【≠1745-E105≠】【≠1745-E105≠】
【≠1745-E105≠】【≠1745-E105≠】【≠1745-E105≠】【≠1745-E105≠】
【≠1745-E105≠】【≠1745-E105≠】
【≠1745-E105≠】【≠1745-E105≠】
信息處理技術(shù)取得的進展以及微處理器和計算機技術(shù)的高速發(fā)展,都需要在傳感器的開發(fā)方面有相應(yīng)的進展。微處理器現(xiàn)在已經(jīng)在測量和控制系統(tǒng)中得到了廣泛的應(yīng)用。隨著這些系統(tǒng)能力的增強,作為信息采集系統(tǒng)的前端單元,傳感器的作用越來越重要。傳感器已成為自動化系統(tǒng)和機器人技術(shù)中的關(guān)鍵部件,作為系統(tǒng)中的一個結(jié)構(gòu)組成,其重要性變得越來越明顯。
最廣義地來說,傳感器是一種能把物理量或化學(xué)量轉(zhuǎn)變成便于利用的電信號的器件。國際電工委員會(IEC:International Electrotechnical Committee)的定義為:“傳感器是測量系統(tǒng)中的一種前置部件,它將輸入變量轉(zhuǎn)換成可供測量的信號”。按照Gopel等的說法是:“傳感器是包括承載體和電路連接的敏感元件”,而“傳感器系統(tǒng)則是組合有某種信息處理(模擬或數(shù)字)能力的傳感器”。傳感器是傳感器系統(tǒng)的一個組成部分,它是被測量信號輸入的第一道關(guān)口。
傳感器系統(tǒng)的原則框圖示于圖1-1,進入傳感器的信號幅度是很小的,而且混雜有干擾信號和噪聲。為了方便隨后的處理過程,首先要將信號整形成具有最佳特性的波形,有時還需要將信號線性化,該工作是由放大器、濾波器以及其他一些模擬電路完成的。在某些情況下,這些電路的一部分是和傳感器部件直接相鄰的。成形后的信號隨后轉(zhuǎn)換成數(shù)字信號,并輸入到微處理器。
德國和俄羅斯學(xué)者認為傳感器應(yīng)是由二部分組成的,即直接感知被測量信號的敏感元件部分和初始處理信號的電路部分。按這種理解,傳感器還包含了信號成形器的電路部分。
傳感器系統(tǒng)的性能主要取決于傳感器,傳感器把某種形式的能量轉(zhuǎn)換成另一種形式的能量。有兩類傳感器:有源的和無源的。有源傳感器能將一種能量形式直接轉(zhuǎn)變成另一種,不需要外接的能源或激勵源(參閱圖1-2(a))。
有源(a)和無源(b)傳感器的信號流程
無源傳感器不能直接轉(zhuǎn)換能量形式,但它能控制從另一輸入端輸入的能量或激勵能
傳感器承擔將某個對象或過程的特定特性轉(zhuǎn)換成數(shù)量的工作。其“對象”可以是固體、液體或氣體,而它們的狀態(tài)可以是靜態(tài)的,也可以是動態(tài)(即過程)的。對象特性被轉(zhuǎn)換量化后可以通過多種方式檢測。對象的特性可以是物理性質(zhì)的,也可以是化學(xué)性質(zhì)的。按照其工作原理,傳感器將對象特性或狀態(tài)參數(shù)轉(zhuǎn)換成可測定的電學(xué)量,然后將此電信號分離出來,送入傳感器系統(tǒng)加以評測或標示。
各種物理效應(yīng)和工作機理被用于制作不同功能的傳感器。傳感器可以直接接觸被測量對象,也可以不接觸。用于傳感器的工作機制和效應(yīng)類型不斷增加,其包含的處理過程日益完善。
常將傳感器的功能與人類5大感覺器官相比擬:
光敏傳感器——視覺 聲敏傳感器——聽覺
氣敏傳感器——嗅覺 化學(xué)傳感器——味覺
壓敏、溫敏、流體傳感器——觸覺
與當代的傳感器相比,人類的感覺能力好得多,但也有一些傳感器比人的感覺功能優(yōu)越,例如人類沒有能力感知紫外或紅外線輻射,感覺不到電磁場、無色無味的氣體等。
對傳感器設(shè)定了許多技術(shù)要求,有一些是對所有類型傳感器都適用的,也有只對特定類型傳感器適用的特殊要求。針對傳感器的工作原理和結(jié)構(gòu)在不同場合均需要的基本要求是:
高靈敏度抗干擾的穩(wěn)定性(對噪聲不敏感) 線性容易調(diào)節(jié)(校準簡易)
高精度高可靠性 無遲滯性工作壽命長(耐用性)
可重復(fù)性抗老化 高響應(yīng)速率抗環(huán)境影響(熱、振動、酸、堿、空氣、水、塵埃)的能力
選擇性安全性(傳感器應(yīng)是無污染的) 互換性低成本
寬測量范圍小尺寸、重量輕和高強度 寬工作溫度范圍
主營產(chǎn)品:Schneider ,Foxboro,Ovatin,Allen-Bradley,Siemens等各類工控產(chǎn)品,
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★企業(yè)名稱:廈門興潤星貿(mào)易有限公司★
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TEXAS INSTRUMENTS PLC 08-35546-000 USPP 0835546000
TEXAS INSTRUMENTS PLC 2261690-1-AA USPP 22616901AA
TEXAS INSTRUMENTS PLC 505-9201 USPP 5059201
TEXAS INSTRUMENTS PLC 505-9202 USPP 5059202
Texas Instruments 505-6870
Texas Instruments 500-5023
Texas Instruments 2493295-0002
TEXAS INSTRUMENTS PLC 505-6850B NSFP 5056850B
Siemens TI 565 PLC Memory Card 560-2134
TEXAS INSTRUMENTS PLC 505-7354 NSPP 5057354
TEXAS INSTRUMENTS PLC 505-5190 NSPP 5055190
TEXAS INSTRUMENTS PLC 500-5024 USPP 5005024
TEXAS INSTRUMENTS PLC 120-1112 NSFP 1201112
TEXAS INSTRUMENTS PLC 500-2153 NSFP 5002153
Texas Instrument VPU200-3102
TEXAS INSTRUMENTS 500-5019 WORD OUTPUT MODULE NEW 5005019
TEXAS INSTRUMENTS 500-5037-A *USED*
Texas Instruments 14 Slot I/O Base Model# 500-5848!
Expedited shipping available
TEXAS INSTRUMENTS PLC 500-5039 NSPP 5005039
Texas Instruments PM550-210
Texas Instruments PM550-100
Texas Instruments PM550-200
TEXAS INSTRUMENTS PLC 500-2114 NSFP 5002114
TEXAS INSTRUMENTS PLC 530C-6202 USPP 530C6202
TEXAS INSTRUMENTS PLC 7MT-1100 USPP 7MT1100
TEXAS INSTRUMENTS PLC 7MT-1300 USPP 7MT1300
TEXAS INSTRUMENTS PLC 505-7510 NSFP 5057510
TEXAS INSTRUMENTS PLC 500-5054 USPP 5005054
TEXAS INSTRUMENTS PLC PM550-551 NSPP PM550551
TEXAS INSTRUMENTS PLC 5TI-1023 USPP 5TI1023
Texas Instruments 500-5022
TEXAS INSTRUMENTS 500-5019 WORD OUTPUT MODULE NEW 5005019
TEXAS INSTRUMENTS PLC 100-3101 NSFP 1003101
TEXAS INSTRUMENTS PLC 140-1111 USPP 1401111
TEXAS INSTRUMENTS PLC 140-1114 NSFP 1401114
TEXAS INSTRUMENTS PLC 164-1112 USPP 1641112
TEXAS INSTRUMENTS PLC 164-2111 USPP 1642111
TEXAS INSTRUMENTS PLC 164-2113 NSFP 1642113
TEXAS INSTRUMENTS PLC 7MT-600 USPP 7MT600
TEXAS INSTRUMENTS PLC 500-5114A USPP 5005114A
Siemens TI 565 PLC Memory Card 560-2136
TEXAS INSTRUMENTS PLC 944935-1541R-AE USPP 9449351541RAE
TEXAS INSTRUMENTS PLC 944935-15V/AE USPP 94493515VAE
TEXAS INSTRUMENTS PLC 500-6224 USPP 5006224
Texas Instruments RTU-DIN-1 Digital Input Board Part# 520-063 520063
Texas Instruments TI 140 Controller 140-1111
TEXAS INSTRUMENTS 505-7354 USPP 5057354
TEXAS INSTRUMENTS PLC 505-5190 USPP 5055190
TEXAS INSTRUMENTS PLC 945940-0001-AC USPP 9459400001AC
TEXAS INSTRUMENTS PLC 505-5184 USPP 5055184
Texas Instrument PM550-200
TEXAS INSTRUMENTS 5TI-1034-2 USED SEQUENCER MODULE 5TI10342
Texas Instruments 500-5051 Thermocouple Module 5005051
Texas Instruments 500-2151-AC Power Supply 5002151AC
SIEMANS TEXAS INSTRUMENTS 5057102 505-7102 MODULE
Texas Instruments 5TI Sequencer 5TI-1019-1 Module
560-2122 TI Texas Instruments Power Supply 5602122
new no Box 565-2820 Texas Instruments CPU 5652820 N742
TEXAS INSTRUMENTS PLC 949024-000-3 USPP 9490240003
Texas Instruments TI128 ( 128-1111 )
Texas Instruments 2461553-0001
Texas Instruments 5TI-2459514
Texas Instruments 7203 interface
Texas Instruments 330-07
TEXAS INSTRUMENTS PLC 500-2151 USPP 5002151
Texas Instrument 560T Processor
Texas Instruments 500-2101
TEXAS INSTRUMENTS CVU-3604 KEYBOARD CVU3604
TEXAS INSTRUMENTS PLC 545-1101 USPP 5451101
TEXAS INSTRUMENTS PLC 575-2102 USPP 5752102
Texas Instruments PM550-410
Texas Instruments PM550-412
TEXAS INSTRUMENTS PLC 505-CP1434-TCP NSFP 505CP1434TCP
TEXAS INSTRUMENTS PLC 525-1102 USPP 5251102
TEXAS INSTRUMENTS PLC 575-4616 NSFP 5754616
TEXAS INSTRUMENTS PLC 505-7201 NSFP 5057201
TEXAS INSTRUMENTS PLC 505-7510 NSPP 5057510
TEXAS INSTRUMENTS PLC 505-6202 NSFP 5056202
TEXAS INSTRUMENTS 5TI-1013 SEQUENCER MODULE ***XLNT***
TEXAS INSTRUMENTS PLC 128-1114 NSFP 1281114
Texas Instruments 500-5047
TEXAS INSTRUMENTS PLC 505-6830 USPP 5056830
Texas Instruments 500-5035
TEXAS INSTRUMENTS PLC 46198-2 USPP 461982
TEXAS INSTRUMENTS TI 500-5038 NETWORK INTERFACE MODULE
Expedited shipping available
Returns: Not accepted
TEXAS INSTRUMENTS PLC 505-7038 NSFP 5057038
TEXAS INSTRUMENTS PLC 510-1102 NSPP 5101102
TEXAS INSTRUMENTS PLC 505-7202 USPP 5057202
TEXAS INSTRUMENTS PLC 505-7016 USPP 5057016
TEXAS INSTRUMENTS PLC 164-2114 NSPP 1642114
Texas Instruments 500-5038 Interface Module #23926
TEXAS INSTRUMENTS PLC 530T-1104 USPP 530T1104
TEXAS INSTRUMENTS PLC PM550-410 USPP PM550410
TEXAS INSTRUMENTS PLC 500-2153 USPP 5002153
TEXAS INSTRUMENTS PLC 500-5056 USPP 5005056
TEXAS INSTRUMENTS PLC 55CR9602001052 USPP 55CR9602001052
TEXAS INSTRUMENTS PLC 5TI-1032-2 USPP 5TI10322
TEXAS INSTRUMENTS PLC 305-17ADC NSFP 30517ADC
TEXAS INSTRUMENTS PLC 500-2151A USPP 5002151A
TEXAS INSTRUMENTS PLC 500-9940 USPP 5009940
Texas Instruments 7MT210
TEXAS INSTRUMENTS 510-1101 PROGRAMMABLE CONTROLLER
TEXAS INSTRUMENTS Siemens TI PN 560-2128
TEXAS INSTRUMENTS Siemens TI PN 560-2136
Returns: Not accepted
Texas Instruments RTU-AOT-1 Analog Output Board 520-066
Texas Instruments RTU-DOR1 Digital Output Relay 520-064 520064 RTUDOR1
SIEMENS TEXAS INSTRUMENTS ENHANCED RUN TIME KEYBOARD CONTROLLER 2587716-8002
Texas Instruments Model: PM 550-210 Power Supply
Texas Instruments 7MT100A
Texas Instruments 7MT100
TEXAS INSTRUMENTS PLC 946077-0006-M USPP 9460770006M
TEXAS INSTRUMENTS PLC 164-1113 USPP 1641113
Texas Instruments CUSTOM PID MODULE
TEXAS INSTRUMENTS PLC 505-6208A USPP 5056208A
TEXAS INSTRUMENTS PLC 505-7359 USPP 5057359
TEXAS INSTRUMENTS PLC 505-7028 USPP 5057028
TEXAS INSTRUMENTS 505-CP5434-FMS USPP 505CP5434FMS
TEXAS INSTRUMENTS PLC 500-5047 USPP 5005047
Texas Instruments PM550-212
Texas Instruments PM550-301
TEXAS INSTRUMENTS PLC 305-6ABM-1 USPP 3056ABM1
TEXAS INSTRUMENTS PLC 565-1101 USPP 5651101
TEXAS INSTRUMENTS PLC 45AF9106000169 USPP 45AF9106000169
Texas Instruments 5TI-3100
TEXAS INSTRUMENTS PLC 500-5021 NSFP 5005021
TEXAS INSTRUMENTS PLC 505-6204 USPP 5056204
TEXAS INSTRUMENTS PLC 510-1102 USPP 5101102
TEXAS INSTRUMENTS PLC 510 NSFP 510
Texas Instrument PM550-100
Texas Instruments 500-5016 Series 500 Analog Output Module 5005016 SIEMENS
Expedited shipping available
Returns: Not accepted
TEXAS INSTRUMENTS PLC 305-17ADC NSPP 30517ADC
TEXAS INSTRUMENTS PLC 5TI-1029-1 USPP 5TI10291
TEXAS INSTRUMENTS PLC 100-3101 USPP 1003101
TEXAS INSTRUMENTS PLC 120-1113 NSFP 1201113
TEXAS INSTRUMENTS PLC 505-CP1434-TCP USPP 505CP1434TCP
TEXAS INSTRUMENTS PLC 949025-000 USPP 949025000
TEXAS INSTRUMENTS 520-1101 USPP 5201101
SIEMENS TI PLC OUTPUT BOARD 6ES5-453-7LA11 6ES54537LA11
TEXAS INSTRUMENTS PLC 500-5114 USPP 5005114
TEXAS INSTRUMENTS PLC 505-7201 USPP 5057201
TEXAS INSTRUMENTS PLC 505-6663 NSFP 5056663
TEXAS INSTRUMENTS PLC 505-7038 USPP 5057038
TEXAS INSTRUMENTS PLC 505-7002 NSFP 5057002
TEXAS INSTRUMENTS PLC 530-1104 USPP 5301104
TEXAS INSTRUMENTS PLC 500-5023 USPP 5005023
NEW TEXAS INSTRUMENTS 500-5056 DIGITAL OUTPUT MODULE 5005056
Texas Instruments 46191 PC Board
TEXAS INSTRUMENT 500-5039 TIWAY NETWORK INTERFACE NIB =
Texas Instruments 100-3101 Programmer TI101 - NEW
Expedited shipping available
Texas Instruments 560-2820 CPU TI 560-2820
560-2820 TI Texas Instruments Power Supply 5602820
TEXAS INSTRUMENTS VPU500-3104 VIDEO PROGRAMMING UNIT
Returns: Not accepted
SIEMENS/TEXAS INSTRUMENTS/CTI 505-7354 PEERLINK ***XLNT***
TEXAS INSTRUMENTS PLC 505-6860 NSFP 5056860
TEXAS INSTRUMENTS PLC 128-1111 USPP 1281111
TEXAS INSTRUMENTS PLC 5TI-1021 USPP 5TI1021
TEXAS INSTRUMENTS PLC 405-6MT NSPP 4056MT
TEXAS INSTRUMENTS PLC 505-6202 USPP 5056202
TEXAS INSTRUMENTS PLC 505-2510 USPP 5052510
TEXAS INSTRUMENTS 500-5016 *USED*
TEXAS INSTRUMENTS PLC 500-5030 NSPP 5005030
TEXAS INSTRUMENTS 464718-1 EJECTOR DRIVER ASSY 464718
Expedited shipping available
TEXAS INSTRUMENTS PLC 500-5021 NSPP 5005021
TEXAS INSTRUMENTS PLC 520C-1102 USPP 520C1102
TEXAS INSTRUMENTS PLC 2497435 USPP 2497435
Texas Instruments/Siemens 505-7202/5057202 Interface
Texas Instruments 500-5037A
TEXAS INSTRUMENTS PLC 305-17ADC USPP 30517ADC
TEXAS INSTRUMENTS PLC 505-7002 NSPP 5057002
TEXAS INSTRUMENTS PLC 505-3532 USPP 5053532
Siemens Texas Instruments PLC Controller 435-CPU 405-15ABM U-55N Used Working
Texas Instrument 560-2120
1 TEXAS INSTRUMENTS 500-5051 THERMOCOUPLE INPUT MODULE L25
Expedited shipping available
Texas Instruments 500-5051 Series 500 Thermocouple Module 5005051
Expedited shipping available
TEXAS INSTRUMENTS 5TI-1034-1 USED SEQUENCER MODULE 5TI10341
TEXAS INSTRUMENTS PLC 560-2127 USPP 5602127
TEXAS INSTRUMENTS PLC 560-2127B USPP 5602127B
575-2104 Texas Instruments TI Siemens 5752104 N3
560-2128 TI Texas Instruments 5602128
New in Box 500-2153 TI Texas Instruments 5002153 N30
TEXAS INSTRUMENTS PLC 505-6851B NSFP 5056851B
TEXAS INSTRUMENTS PLC 0941370-8200 USPP 09413708200
TEXAS INSTRUMENTS PLC 5TI-5339 USPP 5TI5339
Texas Instruments 5TI-5500
Texas Instruments PM550-400
TEXAS INSTRUMENTS PLC 2497447-0001 USPP 24974470001
TEXAS INSTRUMENTS PLC 55CI840390068 NSPP 55CI840390068
Texas Instruments 5TI-1032-2
Texas Instruments 500-5019
Texas Instruments 500-2112
TEXAS INSTRUMENTS PLC 405-6MT USPP 4056MT
TEXAS INSTRUMENTS PLC 505-2590A NSPP 5052590A
TEXAS INSTRUMENTS PLC 500-5055 NSPP 5005055
TEXAS INSTRUMENTS PLC 7MT-210 NSPP 7MT210
TEXAS INSTRUMENTS PLC 505-6870 USPP 5056870
TEXAS INSTRUMENTS PLC 2490871 USPP 2490871
Texas Instruments 500-5031
Texas Instruments 500-5031J
TEXAS INSTRUMENTS PLC 510 USPP 510
TEXAS INSTRUMENTS PLC 500-5061 USPP 5005061
TEXAS INSTRUMENTS PLC 505-6840 NSFP 5056840
Texas Instruments 7MT200
TEXAS INSTRUMENTS PLC 505-6511 NSPP 5056511
TEXAS INSTRUMENTS PLC 505-4932 USPP 5054932
Texas Instruments 500-5018
SIEMENS TI PLC EXPANSION RACK 8 SLOT 6ES5-701-3LA12 NEW
NEW TEXAS INSTRUMENTS MODEL 500-5032 ISOLATED INPUT
Texas Instruments (Siemens) Mdl: 5TI-1082-2 Sequencer
TEXAS INSTRUMENTS 500-5040 NETWORK INTERFACE 5005040
Expedited shipping available
Texas Instrument 500-5016 Analog Output Module
Texas Instruments 500-5114A Base Controller 500-5114-A
TEXAS INSTRUMENTS PLC 505-7002 USPP 5057002
NIB TEXAS INSTRUMENTS TERMINAL COMPUTER 5TI-3102
TEXAS INSTRUMENTS PLC 5TI-3000 USPP 5TI3000
TEXAS INSTRUMENTS PLC 5TI-4000 USPP 5TI4000
TEXAS INSTRUMENTS PLC 500-5047A USPP 5005047A
TEXAS INSTRUMENTS PLC 505-7101 USPP 5057101
TEXAS INSTRUMENTS PLC 510-3103 USPP 5103103
TEXAS INSTRUMENTS PLC 2458740-1 USPP 24587401
TEXAS INSTRUMENTS PLC 500-2114 USPP 5002114
TEXAS INSTRUMENTS PLC 500-5027 NSFP 5005027
Texas Instruments 100-3101 Programmer TI101 #7650
TEXAS INSTRUMENTS PLC 500-2161 USPP 5002161
TEXAS INSTRUMENTS 500 - 5040 NETWORK INTERFACE Module
Returns: Not accepted
TEXAS INSTRUMENTS PLC 500-2101 NSFP 5002101
TEXAS INSTRUMENTS PLC 500-5041 NSFP 5005041
TEXAS INSTRUMENTS PLC 505-6663 USPP 5056663
Texas Instruments 500-5848
Simatic TI330 Direct Logic PLC complete With programmer
Returns: Not accepted
TEXAS INSTRUMENTS PLC TM990/101MA USPP TM990101MA
TEXAS INSTRUMENTS PLC 500-5840 NSFP 5005840
TEXAS INSTRUMENTS PLC 505-7028A USPP 5057028A
Texas Instruments PM550-210 Power Supply PM550210 (UGC)
TI Siemens 500-5054 5005054 Redundant Tiway Peerb PLC
TEXAS INSTRUMENTS PLC 305-DC-04B NSFP 305DC04B
TEXAS INSTRUMENTS PLC 505-6851B NSPP 5056851B
TEXAS INSTRUMENTS PLC 945170-0001-M USPP 9451700001M
TEXAS INSTRUMENTS PLC 7MT-400 NSFP 7MT400
TEXAS INSTRUMENTS PLC 500-5892 NSFP 5005892
TEXAS INSTRUMENTS PLC 5TI-5500 USPP 5TI5500
TEXAS INSTRUMENTS PLC PFS-3604 USPP PFS3604
Texas Instruments 510-1101
TEXAS INSTRUMENTS PLC 505-6851 NSPP 5056851
Texas Instruments 2497435 CMOS IR BD
Siemens TI CTi 575-4616 16 Point 110 VAC Output PLC Texas Instruments 5754616
Texas Instruments 505-7354 MODULE NETWORK I/F 505 PEERLINK 2 LL, 5057354
Texas Instruments model TI 140 and TI 103
Expedited shipping available
SIEMENS TEXAS INSTRUMENTS 555-1103 ``XLNT`` FAST SHIPPING
Enlarge
TEXAS INSTRUMENTS PLC 505-6860 USPP 5056860
TEXAS INSTRUMENTS PLC 505-4317 NSFP 5054317
Texas Instrument 500-5016 analog output module used 9 available
TEXAS INSTRUMENTS PLC 305-14ABM-TM USPP 30514ABMTM
TEXAS INSTRUMENTS PLC 164-1114 NSFP 1641114
Texas Instruments 500-5037
TEXAS INSTRUMENTS PLC 505-6511 USPP 5056511
Texas Instruments 435-CPU
TEXAS INSTRUMENTS PLC 7MT-200 USPP 7MT200
TEXAS INSTRUMENTS PLC 7MT-210 USPP 7MT210
TEXAS INSTRUMENTS PLC 500-5027 NSPP 5005027
TEXAS INSTRUMENTS PLC 500-5884 USPP 5005884
TEXAS INSTRUMENTS PLC 500-5031 NSPP 5005031
Texas Instruments 500-2109
TEXAS INSTRUMENTS PLC 505-6840 NSPP 5056840
SIEMENS TEXAS INSTRUMENTS SYSTEM 505