shi)驗(yan)，先(xian)預(yu)習(xi)實(shi)驗(yan)，仔(zai)細(xi)準(zhun)確(que)地(di)觀(guan)察(cha)實(shi)驗(yan)過(guo)程(cheng)，正(zheng)確(que)掌(zhang)握(wo)所(suo)有(you)的(de)實(shi)驗(yan)技(ji)術(shu)。
