智能型壓力變送器的(de)(de)主要作用(yong)(yong)(yong)把壓(ya)(ya)力(li)(li)(li)信號(hao)傳(chuan)到電(dian)子(zi)設備，進而在計算機顯示(shi)壓(ya)(ya)力(li)(li)(li)其原理大致是(shi)：將水(shui)壓(ya)(ya)這種壓(ya)(ya)力(li)(li)(li)的(de)(de)力(li)(li)(li)學信號(hao)轉變成電(dian)流（4-20mA）這樣的(de)(de)電(dian)子(zi)信號(hao)壓(ya)(ya)力(li)(li)(li)和(he)電(dian)壓(ya)(ya)或(huo)電(dian)流大小(xiao)成線性(xing)關系(xi)，一(yi)般是(shi)正比關系(xi)。所(suo)以，變送(song)器輸出的(de)(de)電(dian)壓(ya)(ya)或(huo)電(dian)流隨壓(ya)(ya)力(li)(li)(li)增大而增大由此(ci)得(de)出一(yi)個壓(ya)(ya)力(li)(li)(li)和(he)電(dian)壓(ya)(ya)或(huo)電(dian)流的(de)(de)關系(xi)式壓(ya)(ya)力(li)(li)(li)變送(song)器的(de)(de)被測(ce)(ce)介質的(de)(de)兩種壓(ya)(ya)力(li)(li)(li)通入(ru)高、低(di)兩壓(ya)(ya)力(li)(li)(li)室，低(di)壓(ya)(ya)室壓(ya)(ya)力(li)(li)(li)采用(yong)(yong)(yong)大氣(qi)壓(ya)(ya)或(huo)真空，作用(yong)(yong)(yong)在δ元(yuan)(yuan)（即(ji)敏感元(yuan)(yuan)件(jian)）的(de)(de)兩側隔離膜(mo)片(pian)上(shang)，通過(guo)隔離片(pian)和(he)元(yuan)(yuan)件(jian)內的(de)(de)填充液(ye)傳(chuan)送(song)到測(ce)(ce)量膜(mo)片(pian)兩側。

智能型壓力變送器參數：