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C20E-135303A12西克SICK光電傳感器

西克(SICK)光電傳感器根據(jù)外形尺寸和安裝方式分為迷你型、小型,、緊湊型,、光纖型和圓柱形,；從工作方式分為漫反射、鏡反射和對(duì)射型,。

西克(SICK)工業(yè)傳感器系列包括：自動(dòng)化領(lǐng)域的光電傳感器、光纖放大器、色標(biāo)傳感器,、接近傳感器、磁性氣缸傳感器,，以及測(cè)量光幕,，充分反映了西克60多年來(lái)在與各個(gè)工業(yè)自動(dòng)化部門(mén)真誠(chéng)合作過(guò)程中具體的實(shí)踐經(jīng)驗(yàn)。這些工業(yè)傳感器主要用于：對(duì)物體記錄,、計(jì)數(shù),、分類和定位,，檢測(cè)物體的外形和位置，并能進(jìn)行顏色和表面特性的區(qū)分,。

西克（SICK）傳感器首先把被測(cè)量的變化轉(zhuǎn)換成光信號(hào)的變化,，然后借助光電元件進(jìn)一步將光信號(hào)轉(zhuǎn)換成電信號(hào)。光電傳感器一般由光源,、光學(xué)通路和光電元件三部分組成,。由光通量對(duì)光電元件的作用原理不同所制成的光學(xué)測(cè)控系統(tǒng)是多種多樣的，按光電元件(光學(xué)測(cè)控系統(tǒng))輸出量性質(zhì)可分二類,，即模擬式光電傳感器和脈沖(開(kāi)關(guān))式光電傳感器,，模擬式光電傳感器是將被測(cè)量轉(zhuǎn)換光電傳感器成連續(xù)變化的光電流，它與被測(cè)量間呈單值關(guān)系,。模擬式光電傳感器按被測(cè)量(檢測(cè)目標(biāo)物體)方法可分為透射(吸收)式,漫反射式,，遮光式(光束阻檔)三大類。所謂透射式是指被測(cè)物體放在光路中,，恒光源發(fā)出的光能量穿過(guò)被測(cè)物,，部份被吸收后，透射光投射到光電元件上,；所謂漫反射式是指恒光源發(fā)出的光投射到被測(cè)物上,，再?gòu)谋粶y(cè)物體表面反射后投射到光電元件上;所謂遮光式是指當(dāng)光源發(fā)出的光通量經(jīng)被測(cè)物光遮其中一部份，使投射剄光電元件上的光通量改變,改變的程度與被測(cè)物體在光路位置有關(guān),，光敏二極管是zui常見(jiàn)的光傳感器,。光敏二極管的外型與一般二極管一樣，只是它的管殼上開(kāi)有一個(gè)嵌著玻璃的窗口,，以便于光線射入,，為增加受光面積，PN結(jié)的面積做得較大,，光敏二極管工作在反向偏置的工作狀態(tài)下,，并與負(fù)載電阻相串聯(lián)，當(dāng)無(wú)光照時(shí),，它與普通二極管一樣,，反向電流很小（<&micro;A）,，稱為光敏二極管的暗電流,；當(dāng)有光照時(shí)，載流子被激發(fā),，產(chǎn)生電子-空穴,，稱為光電 光電傳感器載流子。在外電場(chǎng)的作用下,，光電載流子參于導(dǎo)電,，形成比暗電流大得多的反向電流,，該反向電流稱為光電流。光電流的大小與光照強(qiáng)度成正比,，于是在負(fù)載電阻上就能得到隨光照強(qiáng)度變化而變化的電信號(hào),。 光敏三極管除了具有光敏二極管能將光信號(hào)轉(zhuǎn)換成電信號(hào)的功能外，還有對(duì)電信號(hào)放大的功能,。光敏三級(jí)管的外型與一般三極管相差不大,，一般光敏三極管只引出兩個(gè)極——發(fā)射極和集電極，基極不引出,，管殼同樣開(kāi)窗口,，以便光線射入。為增大光照,，基區(qū)面積做得很大，發(fā)射區(qū)較小,，入射光主要被基區(qū)吸收,。工作時(shí)集電結(jié)反偏，發(fā)射結(jié)正偏,。在無(wú)光照時(shí)管子流過(guò)的電流為暗電流Iceo=（1+β）Icbo（很?。纫话闳龢O管的穿透電流還??；當(dāng)有光照時(shí)，激發(fā)大量的電子-空穴對(duì),，使得基極產(chǎn)生的電流Ib增大,，此刻流過(guò)管子的電流稱為光電流，集電極電流Ic=（1+β）Ib,，可見(jiàn)光電三極管要比光電二極管具有更高的靈敏度,。

西克（SICK）傳感器的靜態(tài)特性是指對(duì)靜態(tài)的輸入信號(hào)，西克（SICK）傳感器的輸出量與輸入量之間所具有相互關(guān)系,。因?yàn)檫@時(shí)輸入量和輸出量都和時(shí)間無(wú)關(guān),，所以它們之間的關(guān)系，即傳感器的靜態(tài)特性可用一個(gè)不含時(shí)間變量的代數(shù)方程,，或以輸入量作橫坐標(biāo),，把與其對(duì)應(yīng)的輸出量作縱坐標(biāo)而畫(huà)出的特性曲線來(lái)描述。表征傳感器靜態(tài)特性的主要參數(shù)有：線性度,、靈敏度,、遲滯、重復(fù)性,、漂移等,。

（1）線性度：指?jìng)鞲衅鬏敵隽颗c輸入量之間的實(shí)際關(guān)系曲線偏離擬合直線的程度,。定義為在全量程范圍內(nèi)實(shí)際特性曲線與擬合直線之間的zui大偏差值與滿量程輸出值之比。

（2）靈敏度：靈敏度是傳感器靜態(tài)特性的一個(gè)重要指標(biāo),。其定義為輸出量的增量與引起該增量的相應(yīng)輸入量增量之比,。用S表示靈敏度。

（3）遲滯：西克（SICK）傳感器在輸入量由小到大（正行程）及輸入量由大到?。ǚ葱谐蹋┳兓陂g其輸入輸出特性曲線不重合的現(xiàn)象成為遲滯,。對(duì)于同一大小的輸入信號(hào)，西克（SICK）傳感器的正反行程輸出信號(hào)大小不相等,，這個(gè)差值稱為遲滯差值,。

（4）重復(fù)性：重復(fù)性是指?jìng)鞲衅髟谳斎肓堪赐环较蜃魅砍踢B續(xù)多次變化時(shí)，所得特性曲線不一致的程度,。

（5）漂移：西克（SICK）傳感器的漂移是指在輸入量不變的情況下,，傳感器輸出量隨著時(shí)間變化，此現(xiàn)象稱為漂移,。產(chǎn)生漂移的原因有兩個(gè)方面：一是傳感器自身結(jié)構(gòu)參數(shù),；二是周?chē)h(huán)境（如溫度、濕度等）,。
西克（SICK）傳感器動(dòng)態(tài)特性

所謂動(dòng)態(tài)特性,，是指西克（SICK）傳感器在輸入變化時(shí)，它的輸出的特性,。在實(shí)際工作中,，傳感器的動(dòng)態(tài)特性常用它對(duì)某些標(biāo)準(zhǔn)輸入信號(hào)的響應(yīng)來(lái)表示。這是因?yàn)槲骺耍⊿ICK）傳感器對(duì)標(biāo)準(zhǔn)輸入信號(hào)的響應(yīng)容易用實(shí)驗(yàn)方法求得,，并且它對(duì)標(biāo)準(zhǔn)輸入信號(hào)的響應(yīng)與它對(duì)任意輸入信號(hào)的響應(yīng)之間存在一定的關(guān)系,，往往知道了前者就能推定后者。zui常用的標(biāo)準(zhǔn)輸入信號(hào)有階躍信號(hào)和正弦信號(hào)兩種,，所以西克（SICK）傳感器的動(dòng)態(tài)特性也常用階躍響應(yīng)和頻率響應(yīng)來(lái)表示,。

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C20E-135303A12西克SICK光電傳感器

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WTB4S-3F2132V
WTB4S-3F2161
WTB4S-3F2162V
WTB4S-3F2234VS08
WTB4S-3F2265V
WTB4S-3F3132V
WTB4S-3F3162V
WTB4S-3K2261
WTB4S-3N1131
WTB4S-3N1132
WTB4S-3N1132H
WTB4S-3N1132V
WTB4S-3N1134
WTB4S-3N1135
WTB4S-3N1135H
WTB4S-3N1162H
WTB4S-3N1162V
WTB4S-3N1165H
WTB4S-3N1331
WTB4S-3N1332
WTB4S-3N1332V
WTB4S-3N1361
WTB4S-3N1362V
WTB4S-3N2131
WTB4S-3N2132V
WTB4S-3N2161
WTB4S-3N2162V
WTB4S-3N2232
WTB4S-3N2265V
WTB4S-3P1035VS06
WTB4S-3P1132S06
WTB4S-3P1132V
WTB4S-3P1162H
WTB4S-3P1162V
WTB4S-3P1232V
WTB4S-3P1331
WTB4S-3P1332
WTB4S-3P1361
WTB4S-3P2131
WTB4S-3P2132
WTB4S-3P2132V
WTB4S-3P2161
WTB4S-3P2162
WTB4S-3P2162V
WTB4S-3P2204VS02
WTB4S-3P2205VS01
WTB4S-3P2231
WTB4S-3P2232V
WTB4S-3P2234
WTB4S-3P2234VS05
WTB4S-3P2235V
WTB4S-3P2261
WTB4S-3P2262V
WTB4S-3P2264
WTB4S-3P2264S01
WTB4S-3P2264S03
WTB4S-3P2264V
WTB4S-3P2265V
WTB4S-3P3131
WTB4S-3P3132
WTB4S-3P3132V
WTB4S-3P3161
WTB4S-3P3204HS01
WTB4S-3P3232H
WTB4S-3P3232V
WTB4S-3P3234
WTB4S-3P3234H
WTB4S-3P3234S04
WTB4S-3P3235H
WTB4S-3P3260S02
WTB4S-3P3262H
WTB4S-3P3262V
WTB4S-3P3264
WTB4S-3P3264H
WTB4S-3P3265H
WTB4S-3P3432
WTB4S-3P3432S05
WTB4S-3P3432V
WTB4S-3P3434V
WTB4S-3P3435V
WTB4S-3P3461
WTB4S-3P3462
WTB4S-3P3462V
WTB4S-3P3464V
WTB4S-3P3465V
WTB4S-3W1331
WTB4SC-3P2232
WTB4SC-3P2232V
WTB4SC-3P2262V
WTB4SC-3P3432
WTB4SC-3P3432V
WTB4SC-3P3462
WTB4SC-3P3462V
WTB4T-3N1264
WTB4T-3P1264

C20E-135303A12西克SICK光電傳感器