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位移傳感器說明

作為測量位(wei)(wei)移的重要方式(shi)(shi)，與非接(jie)觸式(shi)(shi)原理(li)的位(wei)(wei)置測量傳感(gan)器相比(bi)，性能更加穩定可靠，可應(ying)用(yong)于(yu)各種場合，比(bi)較典型(xing)的應(ying)用(yong)于(yu)游(you)戲機踏腳板的位(wei)(wei)移測量、開合模位(wei)(wei)置和頂(ding)桿頂(ding)出(chu)位(wei)(wei)置等。量程為0~25mm~900mm,不同型(xing)號(hao)可以選擇不(bu)同輸出信(xin)號(hao)，可mV的信(xin)號(hao)或4-20mA.0-10V的信(xin)號(hao)，產(chan)品采用鋁外(wai)殼，設計簡潔，結構緊湊(cou)，便于(yu)用戶安裝。

位(wei)移是和(he)物體(ti)的(de)位(wei)置在運動過程中的(de)移動有關(guan)的(de)量，位(wei)移的(de)測(ce)量方式所(suo)涉及的(de)范圍是相當廣(guang)泛(fan)的(de)。小位(wei)移通常(chang)用應變(bian)式、電感(gan)式、差動變(bian)壓器(qi)式、渦流式、霍爾傳(chuan)(chuan)感(gan)器(qi)來檢(jian)測(ce)，大的(de)位(wei)移常(chang)用感(gan)應同步器(qi)、光柵、容(rong)柵、磁柵等(deng)傳(chuan)(chuan)感(gan)技術來測(ce)量。

小位移(yi)通常用應變式、電感(gan)式、差(cha)動變壓器(qi)(qi)式、渦流(liu)式、霍爾(er)傳(chuan)感(gan)器(qi)(qi)來檢測，大(da)的位移(yi)常用感(gan)應同步器(qi)(qi)、光柵、容柵、磁柵等(deng)傳(chuan)感(gan)技術來測量。其中光柵傳(chuan)感(gan)器(qi)(qi)因具有易(yi)實現數字化、精(jing)度高（目前(qian)分辨率最(zui)高的可達到(dao)納米(mi)級）、抗力強、沒(mei)有人為讀數誤差(cha)、安裝(zhuang)方便、使用可靠等(deng)優點(dian)，在機床加工(gong)、檢測儀表等(deng)行業中得到(dao)日(ri)益廣泛的應用。

位移傳感器說明

產品特(te)點(dian)

●   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(ya)、電流(liu)模(mo)擬(ni)或數字信號輸出。

原理

電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)式(shi)位(wei)(wei)(wei)(wei)移(yi)傳感器(qi)，它通(tong)過電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)元件將機械位(wei)(wei)(wei)(wei)移(yi)轉換成與之成線性或(huo)任意函數關系的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)或(huo)電(dian)(dian)(dian)(dian)(dian)壓(ya)輸出。普通(tong)直(zhi)線電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)和圓形(xing)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)都可分別用作直(zhi)線位(wei)(wei)(wei)(wei)移(yi)和角(jiao)位(wei)(wei)(wei)(wei)移(yi)傳感器(qi)。但是，為實現測(ce)量(liang)(liang)位(wei)(wei)(wei)(wei)移(yi)目的(de)(de)(de)而(er)設計(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)，要求(qiu)在位(wei)(wei)(wei)(wei)移(yi)變(bian)化(hua)和電(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)化(hua)之間(jian)有一個確定關系。電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)式(shi)位(wei)(wei)(wei)(wei)移(yi)傳感器(qi)的(de)(de)(de)可動電(dian)(dian)(dian)(dian)(dian)刷與被測(ce)物(wu)體相(xiang)連。物(wu)體的(de)(de)(de)位(wei)(wei)(wei)(wei)移(yi)引(yin)起(qi)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)移(yi)動端的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)化(hua)。阻(zu)值(zhi)的(de)(de)(de)變(bian)化(hua)量(liang)(liang)反映(ying)了位(wei)(wei)(wei)(wei)移(yi)的(de)(de)(de)量(liang)(liang)值(zhi)，阻(zu)值(zhi)的(de)(de)(de)增加還是減小則表明(ming)了位(wei)(wei)(wei)(wei)移(yi)的(de)(de)(de)方向。通(tong)常(chang)在電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)上通(tong)以電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)壓(ya)，以把(ba)電(dian)(dian)(dian)(dian)(dian)阻(zu)變(bian)化(hua)轉換為電(dian)(dian)(dian)(dian)(dian)壓(ya)輸出。線繞(rao)式(shi)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)(wei)(wei)器(qi)由(you)于其電(dian)(dian)(dian)(dian)(dian)刷移(yi)動時(shi)電(dian)(dian)(dian)(dian)(dian)阻(zu)以匝電(dian)(dian)(dian)(dian)(dian)阻(zu)為階梯(ti)而(er)變(bian)化(hua)，其輸出特性亦呈階梯(ti)形(xing)。