6ES7951-0FE00-0AA0 保养选亿佳
根据传感器的类型,触摸屏大致被分为红外线式、电阻式、表面声波式和电容式触摸屏四种。 红外线技术触摸屏价格低廉,但其外框易碎,容易产生光干扰,曲面情况下失真;电容技术触摸屏设计构思合理,但其图像失真问题很难得到根本解决;电阻技术触摸屏的定位准确,但其价格颇高,且怕刮易损;表面声波触摸屏解决了以往触摸屏的缺陷,清晰不容易被损坏,适于场合,缺点是屏幕表面如果有水滴和尘土会使触摸屏变得迟钝,甚至不工作。
红外线式触摸屏
红外线式触摸屏在显示器的前面安装一个电路板外框,电路板在屏幕四边排布红外发射管和红外接收管,一一对应形成横竖交叉的红外线矩阵。用户在触摸屏幕时,手指就会挡住经过该位置的横竖两条红外线,因而可以判断出触摸点在屏幕的位置。任何触摸物体都可改变触点上的红外线而实现触摸屏操作。
红外线式触摸屏特
红外式触摸屏不受电流、电压和静电干扰,适合某些恶劣的环境条件。其主要优点是价格低廉,安装方便,不要卡或任何其他控制器,可以用在档次上的计算机。此外,由于没有电容充放电过程,响应速度比电容式快,但分辨率较低。
电阻式触摸屏
电阻屏外层一般使用的是软屏,通过按压使内触点上下相连。内层装有物理材料氧化金属,即N型氧化物半导体——氧化铟锡(IndiumTinOxides,ITO),也叫氧化铟,透光率为80%,上下各一层,中间隔开。ITO是电阻触摸屏及电容触摸屏都用到的主要材料,它们的工作面就是ITO涂层,用指尖或任何物体按压外层,使表面膜内凹变形,让内两层ITO相碰导电从而定位到按压点的坐标来实现操控。根据屏的引出线数,又分有4线、5线及多线。一般是不能多点触控,即只能支持单点,若同时按压两个或两个以上的触点,是不能被识别和找到坐标的。在电阻屏上要将一幅图片放大,就只能多次点击“+”,使图片逐步进阶式放大,这就是电阻屏的基本技术原理。
1 at MostElectric: QMB364 SQUARE D
1 at MostElectric: QMB363T SQUARE D
1 at MostElectric: PTQ3680GH SQUARE D
1 at MostElectric: PTB302G SQUARE D
1 at MostElectric: PJA36120U41A SQUARE D
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* * Square D S33595 Full Function Tester Set Circuit Breaker Test Kit
* * Square D DJA34250E53 I-Line Powerpact Breaker 250A Trip - 480V (DJ 400)
**SEALED** Square D/Schneider Electric MAP26800 800 Amp breaker **WARRANTY**
**SEALED** Square D/Schneider Electric KI36175 600 Volt 3 Phase **WARRANTY**
* Square D Busduct, Plugs, and Tap Box * ( One lot )
(NOS) Square D Youngstown No 5 Power Limit Switch 6170 AG2 Series A 51064-004-51
#SLS1CB15 Tie Breaker Square D 1 Line 2 Cat # PPE367600GCBR2BBM 30251MP
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Westinghouse DS-416 1600A frame/Sensor Breaker Amptector I-A Model LSG Square D
V110233 Square D Company Cat. 225TQ56374R1 General Purpose Transformer (225kVA)
V110219 Square D Company Cat. 225T64HB General Purpose Transformer (225kVA)
Updated Square D Powerlogic CM4000 Circuit Monitor
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SQUARE D SY/MAX 8020 SCP423
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SQUARE D S164B
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Square D NXL361200G Circuit Breaker 1200 Amps 600VAC Ground Fault
Square D NC361000 I-Line Circuit Breaker 1000 Amps 600VAC
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Square D MX36800 800 amp I-Line Electronic Trip Circuit Breaker 600VAC
Square D MJA36700 MJ 700 PowerPact Circuit Breaker 700 Amps 600VAC
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Square D MHP36000M6451 Molded Case Switch 1000 Amps 600VAC
Square D MHL3640025DC1679 Shunt Trip Circuit Breaker 400 Amps 600VDC
Square D MHL3640025DC1679 3p 400a 600v Breaker With Aux and UV 1-yr Warr
Square D MH36600 I-Line Circuit Breaker 600 Amps 600 VAC
Square D MH36600 600 amp I-Line Molded Case Circuit Breaker 600VAC
Square D MGP36600 MG 600 PowerPact Circuit Breaker 600 Amps 600VAC
Square D MGM36800 MG 800 PowerPact Circuit Breaker 800 Amps 600VAC
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Square D ME36600LIG I-Line Electronic Trip Circuit Breaker 600 Amps 600VAC
SQUARE D ME36400LSG 400AMP CIRCUIT BREAKER 3 POLE 600V SERIES 5 GROUND FLT
SQUARE D ME36225LSG 225AMP CIRCUIT BREAKER 3 POLE 600V SERIES 5 GROUND FLT
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Square D MA3700 3 Pole 700 Amp 600 Volt SqD Circuit Breaker
Square D MA36500 3 Pole 500 Amp 600 Volt Circuit Breaker
Square D MA3450 450 Amp 3 Pole 600 Volt MA SqD Circuit Breaker
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Square D MA3225 with 120V Shunt Trip 3 Pole 225 Amp Circuit Breaker
Square D MA3225 3 Pole 225 Amp 600 Volt Circuit Breaker
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Square D KI36200 3p 200a 600v Circuit Breaker 1-yr Warranty
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Square D KHL36125 1287 3 Pole 125 Amp 600 Volt Breaker with Aux and UVR
Square D KHL36121287 3 Pole 125 Amp 600 Volt Breaker with Aux and UVR 1044
Square D KCL342506151 3p 250a 480v Circuit Breaker With Auxiliary And Shunt
Square D KCL342501027 3p 250a 480v Circuit Breaker With 24v Shunt
Square D KCL34150 3p 150a 480v Circuit Breaker 1-year Warranty
Square D KCL341101021 3p 110a 480v Circuit Breaker With Shunt 1-yr Warranty
Square D KC34225 I Line Circuit Breaker 3 Pole 225 Amp 480V SqD
Square D KC34225 I LINE Circuit Breaker 3 pole 225 amp 480 volt
Square D KC34225 3p 225a 480v Circuit Breaker 1-yr Warranty
Square D KC34200 I LINE Circuit Breaker 3 pole 200 amp 480 volt
Square D KC341751021 3p 175a 480v Shunt Trip Circuit Breaker 1-yr Warranty
Square D KC34150 Circuit Breaker 3 pole 150 amp 480 volt
Square D KC34150 3p 150a 480v Circuit Breaker 1-yr Warranty
Square D KC34125 3p 125a 480v Circuit Breaker 1-yr Warranty
Square D KAL36250 Circuit Breaker 3 pole 250 amp 600 volt
Square D JLP36175 3p 175a 600v Load Side Lugs Circuit Breaker 1-yr Warranty
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Square D CM4000 PowerLogic Circuit Monitor Series D1 CVM
Square D ATV21HD30N4 S-FLEX Enclosed Variable Frequency Drive 40 HP
SQUARE D 8884-SPR-25 ,SY/MAX20 CRT PROGRAMMER ,EC
Square D 8736SH01H31S NEMA Size 6 Reversing Contactor 150 to 400 HP
Square D 8020 SCP-523 SY/MAX Model 500 Processor
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Square D 45 KVA 208-400Y/231 EE45T3022HB 3 Phase Transformer TP1
Square D 45 KVA 208-400Y/231 45T2404H42DB 3 Phase Transformer
Square D 300 KVA General Purpuse Transformer HV 575 Delta LV 480 Delta
Square D 112.5 KVA 480/277-208Y/120 3 Phase Transformer
Square D 112.5 KVA 480/208/120 3 Phase Transformer
SqD Square D MA3500 MA 3 Pole 500 Amp 600 Volt Circuit Breaker
SqD Square D I Line Breaker KC34250 3 pole 250 Amp 480V
LOT 2 SQUARE D RIM731,8030 SY/MAX 64PT INPUT 8030-RIM-731,S30608-581-50 ,EB
KHL3625025DC1616 with Auxiliary Switch and Undervoltage Trip Unit
7.5 HP Adjustable Frequency Drive SQ D M Flex FLEX58KU72N4 Telemecanique
7.5 HP Adjustable Frequency Drive SQ D M Flex CAT FLEX58KU72N4 Combination
5 HP Adjustable Frequency Drive SQ D M Flex FLEX58KU54N4 Telemecanique
3 HP Adjustable Frequency Drive SQ D M Flex CAT ATV61HU15N4 Combination
20 HP Adjustable Frequency Drive SQ D M Flex ATV61HD11N4 Telemecanique
125 HP Motor Controller SQ D Altivar ATV66C10N4U Telemecanique
112.5 KVA Dry Type Transformer HV 480 Delta LV 208 Y / 120 Sq D CAT 112T3H
1 HP Adjustable Frequency Drive SQ D M Flex CAT FLEX58KU18N
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UpTo 30 at MostElectric: 8910DPA123V03 SQUARE D ConTACTOR 240 COIL
UpTo 11 at MostElectric: FAL3610018M SQUARE D NIB FAL36100-18M
UpTo 1 at MostElectric: FTL3200 SQUARE D 200 AMP FUSIBLE PULLOUT
UN SQUARE-D LA36400-2353 400A 600VAC CIRCUIT BREAKER w/ AUX switch
UN SQUARE-D LA36300 600 VAC 300 Amp 3 Pole CIRCUIT BREAKER
UN SQUARE-D 8536SFO1V02H30S SIZE 4 OPEN STARTER 120V COIL
UN Square D MHL260008 600 VAC 800 Amp 3 Pole CIRCUIT BREAKER
UN SQUARE D LAL36400 600 VAC 400 Amp 3 Pole CIRCUIT BREAKER
UN SQUARE D LAL36400 -1021 600 VAC 400 A 3 P CIRCUIT BREAKER w/ SHUNT TRIP
UN SQUARE D LAL36300 600 VAC 300 Amp 3 Pole CIRCUIT BREAKER