按照觸摸屏的工作原理和傳輸信息的介質(zhì),我們把觸摸屏分為四種,它們分別為電阻式電容感應(yīng)式紅外線式以及表面聲波式每一類觸摸屏都有其各自的優(yōu)缺點(diǎn) 1.電阻式觸摸屏 該觸摸屏利用壓力引發(fā)電阻變化而進(jìn)行控制。電阻式觸摸屏的表面要蓋著一層和顯示屏幕連接非常 緊密的電阻薄膜，當(dāng)手指或手寫筆觸摸屏幕時(shí),電阻薄膜在觸摸點(diǎn)位置就有了接觸,電阻發(fā)生變化,在X和Y兩個(gè)方向上產(chǎn)生相應(yīng)信號,觸摸屏控制器就會(huì)識別該信號并計(jì)算出坐標(biāo),送至CPU。 2.電容式觸摸屏 該觸摸屏是利用人體的電流感應(yīng)引起電容變化而進(jìn)行工作的。當(dāng)手指觸摸在屏上時(shí),由于人體電場,用戶和觸摸屏表面形成-個(gè)耦合電容,對于高頻電流來說,電容相當(dāng)于導(dǎo)體,于是手指從接觸點(diǎn)吸走個(gè)很小的電流。 這個(gè)電流分別從觸摸屏四角上的傳感器中流出,并且流經(jīng)這4個(gè)傳感器的電流與手指到四角的距離成正比,控制器通過對這4個(gè)電流比例的**計(jì)算,得出觸摸點(diǎn)的位置。 電容式觸摸屏對于外界干擾以及每個(gè)用戶手指情況的不同(干濕度、膚質(zhì)等) ,有著不同程度的誤差。
SIEMENS 40 AMP 3 POLE CIRCUIT BREAKER ED63B040
Customs services and international tracking provided
Expedited shipping available
SIEMENS ED63B040 CIRCUIT BREAKER
Customs services and international tracking provided
SIEMENS ED63B040MX/ED63B040 CIRCUIT BREAKER ***NIB***
SIEMENS ED63B040 BREAKER NEW!
SIEMENS ITE CIRCUIT BREAKER 40 AMP 600V 3 POLE ED63B040
Customs services and international tracking provided
Soprano SA63C1B040 Circuit Breaker
Customs services and international tracking provided
SIEMENS HHED63B015A HHED63M040L HHED63M050 CIRCUIT BREAKER NEW IN BOX.!!!--
From Mexico
NEW IN BOX - Siemens ED63B040 Circuit Breaker - Free UPS Ground
NEW IN BOX - Siemens HHED63B040 Circuit Breaker - Free UPS Ground
SIEMENS 40 AMP 3 POLE CIRCUIT BREAKER TYPE ED6 ED63B040
Customs services and international tracking provided
NEW IN BOX - Siemens ED63B040 3P/40A/600V Circuit Breaker
Customs services and international tracking provided
NEW IN BOX - Siemens / ITE CED63B040 Circuit Breaker - Free UPS Ground
USED Siemens ED63B040 Circuit Breaker 3 pole 40 amp 600 volt
Customs services and international tracking provided
NEW Siemens ED63B040 Circuit Breaker 3 pole 40 amp 600 volt
Customs services and international tracking provided
SIEMENS ED63B040 CIRCUIT BREAKER NEW IN BOX.
From Mexico
YAMATAKE C206DA009D1 USPP C206DA009D1
Used with 3 Month Warranty.
Omron C500-DA002 D/A Unit 3G2A5-DA002 DA 3G2A5DA002 C500DA002 PLC Module
OMRON C200H-DA002 D A UNIT C200HDA002
Omron C200H-DA002 C200HDA002 D/A Unit
From Philippines
OMRON SYSMAC **NEW** C200H-DA002 D/A UNIT (1D3)P
OMRON C200H-DA002 C200HDA002 D/A Unit
OMRON C200H-DA002 PLC Output Module D/A Unit
From Slovenia
PEUGEOT 206 HATCHBACK 1.9 D 1998 TO 2001 RADIATOR FAN SWITCH SRF002 SMP
PEUGEOT 206 / CITROEN C2, C3 1999-2004 1.1 HFX INJECTOR IPM 002
PEUGEOT 206 VAN 1.9 D 1999 TO 2007 RADIATOR FAN SWITCH SRF002 SMP
1942 (3-12) Regno d'Italia C.F.L'ammiraglio inglese (C.C.108/1 p.5) da P.M.206 (
From Italy
Omron C200H-DA002/C200HDA002 D/A Converter
Anime Dakimakura pillow case CD002 D.C. ~Da Capo~ ~ Kotori Shirakawa
PATTINI FRENO ANT BOSCH 0986494039 PEUGEOT 206 2 VOL C.SPIOV 1.9 D WJZ EQ 425166
From Italy
NEW Inverter YNV-C03 DA-1A08-C002A DA-1A08-C004A
D1 KAWASAKI C2SS C2TR BRAKE ROD NUT 92015-002 C2 SS/TR
NEW 1PCS C200H-DA002 OMRON C200HDA002
New inverter PWA-TF041 DA-1A08-C002A DA-1A08-C004A H63 - GUARNATEED
Lite On PS-2142-1D1 1470 Watt Alimentatore / Power Supply D46147-002 C55140-006
90894 Used, Omron C200H-DA002 D/A Unit -10V - +10V 4mA - 20mA
US Stamps # 206s-d 1c Franklin FINE Unused Fresh Type D Overprint
Lite On PS-2142-1D1 PS 2142 1D1 1470 Watt Server Netzteil D46147-002 C55140-006
1942 (14-4) Regno d'Italia B.F.(C.C.3/15) da P.M.206 (Jugoslavia p.5) per Casb
From Italy
Kawasaki KV75 MT1 D1 C2TR C2SS CONTACT BREAKER POINTS 21008-002 NOS
2x Eibach Federn VA 30mm Peugeot 206 Schr?gheck 2A/C 1.9 D, 2.0 HDI, 1.6 HDI
ABS Sensor vorne Peugeot 206 Schr?gheck 2A/C 1.4 HDi eco 70 1.6 16V 1.6 i 1.9 D
2 x ABS Sensor vorne Peugeot 206 Schr?gheck 2A/C 1.4 HDi 1.6 16V 1.6 i 1.9 D
ABS Sensor vorne Peugeot 206 CC 2D 1.6 16V 2.0 S16 Schr?gheck 2A/C 1.1 i 1.4 i
D Dronell Wheels Chrome Custom Wheel Center Cap #C002 (1)
Customs services and international tracking provided
1943 (6-7) Regno d'Italia B.F.(C.C.28/11a p.4) da P.M.163 (Sicilia-206 Div.Costi
From Italy
Signalboard Mainboard Acer AL1712 DA0L7TMB2C1 55.L13VE.002
2 x ABS Sensor vorne Peugeot 206 CC 2D 1.6 16V 2.0 S16 Schr?gheck 2A/C 1.1 1.4 i
1 x Radlagersatz Hinterachse FAG 713803810 CITRO?N C2 C2 ENTERPRISE C3 C3 II 206
MAZDA 121 I DA ?Vorderachse bs rechts au?en? HERTH+BUSS GELENKSATZ
Power Platine Board Acer Aspire 6530 6530G DA0ZK1TR6D0 55.AUR07.002
KIA PRIDE DA Kombi ?Vorderachse bs rechts au?en? HERTH+BUSS GELENKSATZ
BETA 308175-002D1C USPP 308175002D1C
Used with 3 Month Warranty.
KAWASAKI MT1 D1 C2SS C2TR POINTS 21008-002
PEUGEOT 206 HATCHBACK (2A/C) 09/1998-11/2001 Wiper Blade/Wisserblad/Balai d'essu
From Belgium
Used Sony D1 Board 1-474-206-11 (c3)
Yaskawa SGDH-04AE & SGMAH-04AAA2B -AC Servo Drive & Servo Motor 400W
From Korea, South
NEW NIB Yaskawa SGMAH-04A1A6C 400W 200V AC Servo Motor NIB NEW SGMAH04A1A6C
Yaskawa SGDM-04ADA & SGMAH-04AAA2B -AC Servo Drive & Servo Motor 400W
From Korea, South
SAJF// YASKAWA SGMAH-04AAA2B AC SERVO MOTOR USED
From Korea, South
Newly ListedYASKAWA ELECTRIC SGMAH-04A1F4C USPP SGMAH04A1F4C
Used with 3 Month Warranty.
YASKAWA SGMAH-04AAF41D 3000RPM/MIN SERVO MOTOR 200V-AC 2.8A 400W 1.27NM B311842
Yaskawa SGDP-04APA w/ SGMAH-04A1A 400W 200V (E/K)
From Singapore
YASKAWA AC SERVO MOTOR SGMAH-04A1A21
From Korea, South
Yaskawa SGMAH-02B1A6C AC Servo Motor Used Working
Yaskawa servo motor SGMAH-A5A1A2C
Brand New In Box Yaskawa AC Servomotor SGMAH-A3A1F41, S2 MTR 200V 30W ABS ENC K
Customs services and international tracking provided
KOGANEI USED SGMAH-04A1A-HL11 PLC (AC2)
Yaskawa SGMAH-A5AAA2B AC Servo Motor 50W
From Korea, South
YASKAWA USED SGMAH-04A1A-HL11 PLC (AC2)
YASKAWA SERVOPACK SGDP-04APA WITH SGMAH-04A1A-AD21 SERVO MOTOR
YASKAWA SGMAH-A5A1A2B SERVO MOTOR 50W NEW
YASKAWA USED SGMAH-04A1A6C PLC (AC4)
YASKAWA AC SERVO MOTOR,SGMAH-A3B1A21 #1
From Korea, South
(AC04) YASKAWA SGMAH-02A1A21 AC SERVO MOTOR WORKING
From Korea, South
Yaskawa servo motor SGMAH-04A1F-YA11 2 month warranty
KOGANEI USED SGMAH-A5BAA2B PLC (AC2)
USED YASKAWA USED SGMAH-04A1A6C PLC
KOGANEI USED SGMAH-01B1A41 PLC (AC2)
YASKAWA USED SGMAH-04A1F-YA11 PLC (AB9)
KOGANEI USED SGMAH-02A1A6B PLC (AC2)
YASKAWA USED SGMAH-04A1A6C PLC USED
YASKAWA USED SGMAH-02A1A6B PLC (AC2)
YASKAWA AC SERVO MOTOR SGMAH-02B1A21 WORKING
From Korea, South
YASKAWA USED SGMAH-A5B1A21 PLC (AB9)
Yaskawa SGMAH-08A1A2C & SGDH-08AE - Servo Motor & Motor 750W
From Korea, South
