施克SICK壓力傳感器 1.德國施克傳感器按照其用途分類：壓力敏和力敏傳感器位置傳感器液面?zhèn)鞲衅髂芎膫鞲衅魉俣葌鞲衅骷铀俣葌鞲衅魃渚€輻射傳感器熱敏傳感器24GHz雷達傳感器2..德國施克傳感器傳感器按照其原理分類振動傳感器濕敏傳感器磁敏傳感器氣敏傳感器真空度傳感器生物傳感器等。SICK--*、強大的傳感器技術(shù)代名詞。SICK自動化解決方案是優(yōu)化和改進生產(chǎn)過程的理想選擇。今天，SICK公司（中文西克）已在40多個國家建立了分支機構(gòu)，擁有5000多名雇員，是世界上著名的傳感器生產(chǎn)商之一。
現(xiàn)今，企業(yè)要發(fā)展必須注重過程而不是功能，必須排除不靈活的工作過程，全面優(yōu)化價值的生產(chǎn)過程。因此，必須要有一個整體的自動化解決方案。作為自動化、安全技術(shù)、環(huán)境監(jiān)測系統(tǒng)和自動識別系統(tǒng)等傳感器領域的*，以及有著60年傳感器技術(shù)經(jīng)驗的專業(yè)公司，SICK可以為工業(yè)生產(chǎn)各個領域提供*化的解決方案。
SICK-SensorInligence.（西克-智能傳感器專家）--西克（SICK）專注于為物流自動化、工廠自動化和過程自動化提供日益智能化的傳感器件和整體解決方案。西克于1946年創(chuàng)建，至今已發(fā)展成為一個活躍于的集團公司，擁有近5000員工，2010年銷售業(yè)績達到7.48億歐元。持續(xù)的創(chuàng)新、的技術(shù)工藝以及嚴格的成本控制，確保了西克在眾多領域應用市場上的地位。
SICK色標傳感器常用于檢測特定色標或物體上的斑點，它是通過與非色標區(qū)相比較來實現(xiàn)色標檢測，而不是直接測量顏色。SICK色標傳感器實際是一種反向裝置，光源垂直于目標物體安裝，而接收器與物體成銳角方向安裝，讓它只檢測來自目標物體的散射光，從而避免傳感器直接接收反射光，并且可使光束聚焦很窄。白熾燈和單色光源都可用于色標檢測。以白熾燈為基礎的SICK傳感器用有色光源檢測顏色，這種白熾燈發(fā)射包括紅外在內(nèi)的各種顏色的光，因此用這種光源的傳感器可在很寬范圍上檢測顏色的微小變化。另外，白熾燈SICK傳感器的檢測電路通常都十分簡單，因此可獲得極快的響應速度。然而，白熾燈不允許振動和延長使用時間，因此不適用于有嚴重沖擊和振動的場合。 施克SICK壓力傳感器 VTE18-4P4740
VTF18-4N1212
VTF18-4N1412
VTE18-4N8212
VTE18-4N4212
VL18-3N3340
VL18-3E3340
VL18-4N3412
VL18-4P3440
VS/VE18-4P3740
VS/VE18-4N3212。
SICK接近開關(guān)系列：
IH04-OB8NS-VT1
IH06-1B5NS-VTK
IQ05-0B8NS-ZU1
IQ08-02BNS-KTO
IQ10-03BPO-KT1
IQ10-03BPS-KT1
IQ12-03BPS-KT0
IQ40-15BPP-KKO
IM12-04BPS-ZC1
IM12-04NNS-ZW1
IM12-04NPS-ZW1
IM08-02NNS-ZW1
IM12-04BPS-ZC1
IM18-05BPS-ZC1
IM18-05BPS-ZCK
IM18-08NPS-ZWQ
IM30-10BDS-ZW1
IM3015BNS-ZW1。
一些常用SICK型號:
WT4-2N132
WL9-2N131
WL9-2P431
WL9-2N131
WS/WE9-2N130
WS/WE9-2N430
WL12-2B560
WL12-2B560S37
WL14-P132P01
WS/WE12L-2N430
WT18-3P610
WT24-2B420
WL23-F132
WS/WE24-2B230
WL34-B430
WS/WE100-N1439
WT160-F450
WS/WE150-P430
WT150-T430
WT18-3P610
WT250-S162
WL170-N122
WT170-N132
WT170-N430
WS/WE-170-N132
WT150-N162
WT150-N460
WS/WE-150-N132
WL150-N132
VS/VE-180-N132
VT180-N133
VL180-N162
WL260-R270
WT260-R260
WS/WE260-S270
WS/WE260-R230
WT250-P460
WT250-N162
WL250-S132
WL250-P430
WS/WE250-N132
WLL170-N132
WLL160-E122
WT160-N122
WL160-N440
WL160-N132
WLS/WE160-142等。
延長線 DOL-1205-G05M
光電開關(guān) WTA24-P5201S05
光電開關(guān) VL18-3N3112
光電開關(guān) NT6-04012
光電開關(guān) WL2S-F111
檢測器 KT6W-P5116
光電開關(guān) WT12-2P150
光電開關(guān) WT45-R260
反射板 PL20A
光電開關(guān) WL150-P430
光電開關(guān) WLL12-B5181
光電開關(guān) WLL160-F420
光電開關(guān) WT160-F410
光電開關(guān) VTF18-4P3240
光電開關(guān) IM18-08NNS-ZW1
接近開關(guān) IM30-15N-N-ZWO
延長線 DOL-1204-G05M
光電開關(guān) WT2S-N131
光電開關(guān) WF30-40B4150
光電開關(guān) WL18-3P130
光電開關(guān) WS/WE9L-P430
光電開關(guān) NF-DB01
光電開關(guān) WT100-N1419
光電開關(guān) VL18-4P3240
光電開關(guān) NT6-03022
光電開關(guān) VD-130T
光電開關(guān) IM12-08NPS-ZC1
光電開關(guān) WL27-2F440
光電開關(guān) WT150-N132
光電開關(guān) WL160-F430
光電開關(guān) WL18-2P430
接近開關(guān) IQ80-60NPP-KKO
接近開關(guān) IM18-08NPS-ZUK
接近開關(guān) IM30-15NUS-ZUO
光電開關(guān) VS/E18-3F3112
光電開關(guān) WT160-F470
光電開關(guān) WT150-N162
接近開關(guān) IQ80-60NUP-KK0
光電開關(guān) WLL170-2P132
光電開關(guān) WLL170-P132
光電開關(guān) WL27-2F450
光電開關(guān) WT9-2N130
光電開關(guān) WLL170-2N132
光電開關(guān) WT2S-N111
光電開關(guān) WL170-P420
光電開關(guān) WL170-N122
光電開關(guān) WS/WE27-2F430
光電開關(guān) WT34-R240
編碼器 DGS60-N4A02500
光電開關(guān) VTF18-4N1712
WT2S-P111 1022660
WT2S-P131 1022661
WT2S-P211 1022658
WT2S-P231 1022659
WT2S-N111 1022662
WT2S-N131 1022663
WT2S-P161 1022664
WT2S-N161 1022665
WL2S-F111 1022666
WL2S-E111 1022667
WS/WE2S-F113 1022668
WS/WE2S-E113 1022669
WT4-2P132 1015150
WT4-2P330 1015143
WT4-2P331 1015145
WT4-2N132 1012874
WT4-2N330 1012920
WT4-2N331 1015147
WT4-2P430 1015957
WT4-2E132 1012875
WT4-2E330 1013787
WT4-2E331 1015148
WT4-2F132 1012873
WT4-2F330 1015144
WT4-2F331 1015146
WL4-2P132 1015767
WL4-2P330 1015763
WL4-2P331 1015759
WL4-2N132 1015769
WL4-2N330 1015765
WL4-2N331 1015761
WL4-2P430 1015958
WL4-2E132 1015770
WL4-2E330 1015766
WL4-2E331 1015762
WL4-2F132 1015768
WL4-2F330 1015764
WL4-2F331 1015760
WL4G-2F330 1016209
WS/WE4-2P132 1015779
WS/WE4-2P330 1015775
WS/WE4-2P331 1015771
WS/WE4-2N132 1015781
WS/WE4-2N330 1015777
WS/WE4-2N331 1015773
WS/WE4-2E132 1015782
WS/WE4-2E330 1015778
WS/WE4-2E331 1015774
WS/WE4-2F132 1015780
WS/WE4-2F330 1015776
WS/WE4-2F331 1015772
WT4-2P132 T01 1022966
WT4-2N132 T01 1023763
WS/WE4-2F T01 1023764
WS/WE4-2E T01 1023765
WS/WE4-2P T01 1023636
WT9-2P110 1018577
WT9-2P130 1018293
WT9-2P330 1019026
WT9-2P410 1019668
WT9-2P430 1018295
WT9-2P630 1019272
WT9-2N130 1018294
WT9-2N430 1018296
WT9-2P151 1018297
WT9-2P351 1019027
WT9-2P451 1018299
WT9-2P651 1019273
WT9-2N151 1018298
WT9-2N451 1018300
WT9-2P160 1019097
WT9-2P460 1019098
WT9-2N160 1019342
WT9-2P141 1018301
WT9-2P341 1019274
WT9-2P441 1018303
WT9-2P641 1019275
WT9-2N141 1018302
WT9-2N441 1018304
WL9-2P130 1018281
WL9-2P330 1019024
WL9-2P430 1018283
WL9-2P630 1018268
WL9-2N130 1018282
WL9-2N330 1019511
WL9-2N430 1018284
WL9-2P131 1018285
WL9-2P331 1019025
WL9-2P431 1018287
WL9-2P631 1019269
WL9-2N131 1018286
WL9-2N431 1018288
WL9-2P121 1018289
WL9-2P321 1019070
WL9-2P421 1018291
WL9-2P621 1019271
WL9-2N121 1018290
WL9-2N421 1018292
WS/WE-2P130 1019259
WS/WE-2P330 1019383
WS/WE-2P430 1019261
WS/WE-2P630 1019382
WS/WE-2N130 1019260
WS/WE-2N430 1019262
WT9L-P330 1023977
WT9L-P430 1023959
WT9L-N330 1023991
WT9L-N430 1023990
WL9L-P330 1023976
WL9L-P430 1023958
WL9L-N330 1023989
WL9L-N430 1023988
WS/WE9L-P330 1023993
WS/WE9L-P430 1023992
WS/WE9L-N330 1023995
WS/WE9L-N430 1023994
WT11-P430 1018511
WT11-P130 1018683
WT11-N430 1018685
WT11-N130 1018684
WT11-P450 1018687
WT11-P150 1018686
WT11-N450 1018689
WT11-N150 1018688
WL11-P430 1018510
WL11-P130 1019680
WL11-N430 1018282
WL11-N130 1018681
WL11-R130 1025532
WT12-2P440 1016150
WT12-2P140 1016148
WT12-2N440 1016146
WT12-2N140 1016145
WT12-2P430 1016134
WT12-2P130 1016129
WT12-2N430 1016125
WT12-2N130 1016122
WT12-2P410 1016131
WT12-2P110 1016126
WT12-2N410 1016124
WT12-2N110 1016118
WT12-2P450 1016142
WT12-2P150 1016140
WT12-2N450 1016139
WT12-2N150 1016138
WL12-2P430 1016102
WL12-2P130 1016096
WL12-2P420 1016101
WL12-2P120 1016095
WL12-2N430 1016092
WL12-2N130 1016085
WL12-2N420 1016091
WL12-2N120 1016084
WL12G-P530 1016289
WL12G-N530 1016309
WL12G-V530 1016310
WL12G-W530 1016311
WS/WE12-2P430 1016157
WS/WE12-2P130 1016156
WS/WE12-2N430 1016155
WS/WE12-2N130 1016154
WT12L-2B510 1017959
WT12L-2B530 1018250
WT12L-2B540 1018251
WT12L-2B550 1017904
WL12L-2B530 1018252
WL12L-2B520 1018253
WS/WE12L-2P430 1018254
WS/WE12L-2N430 1018255
WS/WE12L-2P410 1018256
WS/WE12L-2N410 1018257
WT14-P420 1016659
WT14-P112 1012922
WT14-P410 1012923
WL11-P132 1012924
WL11-P430 1012925
WT18-2P112 1012887
WT18-2P115 1012890
WT18-2P410 1012895
WT18-2P610 1012900
WT18-2N112 1012879
WT18-2N115 1012881
WT18-2N610 1012885
WT18-2N410 1015149
WT18-2P132 1012892
WT18-2P430 1012887
WT18-2N132 1012882
WT18-2N430 1012884
WL18-2P132 1012906
WL18-2P135 1012907
WL18-2P430 1012908
WL18-2P630 1012912
WL18-2N132 1012903
WL18-2N135 1012911
WL18-2N630 1012904
WL18-2N430 1012905
WS/WE18-2P132 1012915
WS/WE18-2P430 1012916
WS/WE18-2P630 1012918
WS/WE18-2N132 1012914
WS/WE18-2N630 1012917
WT23-F420 1016667
WT23-F421 1016666
WT23-F410 1015925
WT23-S112 1016249
WL23-F132 1015686
WL23-F430 1015684
WL23-F431 1015685
WL23-F132 1015686
WL23-F430 1015684
WL23-F431 1015685
WT24-2B240 1017813
WT24-2B250 1017883
WT24-2B440 1017934
WT24-2V250 1017887
WT24-2V540 1017888
WT24-2R250 1017854
WT24-2R250 1016820
WL24-2B240 1017859
WL24-2B333 1017878
WL24-2B430 1017860
WL24-2B440 1017879
WL24-2V230 1017880
WL24-2V530 1017881
WS/WE24-2B230 1017861
WS/WE24-2B240 1017862
WS/WE24-2B333 1017874
WS/WE24-2B430 1017853
WS/WE24-2B440 1017875
WS/WE24-2V530 1017877
WT27-2F430 1015082
WT27-2F431 1015086
WT27-2P630 1015090
WT27-2F730 1015084
WT27-2N630 1015088
WT27-2S132 1015960
WT27-2R630 1015092
WT27-2S730 1015097
WT27-2F112 1015076
WT27-2F410 1013268
WT27-2N410 1016030
WT27-2F411 1015085
WT27-2F440 1015079
WT27-2P410 1015138
WT27-2P610 1015089
WT27-2N610 1015087
WT27-2F710 1015083
WL27-2F132 1015100
WL27-2F430 1013269
WL27-2F431 1015106
WL27-2F440 1015101
WL27-2F450 1015102
WL27-2P630 1015108
WL27-2F730 1015104
WL27-2N630 1015107
WS/WE27-2F430 1015121
WS/WE27-2F431 1015126
WS/WE27-2F450 1015127
WS/WE27-2P630 1015123
WS/WE27-2N630 1015122
WS/WE27-2F730 1015124
NT6-03012
NT6-03022
NT6-13012
NT6-13022
NT6-07012
NT6-07022
NT6-08022
NT6-29022
NT8-01412
NT8-01422
NT8-01512
NT8-02412
NT8-02422
NT8-02512
NT8-03612
NT8-04612
NT8-04712
NT8-06932
NT8-06432
NT8-16412
NT8-17412
NT8-18432
NT8-19432
NT8-21412
NT8-22412
NT8-22512
NT6-03018
NT6-04012
NT6-04022
NT6-04011
NT6-03023
NT6-03014
NT6-03025
NT6-03062
NT6-13023
NT6-03010S06
NT8-06412
NT6-03042
NT6-03082
NT6-03024
NT6-03015
NT6-04018
NT6-03052
NT6-13082
NT8-02912
NT6-04038
NTL6-B11
NTL6-B12
NT6-04008S11
NTL6-E12
NT6-13024
NT6-14900S12
NTL6-B18
NT6-43302S20
NT8-01412
NT6-08024S14
NT6-04025
NT6-N112
NT6-P112
NT6-14920S17
NT6-03212
NT6-03215
NT6-33322S18
NT6-29042
NTL6-B10S01
NTL6-P12
KT5L-P3611
NT6-03218
NT6-33342S23
NT6-03038
NT6-07018
NT6-29019
NT6-03215E05
NT8-00000S01
KT5L-N3611
KT5L-P3611
KT5L-P3611E07
NT6-14920S29
WT4-2P132
WT4-2N132
WT4-2P430
WT24-2B210
WT24-2B250
WT24-2B240
WT24-2B440
WT27-2F430
WT27-2P610
WT27-2F440
WT27-2S112
WT27-2F410 S11
WT45-R260
WT18-2P430
WT34-R220
WS/WE18-2P430
WF2-B4150
WL12-2P130
WT12-2P430
WT12-2N130
WL12-2N130
WT12-2P440
WT12-2P130
WL12-2B560
WL12-2P430
WT12-2N410
WT12-2P410
WT12-2N430
WL12-2B560S37
KT3W-N1116
KT5G-2P1111
NT6-03022
KT5W-2N1116
NT6-04012
WT9-2P151
WT9-2N130
WL9-2P430
WT9-2P330
WT9-2P430
WT9-2P410
WT9-2P130
WT9-2P141
WT9-2P341
WL9-2P631
WL9-2P131
WL9-2N131
WT250-P460
WT250-S162
WT250-S142
WL260-F430
WL260-F230
WL250-P430
WL260-S270
WT260-R270
WT260-F470
WS/WE4-2P132
WS/WE4-2F132
WS/WE12L-2P430
WT100-N1439
WL260-R270
WLL260-F240
WT100-P1419
WT100-P3419
WT100-P4419
WT100-N3419
WT100-P1439
WT100-P4439
WT100-N4439
WL100-P1439
WL100-P3439
WL100-P1239
WL100-P1339
WL100-N1239
WL100-N3239
WL100-P1429
WL100-P4429
WS/WE100-P1439
WS/WE100-P3439
WS/WE100-N1439
WS/WE100-P4239
WT100L-E1141
WT100L-E2141
WT100L-E2241
WT100L-F2241
WTB140-P132
WTB140-P330
WTB140-P430
WTB140-N132
WTB140-P420
WTB140-N420
WTE140-2P132
WTE140-2P330
WTE140-2N132
WL140-2P132
WL140-2P330
WL140-2N132
WL140-2N430
WS/WE140-2P132
WS/WE140-2P330
WS/WE140-2N132
WT150-P132
WT150-P430
WT150-N132
WT150-N430
WL150-P132
WL150-P430
WL150-N132
WL150-N430
WL150-P122
WL150-P420
WL150-N122
WL150-N420
WS/WE150-P132
WS/WE150-P430
WS/WE150-N132
WS/WE150-N430
WT160-F112
WT160-F310
WT160-F410
WT160-F122
WT160-F320
WT160-F420
WT160-E112
WT160-E310
WT160-E410
WT160-E122
WT160-E320
WT160-E420
WT160-F172
WT160-F370
WT160-F470
WT160-F182
WT160-F380
WT160-F480
WT160-E172
WT160-E370
WT160-E470
WT160-E182
WT160-E380
WT160-E480
WT160-F152
WT160-F350
WT160-F450
WT160-F162
WT160-F360
WT160-F460
WT160-E152
WT160-E350
WT160-E450
WT160-E162
WT160-E360
WT160-E460
WL160-F132
WL160-F330
WL160-F430
WL160-F142
WL160-F340
WL160-F440
WL160-E132
WL160-E330
WL160-E430
WL160-E142
WL160-E340
WL160-E440
WS/WE160-F132
WS/WE160-F330
WS/WE160-F430
WS/WE160-F142
WS/WE160-F440
WS/WE160-E142
WLL160-F122
WLL160-E122
WLL160-F420
WLL160-E420
WLL160T-F132
WLL160T-F430
WTB160T-P212
WTB160T-P311
WTB160T-P412
WTB160T-N412
WTB160T-E412
WTB160T-P232
WTB160T-P432
WTB160T-E331
WTM160T-P292
WTM160T-P391
WTM160T-F492
WTF160T-P212
WTF160T-P311
WTF160T-F412
WTE160T-P232
WTE160T-N432
WTE160T-E331
WTE160T-F232
WL160T-P212
WL160T-P311
WL160T-N412
WL160T-E212
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WTB27-3E2641
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WTB27-3P2441
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WTB27-3E2411
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WL27-3E2631
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WSE27-3E2631
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WT45-P200S03
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WT160-N152
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WS/WE160-F440
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IM08-02BPS-ZW1
VL12-2P132
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VS/VE12-2P132
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VL18-3P3312
VL18-3N3340
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VL18-4P3812
VL18-3N3312
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WS/WE27-2F730
WS/WE18-2P430
WS/WE4-2F330
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WS/WE9-2P430
WS/WE150-P430
VS/VE18-3N3112
VS/VE18-3N3140
VS/VE18-3P3112
VS/VE18-3F3112
VS/VE18-3N3112
VS/VE18-3E3240
VS/VE18-3P3212
VS/VE18-4P3212
VS/VE18-3N3412
VS/VE18-3P3612
VS/VE18-3N3812
VS/VE18-3N3312
VS/VE18-3N3340
VS/VE18-3P3712
VS/VE18-3P3912
VS/VE18-3F3812
VS/VE18-4N3212
VS/VE18-4N3312
VS/VE18-4P3212
MHT15-N2247
MHT15-N3247
MHT15-N3347
MHT15-P3347
MHT15-N2249
MHT15-N2349
MHT15-P3249
MHT15-P3349
MHT15-N2217
MHL15-N2236
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MHL15-P3336
MHL15-N2238
MHL15-P2238
WF2-40B410
WF2-60B410
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WF5-40B410
WF5-60B410
WF5-95410
WF15-40B410
WF15-60B410
WF15-95B410
WF30-40B410
WF30-60B410
WF50-40B410
WF80-40B410
WF2-40B416
WF2-60B416
WF2-95B416
WF15-40B416
WF5-40B416
WF5-60B416
WF30-95B416
KT10W-2P1115
KT10W-2N1115
KT8W-P111C
KT8W-N111C
KTH5W-P1216D
KTH5W-N1216D
KT5W-2P1116
KT5W-2N1116
KT5W-2P1113
KT5W-2N1113
KT5W-2P1213
KT5W-2P1113S24
KT5G-2P1111
KT5G-2P1121
KT5G-2P1211
KT5G-2P1221
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KT5G-2N1111
KT5G-2N1211
KT5G-2N1311
KT5G-2N111S16
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KT5G-2N1112
KT5G-2P1212
KT5G-2N1212
KT5G-2P1114
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KT5L-P3611
KT5L-N3611
KTL5G2-P11
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KT3W-P1116
KT3W-N1116
KT3G-P1116
KT3G-N1116
KT2R-2B3711
KT2G-2B3711
KT2G-2B3721
KT6W-P5116
KT6W-P6116
KT6W-N5116
KT6W-N6116
KT1M-P1
KT1M-P2
LUT2-P1116
LUT2-N1116
CSL1-P11
CSL1-N11
CS81-P1112
CS81-P3612
CS84-P1112
CS84-N1112
SICK傳感器是采用光電元件作為檢測元件的傳感器。它首先把被測量的變化轉(zhuǎn)換成光信號的變化，然后借助光電元件進一步將光信號轉(zhuǎn)換成電信號。光電傳感器一般由光源、光學通路和光電元件三部分組成。由光通量對光電元件的作用原理不同所制成的光學測控系統(tǒng)是多種多樣的,按光電元件（光學測控系統(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量轉(zhuǎn)換 光電傳感器成連續(xù)變化的光電流,它與被測量間呈單值關(guān)系.模擬式光電傳感器按被測量（檢測目標物體）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物體放在光路中,恒光源發(fā)出的光能量穿過被測物,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)出的光投射到被測物上,再從被測物體表面反射后投射到光電元件上;所謂遮光式是指當光源發(fā)出的光通量經(jīng)被測物光遮其中一部份,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，并與負載電阻相串聯(lián)，當無光照時，它與普通二極管一樣，反向電流很小，稱為光敏二極管的暗電流；當有光照時，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。在外電場的作用下，光電載流子參于導電，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度成正比，于是在負載電阻上就能得到隨光照強度變化而變化的電信號。 光敏三極管除了具有光敏二極管能將光信號轉(zhuǎn)換成電信號的功能外，還有對電信號放大的功能。光敏三級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。工作時集電結(jié)反偏，發(fā)射結(jié)正偏。在無光照時管子流過的電流為暗電流Iceo=（1+β）Icbo（很小），比一般三極管的穿透電流還小；當有光照時，激發(fā)大量的電子-空穴對，使得基極產(chǎn)生的電流Ib增大，此刻流過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。 |
