剛剛接觸雷達物位計的用戶，可能對物位測量、料位計、液位計這幾(ji)個詞混淆不(bu)清(qing)，不(bu)知道它們(men)的概念和區別，今天(tian)小編簡單(dan)給大家(jia)科普一(yi)下。

首(shou)先說說物位(wei)(wei)(wei)測(ce)(ce)量(liang)(liang)，物位(wei)(wei)(wei)測(ce)(ce)量(liang)(liang)通常(chang)是指在工業生產(chan)過程(cheng)中，對封閉或開放容器中物料(liao)高度(du)的檢測(ce)(ce)，如果是對物料(liao)高度(du)的連續檢測(ce)(ce)，則稱為連續測(ce)(ce)量(liang)(liang)。如果只對物料(liao)高度(du)達到某個位(wei)(wei)(wei)置進(jin)行測(ce)(ce)量(liang)(liang)，則稱為限(xian)位(wei)(wei)(wei)測(ce)(ce)量(liang)(liang)。

然后是(shi)料(liao)(liao)位(wei)(wei)計和(he)液位(wei)(wei)計，料(liao)(liao)位(wei)(wei)計是(shi)一種(zhong)能夠實(shi)時、連(lian)續(xu)檢測(ce)容(rong)器內固體物料(liao)(liao)高度(du)變(bian)(bian)(bian)化的(de)傳感器。液位(wei)(wei)計是(shi)指，連(lian)續(xu)實(shi)時檢測(ce)容(rong)器內液體高度(du)變(bian)(bian)(bian)化的(de)傳感器。這(zhe)種(zhong)傳感器通(tong)常(chang)輸出4-20mA或(huo)1-5V的(de)標準信(xin)號，并與顯示儀表(biao)或(huo)計算機(ji)系統相連(lian)。它還(huan)可以通(tong)過RS-485或(huo)現場總(zong)線與計算系統連(lian)接，料(liao)(liao)位(wei)(wei)計和(he)液位(wei)(wei)計有(you)時稱(cheng)為料(liao)(liao)位(wei)(wei)變(bian)(bian)(bian)送器或(huo)液位(wei)(wei)變(bian)(bian)(bian)送器。

最后(hou)是(shi)(shi)料位(wei)(wei)(wei)(wei)(wei)開(kai)關(guan)和(he)液(ye)位(wei)(wei)(wei)(wei)(wei)開(kai)關(guan)，料位(wei)(wei)(wei)(wei)(wei)開(kai)關(guan)(也稱為料位(wei)(wei)(wei)(wei)(wei)限位(wei)(wei)(wei)(wei)(wei)開(kai)關(guan))是(shi)(shi)一種(zhong)傳(chuan)感(gan)器(qi)(qi)，用于(yu)檢測容器(qi)(qi)中固(gu)體材料的高度是(shi)(shi)否(fou)達(da)到特定(ding)位(wei)(wei)(wei)(wei)(wei)置。液(ye)位(wei)(wei)(wei)(wei)(wei)開(kai)關(guan)(也稱液(ye)位(wei)(wei)(wei)(wei)(wei)限位(wei)(wei)(wei)(wei)(wei)開(kai)關(guan))是(shi)(shi)一種(zhong)傳(chuan)感(gan)器(qi)(qi)，用于(yu)檢測容器(qi)(qi)中液(ye)體的高度是(shi)(shi)否(fou)達(da)到特定(ding)位(wei)(wei)(wei)(wei)(wei)置(通常(chang)為上(shang)限或下限)。這種(zhong)傳(chuan)感(gan)器(qi)(qi)通常(chang)輸(shu)出(chu)繼電器(qi)(qi)的接點(dian)信號或開(kai)路信號，輸(shu)出(chu)信號一般與驅動指示器(qi)(qi)、報警器(qi)(qi)或輸(shu)入PLC聯鎖，進(jin)行(xing)順序控制。