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日本歐姆龍產(chǎn)品詳解:
日本歐姆龍常州代理OMRON壓力傳感器
OMRON傳感器是采用光電元件作為檢測(cè)元件的傳感器。它首先把被測(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(<µA),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(很小),比一般三極管的穿透電流還小;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,可見光電三極管要比光電二極管具有更高的靈敏度。
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OMRON WLCA12
OMRON WLCA12 WITH PARTS
OMRON WLCA12-141 5M
OMRON WLCA12-2
OMRON WLCA12-2 WITH PARTS
OMRON WLCA12-266
OMRON WLCA12-267
OMRON WLCA12-26N
OMRON WLCA12-2A
OMRON WLCA12-2G
OMRON WLCA12-2LD
OMRON WLCA12-2LE
OMRON WLCA12-2N
OMRON WLCA12-2N WITH PARTS
OMRON WLCA12-2NLD
OMRON WLCA12-2NLE
OMRON WLCA12-2NTC
OMRON WLCA12-2NTH
OMRON WLCA12-2NY
OMRON WLCA12-2-Q WITH PARTS
OMRON WLCA12-2RP
OMRON WLCA12-2TH
OMRON WLCA12-2Y
OMRON WLCA12-55
OMRON WLCA12-G
OMRON WLCA12-LD
OMRON WLCA12-LE
OMRON WLCA12-Q WITH PARTS
OMRON WLCA12-RP
OMRON WLCA12-RP40
OMRON WLCA12-RP60
OMRON WLCA12-TC
OMRON WLCA12-TH
OMRON WLCA12-TS
OMRON WLCA2
OMRON WLCA2 WITH PARTS
OMRON WLCA2-139 2M
OMRON WLCA2-140LD3 5M
OMRON WLCA2-2
OMRON WLCA2-2 WITH PARTS
OMRON WLCA2-255
OMRON WLCA2-26N
OMRON WLCA2-26N WITH PARTS
OMRON WLCA2-28
OMRON WLCA2-28N
OMRON WLCA2-2A
OMRON WLCA2-2G
OMRON WLCA2-2LD
OMRON WLCA2-2LE
OMRON WLCA2-2N
OMRON WLCA2-2N WITH PARTS
OMRON WLCA2-2N55
OMRON WLCA2-2NG
OMRON WLCA2-2NLD
OMRON WLCA2-2NLE
OMRON WLCA2-2NTC
OMRON WLCA2-2NTH
OMRON WLCA2-2NY
OMRON WLCA2-2-Q WITH PARTS
OMRON WLCA2-2RP
OMRON WLCA2-2RP60
OMRON WLCA2-2TC
OMRON WLCA2-2TH
OMRON WLCA2-2Y
OMRON WLCA2-2YLE
OMRON WLCA2-55
OMRON WLCA2-55139 2M
OMRON WLCA2-55LD
OMRON WLCA2-55LDK43
OMRON WLCA2-55LE
OMRON WLCA2-7
OMRON WLCA2-7 W1TH PARTS
OMRON WLCA2-755
OMRON WLCA2-7G
OMRON WLCA2-7LD
OMRON WLCA2-7LE
OMRON WLCA2-7TH
OMRON WLCA2-8
OMRON WLCA2-8 WITH PARTS
OMRON WLCA2-8LD
OMRON WLCA2-8LE
OMRON WLCA2-8TH
OMRON WLCA2-A
OMRON WLCA2-F
OMRON WLCA2-G
OMRON WLCA2-LD
OMRON WLCA2-LDK43
OMRON WLCA2-LD-M1GJ
OMRON WLCA2-LDS
OMRON WLCA2-LE
OMRON WLCA2-LE WITH PARTS
OMRON WLCA2-P1
OMRON WLCA2-RP
OMRON WLCA2-RP55
OMRON WLCA2-RP60
OMRON WLCA2-RP60LD3
OMRON WLCA2-TC
OMRON WLCA2-TH
OMRON WLCA2-THG
OMRON WLCA2-TS
OMRON WLCA2-Y
OMRON WLCA32-041TH
OMRON WLCA32-043
OMRON WLCA32-043LE
OMRON WLCA32-043TH
OMRON WLCA32-41
OMRON WLCA32-41 WITH PARTS
OMRON WLCA32-41G
OMRON WLCA32-41LD
OMRON WLCA32-41Y
OMRON WLCA32-42
OMRON WLCA32-42LE WITH PARTS
OMRON WLCA32-43
OMRON WLCA32-43 WITH PARTS
OMRON WLCA32-43LD
OMRON WLCA32-43LE
OMRON WLCA32-43RP40
OMRON WLCA32-44
OMRON WLCAL4-2
OMRON WLCAL4-2LE
OMRON WLCAL5-2
OMRON WLCAL5-2 WITH PARTS
OMRON WLCL
OMRON WLCL WITH PARTS
OMRON WLCL-140 5M
OMRON WLCL-140LD3 A 2SIN
OMRON WLCL-2
OMRON WLCL-2 WITH PARTS
OMRON WLCL-2LE
OMRON WLCL-2N
OMRON WLCL-2N WITH PARTS
OMRON WLCL-2N55LD
OMRON WLCL-2NLD
OMRON WLCL-2NLE
OMRON WLCL-2NTC
OMRON WLCL-2NTH
OMRON WLCL-2TH
OMRON WLCL-55LD
OMRON WLCL-G
OMRON WLCL-LD
OMRON WLCL-LE
OMRON WLCL-RP
OMRON WLCL-RP60LD3 5M
上海維特銳實(shí)業(yè)發(fā)展有限公司為客戶提供原裝正廠的歐姆龍傳感器,以合理的性價(jià)比,快捷的交貨期,熱情周到的服務(wù),為客戶提供高品質(zhì)、經(jīng)濟(jì)耐用、品種齊全的產(chǎn)品歐姆龍傳感器,從而贏得客戶的*贊賞。我們將不負(fù)客戶對(duì)本公司的期望和厚愛,努力為廣大客戶提供優(yōu)質(zhì)的產(chǎn)品、良好的售后服務(wù),努力成為*秀的歐姆龍傳感器。我們公司是國(guó)外渠道直接廠家拿貨,貨到中國(guó)公司可提供報(bào)關(guān)單,本公司所有產(chǎn)品假一賠十!原裝產(chǎn)品歐姆龍傳感器,且合同注明假一賠十。