42GRF-9002-QD42GRF-900042GRF-9000-1042GRF-9000-QD42GRF-9000-QD142GRF-900142GRF-9001-QD42GRF-900242GRF-9002-QD在外电场的作用下，光电载流子参与导电，形成比暗电流大得多的反向电流，该反向电流称为光电流。光电流的大小与光照强度成正比，于是在负载电阻上就能得到随光照强度变化而变化的电信号。42GRF-900342GRF-9003-QD42GRF-9003-QD142GRF-9003-QD342GRF-9003-QD442GRF-9003-QD642GRF-9101-QD42GRF-910242GRF-9102-QD42GRF-910342GRF-9103-QD42GRF-9103-QD142GRL-900042GRL-9000-542GRL-9000H42GRL-9000-QD42GRL-9000-QD342GRL-9002-QD42GRL-9003-QD42GRL-9003-QD242GRL-904042GRL-9040-5光电传感器是通过把光强度的变化转换成电信号的变化来实现控制的。光电传感器在一般情况下，有三部分构成，它们分为：发送器、***和检测电路。发送器对准目标发射光束，发射的光束一般来源于半导体光源，发光二极管(LED)、激光二极管及红外发射二极管。光束不间断地发射，或者改变脉冲宽度。***有光电二极管、光电三极管、光电池组成。在***的前面，装有光学元件如透镜和光圈等。在其后面是检测电路，它能滤出有效信号和应用该信号。140U-N-BB3M140U-N-BB4M140U-N-EA1140U-N-EA1R1140U-N-EA2140U-N-EOPA140U-N-EOPD140U-N-ER1140U-N-FCX06140U-N-PB140U-N-PL140U-N-RM12B140U-N-SNB140U-N-SND140U-N-SNJ140U-N-SNN140U-N-TLA2140U-N-TLA3140U-N-TLA3A140U-N-TLC2140U-N-TLC3140U-N-TL***140U-N-TL***M140U-N-UA140U-N-UB140U-N-UJ140U-N-XFC06140U-N0H3-E12140U-N0I3-E12140U-N5L3-E12140U-N5L3-E12-A140U-N5L3-E12-QD140U-N6G3-E12-Z1140U-N6H3-E12140U-N6H3-E12-B140U-N6H3-E12-PJ140U-N6J3-E12140U-N6S3-E12-A140U-NRP3-D60140U-NRP3-D70140U-NRP3-D80140U-NRP3-D90140U-NRP3-E10140U-NRP3-E12140U-P1140U-P2140U-PB140U-PY140U-Q-MHM140U-Q-MHS140U-Q-RMX140U-Q-RVM12B140U-Q-RVM12R140U-Q-RVM21B140U-Q-RVM21R140U-Q-TLA1140U-Q-TLA2140U-Q-TLA2A140U-Q-TLA2B140U-Q-TLC2140U-Q3D3-D50140U-Q3D3-D60140U-Q3X3140U-Q6D3-D40140U-Q6D3-D50140U-Q6D3-D60140U-Q6X3140U-QTD3-D35140U-QTD3-D40140U-QTD3-D45140U-QTD3-D50140U-QTD3-D60140U-QTG3-D60140U-QTH3-D60140U-QTL3-D60140U-R-EA1R1140U-R-FCX06140U-R-RM12B140U-R-TLA4140U-R-TLA6140U-R0H3-E20140U-R16RP3-E12140U-R16RP3-E14140U-R16RP3-E15140U-R20RP3-E12140U-R20RP3-E16140U-R20RP3-E20140U-R221140U-R621140U-R25RP3-E20140U-R312140U-R312S140U-***1S140U-R421140U-R512188-J3C100-N188-J3C130188-J3C130-N188-J3C160188-J3C160-N188-J3C200188-J3C200-N188-J3C250188-J3C250-N188-J3C320188-J3C320-N188-J3***00188-J3***00-N188-J3C500188-J3C500-N188-J3C630188-J3C630-N188-J3D005188-J3D005-N188-J3D010188-J3D010-N188-J3D020188-J3D020-N188-J3D030188-J3D030-N188-J3D040188-J3D040-N188-J3D060188-J3D060-N188-J3D080188-J3D080-N188-J3D100188-J3D100-N188-J3D130188-J3D130-N188-J3D160188-J3D160-N188-J3D200188-J3D200-N188-J3D250188-J3D250-N188-J3D320188-J3D320-N188-J3D400188-J3D400-N188-J3D500188-J3D500-N188-J3D630188-J3D630-N188-J4B060188-J4B080188-J4B100188-J4B130188-J4B160188-J4B200188-J4B250188-J4B320188-J4B400188-J4***0188-J4B630188-J4C005188-J4C010188-J4C020188-J4C030188-J4C040188-J4C060188-J4C080188-J4C100188-J4C130188-J4C160188-J4C200188-J4C250188-J4C320188-J4***00188-J4C500188-J4C630188-J4D005188-J4D010188-J4D020188-J4D030188-J4D040188-J4D060188-J4D080188-J4D100188-J4D130188-J4D160188-J4D200188-J4D250188-J4D320188-J4D400188-J4D500188-J4D630188ASPA142GRF-9002-QD)