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位移傳感器說明

作為測量(liang)(liang)位移的(de)重(zhong)要方式，與非接觸式原理的(de)位置測量(liang)(liang)傳感(gan)器相(xiang)比，性能更加穩定(ding)可靠，可應用(yong)于(yu)各種場合(he)，比較典型的(de)應用(yong)于(yu)游戲機踏腳板的(de)位移測量(liang)(liang)、開合(he)模位置和頂桿頂出位置等。量(liang)(liang)程為0~25mm~900mm,不同型號可以(yi)選擇不同輸出(chu)信號，可mV的信號或(huo)4-20mA.0-10V的信號，產品(pin)采用鋁外殼，設計(ji)簡潔，結構(gou)緊(jin)湊，便于(yu)用戶(hu)安裝。

位(wei)移(yi)(yi)是(shi)和物體的(de)(de)位(wei)置在運動(dong)過程中的(de)(de)移(yi)(yi)動(dong)有關(guan)的(de)(de)量，位(wei)移(yi)(yi)的(de)(de)測量方式(shi)所涉及的(de)(de)范圍是(shi)相(xiang)當廣泛的(de)(de)。小位(wei)移(yi)(yi)通常用應變式(shi)、電感(gan)式(shi)、差動(dong)變壓(ya)器(qi)(qi)式(shi)、渦(wo)流(liu)式(shi)、霍爾傳感(gan)器(qi)(qi)來檢(jian)測，大的(de)(de)位(wei)移(yi)(yi)常用感(gan)應同步器(qi)(qi)、光柵、容柵、磁柵等(deng)傳感(gan)技(ji)術來測量。

小位移(yi)(yi)通常用(yong)應(ying)變式(shi)、電(dian)感(gan)(gan)(gan)式(shi)、差動(dong)變壓器式(shi)、渦(wo)流式(shi)、霍爾(er)傳感(gan)(gan)(gan)器來檢測(ce)(ce)，大的(de)位移(yi)(yi)常用(yong)感(gan)(gan)(gan)應(ying)同步器、光柵(zha)、容柵(zha)、磁柵(zha)等傳感(gan)(gan)(gan)技術來測(ce)(ce)量。其中光柵(zha)傳感(gan)(gan)(gan)器因具有易實現數字化、精(jing)度高（目前(qian)分辨率最高的(de)可達到(dao)納米級(ji)）、抗力(li)強、沒有人(ren)為讀數誤差、安裝(zhuang)方便(bian)、使用(yong)可靠等優點，在機床加工、檢測(ce)(ce)儀表等行(xing)業(ye)中得到(dao)日益廣泛的(de)應(ying)用(yong)。

位移傳感器說明

產品特點

●   帶復位彈簧

●   使用壽命長，線性優異

●   重復性0.02mm

●   長期穩定性好，抗強

●   mv的信號或電壓、電流模擬或數字(zi)信號輸出。

原理

電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器式(shi)位(wei)(wei)(wei)(wei)移(yi)(yi)傳(chuan)感器，它通過電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器元(yuan)件將機械位(wei)(wei)(wei)(wei)移(yi)(yi)轉換成(cheng)與之(zhi)成(cheng)線性或(huo)任意函(han)數關系的(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)或(huo)電(dian)(dian)(dian)(dian)(dian)壓(ya)輸出(chu)。普通直線電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器和(he)圓(yuan)形(xing)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器都可分別用作直線位(wei)(wei)(wei)(wei)移(yi)(yi)和(he)角位(wei)(wei)(wei)(wei)移(yi)(yi)傳(chuan)感器。但是，為(wei)實現測量位(wei)(wei)(wei)(wei)移(yi)(yi)目的(de)(de)而(er)設計的(de)(de)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器，要(yao)求在(zai)(zai)位(wei)(wei)(wei)(wei)移(yi)(yi)變(bian)(bian)化(hua)(hua)和(he)電(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)(bian)化(hua)(hua)之(zhi)間有一(yi)個確定(ding)關系。電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器式(shi)位(wei)(wei)(wei)(wei)移(yi)(yi)傳(chuan)感器的(de)(de)可動(dong)電(dian)(dian)(dian)(dian)(dian)刷(shua)與被測物體相連。物體的(de)(de)位(wei)(wei)(wei)(wei)移(yi)(yi)引起(qi)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器移(yi)(yi)動(dong)端(duan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)(bian)化(hua)(hua)。阻(zu)值(zhi)的(de)(de)變(bian)(bian)化(hua)(hua)量反映了位(wei)(wei)(wei)(wei)移(yi)(yi)的(de)(de)量值(zhi)，阻(zu)值(zhi)的(de)(de)增加還是減小則表明(ming)了位(wei)(wei)(wei)(wei)移(yi)(yi)的(de)(de)方向。通常在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器上通以電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)壓(ya)，以把電(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)(bian)化(hua)(hua)轉換為(wei)電(dian)(dian)(dian)(dian)(dian)壓(ya)輸出(chu)。線繞式(shi)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器由于其(qi)(qi)電(dian)(dian)(dian)(dian)(dian)刷(shua)移(yi)(yi)動(dong)時電(dian)(dian)(dian)(dian)(dian)阻(zu)以匝電(dian)(dian)(dian)(dian)(dian)阻(zu)為(wei)階梯而(er)變(bian)(bian)化(hua)(hua)，其(qi)(qi)輸出(chu)特性亦呈(cheng)階梯形(xing)。