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技術文章Article 當前位置:首頁 > 技術文章 > 無線液位傳感器的工作原理
無線液位傳感器的工作原理
點擊次數:905 更新時間:2021-12-06

傳(chuan)感(gan)器采用(yong)壓阻(zu)(zu)(zu)式(shi)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)原理,它的(de)(de)核心部(bu)件(jian)電(dian)(dian)阻(zu)(zu)(zu)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片是(shi)一(yi)(yi)種將(jiang)被(bei)測件(jian)上的(de)(de)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)(hua)(hua)轉換成(cheng)為一(yi)(yi)種電(dian)(dian)信(xin)號(hao)的(de)(de)敏(min)感(gan)器件(jian)。它是(shi)傳(chuan)感(gan)器的(de)(de)主要組成(cheng)部(bu)分之(zhi)一(yi)(yi)。電(dian)(dian)阻(zu)(zu)(zu)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片應(ying)用(yong)最多的(de)(de)是(shi)金屬電(dian)(dian)阻(zu)(zu)(zu)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片和(he)半導體應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片兩種。金屬電(dian)(dian)阻(zu)(zu)(zu)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片又(you)有絲狀(zhuang)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片和(he)金屬箔狀(zhuang)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片兩種。通常(chang)是(shi)將(jiang)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片通過(guo)特殊的(de)(de)粘和(he)劑緊密的(de)(de)粘合在產(chan)生(sheng)(sheng)(sheng)力(li)(li)學應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)基體上,當基體受力(li)(li)發生(sheng)(sheng)(sheng)應(ying)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)(hua)(hua)時(shi),電(dian)(dian)阻(zu)(zu)(zu)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片也一(yi)(yi)起產(chan)生(sheng)(sheng)(sheng)形變(bian)(bian)(bian)(bian)(bian)(bian),使應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片的(de)(de)阻(zu)(zu)(zu)值發生(sheng)(sheng)(sheng)改變(bian)(bian)(bian)(bian)(bian)(bian),從而(er)(er)使加(jia)在電(dian)(dian)阻(zu)(zu)(zu)上的(de)(de)電(dian)(dian)壓發生(sheng)(sheng)(sheng)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)(hua)(hua)。這種應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片在受力(li)(li)時(shi)產(chan)生(sheng)(sheng)(sheng)的(de)(de)阻(zu)(zu)(zu)值變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)(hua)(hua)通常(chang)較小,一(yi)(yi)般這種應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)片都組成(cheng)應(ying)變(bian)(bian)(bian)(bian)(bian)(bian)電(dian)(dian)橋,從而(er)(er)使阻(zu)(zu)(zu)抗的(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)(hua)(hua)轉換成(cheng)數字信(xin)號(hao)。

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