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  彈(dan)性(xing)體（彈(dan)性(xing)元件，敏感梁）在(zai)外(wai)(wai)力(li)作用下(xia)產生(sheng)彈(dan)性(xing)變(bian)形，使粘(zhan)貼在(zai)他(ta)表面(mian)的電(dian)(dian)(dian)阻應變(bian)片（轉換(huan)(huan)元件）也隨同產生(sheng)變(bian)形，電(dian)(dian)(dian)阻應變(bian)片變(bian)形后，它(ta)的阻值(zhi)將發生(sheng)變(bian)化（增大或減小(xiao)），再經過惠(hui)斯頓電(dian)(dian)(dian)橋將這一電(dian)(dian)(dian)阻變(bian)化轉換(huan)(huan)為(wei)電(dian)(dian)(dian)壓信號(hao)，從而完成了(le)將外(wai)(wai)力(li)變(bian)換(huan)(huan)為(wei)電(dian)(dian)(dian)信號(hao)的過程。

  傳(chuan)統的模擬(ni)式電(dian)阻(zu)應(ying)變式傳(chuan)感器(qi)就是由電(dian)阻(zu)應(ying)變片、彈(dan)性體和惠斯頓橋路組成，后端還需要儀表(biao)或者變送(song)器(qi)，將電(dian)壓(ya)信號轉換成數字量。

  目(mu)前數(shu)字(zi)式傳(chuan)感(gan)器(qi)在傳(chuan)感(gan)器(qi)內集成了(le)A/D轉換(huan)，直(zhi)接輸出數(shu)字(zi)量信號，可直(zhi)接供(gong)客戶使用(yong)。對于(yu)多傳(chuan)感(gan)器(qi)稱(cheng)(cheng)重系統，客戶還需(xu)(xu)要進行稱(cheng)(cheng)重相關的設(she)置，因此(ci)，一般數(shu)字(zi)傳(chuan)感(gan)器(qi)還需(xu)(xu)要配合儀表一起(qi)使用(yong)。