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位移傳感器說明

作為測(ce)(ce)量(liang)位(wei)(wei)移的(de)重(zhong)要方式(shi)，與非接觸式(shi)原(yuan)理的(de)位(wei)(wei)置(zhi)測(ce)(ce)量(liang)傳感器相(xiang)比(bi)，性(xing)能更加(jia)穩定(ding)可(ke)靠，可(ke)應用(yong)于各(ge)種(zhong)場合，比(bi)較(jiao)典型(xing)的(de)應用(yong)于游戲機踏(ta)腳板的(de)位(wei)(wei)移測(ce)(ce)量(liang)、開合模位(wei)(wei)置(zhi)和(he)頂(ding)桿頂(ding)出位(wei)(wei)置(zhi)等(deng)。量(liang)程為0~25mm~900mm,不同型(xing)號可(ke)以選擇不(bu)同(tong)輸出信(xin)號(hao)，可mV的信(xin)號(hao)或(huo)4-20mA.0-10V的信(xin)號(hao)，產品采用(yong)鋁外殼，設計簡(jian)潔(jie)，結構緊湊，便于(yu)用(yong)戶(hu)安裝。

位(wei)移(yi)(yi)(yi)是(shi)和物體的(de)位(wei)置在運動過程(cheng)中的(de)移(yi)(yi)(yi)動有關的(de)量，位(wei)移(yi)(yi)(yi)的(de)測量方式(shi)所涉及的(de)范圍是(shi)相當廣泛(fan)的(de)。小位(wei)移(yi)(yi)(yi)通常用應變式(shi)、電(dian)感(gan)式(shi)、差動變壓器式(shi)、渦流式(shi)、霍爾(er)傳感(gan)器來檢測，大(da)的(de)位(wei)移(yi)(yi)(yi)常用感(gan)應同步器、光柵、容柵、磁柵等傳感(gan)技術來測量。

小位移(yi)通常(chang)用(yong)應變式(shi)、電(dian)感(gan)式(shi)、差動變壓(ya)器(qi)(qi)式(shi)、渦流式(shi)、霍爾傳(chuan)感(gan)器(qi)(qi)來檢測(ce)，大的位移(yi)常(chang)用(yong)感(gan)應同(tong)步(bu)器(qi)(qi)、光柵(zha)(zha)、容柵(zha)(zha)、磁柵(zha)(zha)等傳(chuan)感(gan)技術來測(ce)量。其中光柵(zha)(zha)傳(chuan)感(gan)器(qi)(qi)因具有易實現(xian)數字化、精度(du)高（目前(qian)分(fen)辨率最高的可達到納米級）、抗(kang)力強、沒有人為(wei)讀數誤(wu)差、安裝方便、使用(yong)可靠(kao)等優點，在機床(chuang)加工、檢測(ce)儀表等行業中得到日益廣泛的應用(yong)。

位移傳感器說明

產品(pin)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(hao)(hao)或電壓、電流模擬或數字信號(hao)(hao)輸(shu)出。

原理

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)式(shi)位(wei)(wei)移傳(chuan)感器(qi)(qi)(qi)(qi)，它(ta)通過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)元件將機械(xie)位(wei)(wei)移轉換(huan)成與之(zhi)成線(xian)性(xing)或任意函數關系的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)輸(shu)出。普(pu)通直線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)和圓形電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)都可分別(bie)用作直線(xian)位(wei)(wei)移和角位(wei)(wei)移傳(chuan)感器(qi)(qi)(qi)(qi)。但(dan)是，為實現(xian)測量位(wei)(wei)移目的(de)而設計(ji)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)，要(yao)求在(zai)位(wei)(wei)移變(bian)(bian)化和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)(bian)化之(zhi)間(jian)有一(yi)個確定(ding)關系。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)式(shi)位(wei)(wei)移傳(chuan)感器(qi)(qi)(qi)(qi)的(de)可動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)刷(shua)與被測物(wu)體相連。物(wu)體的(de)位(wei)(wei)移引(yin)起電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)移動(dong)端的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)(bian)化。阻(zu)值的(de)變(bian)(bian)化量反映(ying)了位(wei)(wei)移的(de)量值，阻(zu)值的(de)增加還是減小則表明了位(wei)(wei)移的(de)方向。通常(chang)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)上通以(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，以(yi)把電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)(bian)化轉換(huan)為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)輸(shu)出。線(xian)繞式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)器(qi)(qi)(qi)(qi)由于其電(dian)(dian)(dian)(dian)(dian)(dian)(dian)刷(shua)移動(dong)時電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)以(yi)匝電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)為階梯而變(bian)(bian)化，其輸(shu)出特性(xing)亦呈階梯形。