安徽天康3051T型壓力變送器工作原理（灌充液：硅油、惰性油） 3051T型壓(ya)(ya)(ya)力(li)(li)變(bian)送器(qi)(qi)(qi)工(gong)作原理(li)：工(gong)作時，高、低(di)壓(ya)(ya)(ya)側的(de)(de)隔(ge)離(li)膜片(pian)和(he)灌充液(ye)將過程壓(ya)(ya)(ya)力(li)(li)傳(chuan)(chuan)(chuan)遞給灌充液(ye)，接著灌充液(ye)將壓(ya)(ya)(ya)力(li)(li)傳(chuan)(chuan)(chuan)遞到傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)中(zhong)心的(de)(de)傳(chuan)(chuan)(chuan)感(gan)(gan)膜片(pian)上。3051壓(ya)(ya)(ya)力(li)(li)變(bian)送器(qi)(qi)(qi)傳(chuan)(chuan)(chuan)感(gan)(gan)膜片(pian)是(shi)一(yi)(yi)個張(zhang)緊的(de)(de)彈(dan)性元件，其位(wei)(wei)移隨所受壓(ya)(ya)(ya)而變(bian)化（對于3051GP壓(ya)(ya)(ya)力(li)(li)變(bian)送器(qi)(qi)(qi)，大氣壓(ya)(ya)(ya)如同施加在傳(chuan)(chuan)(chuan)感(gan)(gan)膜片(pian)的(de)(de)低(di)壓(ya)(ya)(ya)側一(yi)(yi)樣）。3051AP絕壓(ya)(ya)(ya)變(bian)送器(qi)(qi)(qi)，低(di)壓(ya)(ya)(ya)側始終(zhong)保持一(yi)(yi)個參考壓(ya)(ya)(ya)力(li)(li)。傳(chuan)(chuan)(chuan)感(gan)(gan)膜片(pian)的(de)(de)zui大位(wei)(wei)移量為(wei)0.004英寸（0.1毫米），且位(wei)(wei)移量與壓(ya)(ya)(ya)力(li)(li)成(cheng)正比。兩側的(de)(de)電(dian)容極板檢測傳(chuan)(chuan)(chuan)感(gan)(gan)膜片(pian)的(de)(de)位(wei)(wei)置。傳(chuan)(chuan)(chuan)感(gan)(gan)膜片(pian)和(he)電(dian)容極板之間(jian)電(dian)容的(de)(de)差值被轉換(huan)為(wei)相應的(de)(de)電(dian)流，電(dian)壓(ya)(ya)(ya)或數字（高速可(ke)尋址遠程發(fa)送器(qi)(qi)(qi)數據公(gong)路）輸出(chu)信號

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