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壓(ya)(ya)力變遞(di)器(qi)不僅可以從測星(xing)使用(yong)角度劃分,也可以按照壓(ya)(ya)力變送器(qi)的結構規模分類(lei)。由于(yu)壓(ya)(ya)力變送器(qi)是可以測液體介質，考慮到使用(yong)于(yu)石油(you)石化(hua)行業(ye),液體往(wang)往(wang)是有腐(fu)蝕(shi)性,對精度儀器(qi)產生破壞.造成維修鑄后續(xu)工作，基(ji)于(yu)此(ci)原因,將壓(ya)(ya)力變送器(qi)劃分成般型和隔離型。

      一(yi)(yi)(yi)般(ban)型壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)是(shi)通(tong)過低保護(hu)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)黑盒中的內膜(mo)與被測介(jie)質(zhi)(zhi)接(jie)觸.而隔離(li)型的壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)內膜(mo)中密(mi)封的是(shi)硅油,作為種保護(hu)液存在于(yu)(yu)(yu)膜(mo)盒中，而接(jie)介(jie)質(zhi)(zhi)是(shi)壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)的外(wai)膜(mo),當被測介(jie)質(zhi)(zhi)受壓(ya)(ya)(ya)(ya)于(yu)(yu)(yu)外(wai)膜(mo)時(shi),內膜(mo)中的硅油保護(hu)液將壓(ya)(ya)(ya)(ya)力(li)(li)(li)傳遞到一(yi)(yi)(yi)般(ban)膜(mo)盒上，而另一(yi)(yi)(yi)點，隔離(li)型壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)對于(yu)(yu)(yu)一(yi)(yi)(yi)般(ban)壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)優點在于(yu)(yu)(yu)不會(hui)(hui)將導壓(ya)(ya)(ya)(ya)管膜(mo)盒室堵(du)塞。由(you)于(yu)(yu)(yu)被測介(jie)質(zhi)(zhi)佛常帶相污油物質(zhi)(zhi)，經常性的會(hui)(hui)堵(du)住膜(mo)盒甚至由(you)于(yu)(yu)(yu)介(jie)質(zhi)(zhi)脫離(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)，就(jiu)會(hui)(hui)產(chan)生結(jie)晶(jing)，這(zhe)樣(yang)就(jiu)迫使該(gai)介(jie)質(zhi)(zhi)從(cong)壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)中抽出(chu)，這(zhe)樣(yang)就(jiu)會(hui)(hui)導致壓(ya)(ya)(ya)(ya)力(li)(li)(li)變(bian)(bian)(bian)送(song)(song)器(qi)(qi)(qi)不能正(zheng)常運作，會(hui)(hui)大面積癱瘓,延誤工期(qi)。