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所(suo)謂漫(man)反(fan)(fan)射(she)(she)式是(shi)指恒光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)源發出的(de)(de)(de)(de)(de)(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)投(tou)射(she)(she)到被(bei)(bei)測(ce)物(wu)上,再(zai)從(cong)被(bei)(bei)測(ce)物(wu)體表面(mian)反(fan)(fan)射(she)(she)后投(tou)射(she)(she)到光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)元件上; 所(suo)謂遮(zhe)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)式是(shi)指當光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)源發出的(de)(de)(de)(de)(de)(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)通量(liang)(liang)經被(bei)(bei)測(ce)物(wu)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)遮(zhe)其中一(yi)(yi)部份,使投(tou)射(she)(she)剄光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)元件上的(de)(de)(de)(de)(de)(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)通量(liang)(liang)改(gai)變,改(gai)變的(de)(de)(de)(de)(de)(de)(de)(de)程度與被(bei)(bei)測(ce)物(wu)體在(zai)(zai)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)路位置(zhi)有關. 光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)二極(ji)(ji)管(guan)(guan)是(shi)z常見(jian)的(de)(de)(de)(de)(de)(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)傳感器。光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)二極(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)外型與一(yi)(yi)般(ban)(ban) 二極(ji)(ji)管(guan)(guan)一(yi)(yi)樣，只(zhi)是(shi)它的(de)(de)(de)(de)(de)(de)(de)(de)管(guan)(guan)殼上開有一(yi)(yi)個嵌著玻璃(li)的(de)(de)(de)(de)(de)(de)(de)(de)窗(chuang)口，以(yi)便于光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)線射(she)(she)入(ru)，為(wei)增(zeng)加受光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)面(mian)積(ji)(ji)，PN結的(de)(de)(de)(de)(de)(de)(de)(de)面(mian)積(ji)(ji)做(zuo)得較(jiao)大，光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)二極(ji)(ji)管(guan)(guan)工作(zuo)在(zai)(zai)反(fan)(fan)向(xiang)偏(pian)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)工作(zuo)狀態下，并與負(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)相(xiang)串聯，當無(wu)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照(zhao)(zhao)(zhao)時(shi)(shi)，它與 普通二極(ji)(ji)管(guan)(guan)一(yi)(yi)樣，反(fan)(fan)向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)很(hen)小(xiao)（<&micro;A），稱為(wei)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)二極(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)暗電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)；當有光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照(zhao)(zhao)(zhao)時(shi)(shi)，載(zai)流(liu)(liu)(liu)子(zi)被(bei)(bei)激發，產生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)-空穴，稱為(wei)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian) 光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)傳感器載(zai)流(liu)(liu)(liu)子(zi)。在(zai)(zai)外電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用下，光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)載(zai)流(liu)(liu)(liu)子(zi)參于導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，形成 比暗電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)大得多(duo)的(de)(de)(de)(de)(de)(de)(de)(de)反(fan)(fan)向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，該反(fan)(fan)向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)稱為(wei)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)(de)大小(xiao)與光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照(zhao)(zhao)(zhao)強度成正比，于是(shi)在(zai)(zai)負(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)上就能(neng)得到隨光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照(zhao)(zhao)(zhao)強度變化而變化的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)信號。 光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)三極(ji)(ji)管(guan)(guan)除了具有光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)二極(ji)(ji)管(guan)(guan)能(neng)將光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)信號轉(zhuan)換 成電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)信號的(de)(de)(de)(de)(de)(de)(de)(de)功能(neng)外，還(huan)有對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)信號放大的(de)(de)(de)(de)(de)(de)(de)(de)功能(neng)。光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)三級管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)外型與一(yi)(yi)般(ban)(ban)三極(ji)(ji)管(guan)(guan)相(xiang)差不大，一(yi)(yi)般(ban)(ban)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)敏(min)(min)(min)三極(ji)(ji)管(guan)(guan)只(zhi)引出兩個極(ji)(ji)——發射(she)(she)極(ji)(ji)和集(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)，基(ji)(ji)極(ji)(ji)不引出，管(guan)(guan)殼同樣開窗(chuang)口，以(yi)便光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)線射(she)(she)入(ru)。為(wei)增(zeng)大光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang) 照(zhao)(zhao)(zhao)，基(ji)(ji)區(qu)面(mian)積(ji)(ji)做(zuo)得很(hen)大，發射(she)(she)區(qu)較(jiao)小(xiao)，入(ru)射(she)(she)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)主要被(bei)(bei)基(ji)(ji)區(qu)吸收。工作(zuo)時(shi)(shi)集(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)結反(fan)(fan)偏(pian)，發射(she)(she)結正偏(pian)。在(zai)(zai)無(wu)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照(zhao)(zhao)(zhao)時(shi)(shi)管(guan)(guan)子(zi)流(liu)(liu)(liu)過的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)暗電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)Iceo=（1+β）Icbo（很(hen)小(xiao)），比一(yi)(yi)般(ban)(ban)三極(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)穿(chuan)透(tou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)還(huan)小(xiao)；當有 光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照(zhao)(zhao)(zhao)時(shi)(shi)，激發大量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)-空穴對(dui)，使得基(ji)(ji)極(ji)(ji)產生的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)Ib增(zeng)大，此刻流(liu)(liu)(liu)過管(guan)(guan)子(zi)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)稱為(wei)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，集(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)Ic=（1+β）Ib，可見(jian)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)三極(ji)(ji)管(guan)(guan)要比光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)二極(ji)(ji)管(guan)(guan)具有更高的(de)(de)(de)(de)(de)(de)(de)(de)靈敏(min)(min)(min)度。

技術數據

•外部示教
•按鍵電位計，示教屏
•探測和作用范圍廣
•既可以反射模式，也可以光柵模式
•識別透明對象
德國Wenglor威格勒ODX202P0007光纖傳感器光學數據
切換遲滯 < 15 %
光線類型 紅光
波長 660 nm
使用壽命（Tu = +25 °C） 100000 h
z大允(yun)許的外部光線 10000 Lux

德國Wenglor威格勒ODX202P0007光纖傳感器電氣數據
供電電壓 10...30 V DC
電流消耗（Ub = 24 V） < 40 mA
切換頻率 2 kHz
響應時間 250 µs
吸合/脫扣時間延遲 0...200 ms
溫度偏差 < 10 %
溫度范圍 -25...60 °C
切換輸出端壓降 < 2,5 V
切換輸出端切換電流 200 mA
抗短路 是
反極性保護 是
防過載 是
示教模式 NT,MT,ZT,DT,TP

這些傳(chuan)感(gan)(gan)器可(ke)連接wenglor（塑料(liao)）光(guang)纖。借(jie)助簡單的(de)(de)示教功(gong)能就可(ke)以很好的(de)(de)對傳(chuan)感(gan)(gan)器進(jin)行調整，保(bao)證能夠在光(guang)柵模式中可(ke)靠地(di)測量透明物體。通過外部示教，作用范圍自動適用于各種應用。無需復雜程序(xu)，即(ji)可(ke)輕松地(di)將傳(chuan)感(gan)(gan)器安裝(zhuang)在DIN標(biao)準軌上。