Description
SW-MXPRO Eaton touch screen
SW-MXPRO Eaton touch screen
Module Clips Drive controller servo motor
Contact: Mr. Lai
Wechat:17750010683
Whats app：+86 17750010683
Skype：+86 17750010683
QQ: 3221366881
3221366881@qq.com
2.2 Defects of capacitive touch screens
The light transmittance and clarity of the capacitive touch screen are better than the four-wire resistive screen, but of course it cannot be compared with the surface acoustic wave screen and the five-wire resistive screen. The capacitive screen is seriously reflective, and the four-layer composite touch screen with capacitive technology has uneven transmittance of light of various wavelengths, causing color distortion. Due to the reflection of light between the layers, the image characters are also blurred . In principle, capacitive screens treat the human body as a capacitorOne electrode of the component is used. When a conductor is close to the interlayer ITO working surface and a capacitor of sufficient capacitance is coupled, the current flowing away is enough to cause the capacitive screen to malfunction. We know that although the capacitance value is inversely proportional to the distance between the poles, it is directly proportional to the relative area, and is also related to the insulation coefficient of the medium. Therefore, when a larger area of the palm or a conductive object is held close to the capacitive screen instead of touching it, it can cause the capacitive screen to malfunction. In humid weather, this situation is particularly serious. Putting your body within 15 cm of the monitor can cause the capacitive screen to malfunction. Another disadvantage of capacitive screens is that they do not respond when touched with a gloved hand or a non-conductive object, due to the addition of a more insulating medium. The main disadvantage of the capacitive screen is drift: when the ambient temperature and humidity change, and the environmental electric field changes, it will cause the capacitive screen to drift, causing inaccuracy. For example: the temperature rise of the monitor after turning on the screen will cause drift: when the user touches the screen while the other hand or side of the body is close to the monitor, it will drift; larger objects near the capacitive touch screen will drift after being moved, and if someone comes around to watch when you touch the screen, it will drift. It will cause drift; the reason for the drift of the capacitive screen is an inherent technical shortcoming. Although the environmental potential surface (including the user’s body) is far away from the capacitive touch screen, it is much larger than the finger area. They directly affect the determination of the touch position. . In addition, many relationships that should be linear in theory are actually non-linear. For example, people with different weights or fingers with different degrees of wetness draw different total currents, and the changes in the total current and the changes in the four partial currents It is a non-linear relationship. The four-corner custom polar coordinate system used by the capacitive touch screen does not have an origin on the coordinates. The controller cannot detect and recover after drifting. Moreover, after the four A/Ds are completed, the four points are The calculation process from the flow value to the X and Y coordinate values of the touch point on the rectangular coordinate system is complicated. Since there is no origin, the drift of the capacitive screen is cumulative and calibration is often required at the job site. The outermost silica protective glass of the capacitive touch screen is very scratch-resistant, but it is afraid of being hit by nails or hard objects. Knocking out a small hole will damage the interlayer ITO, whether it is damage to the interlayer ITO or damage during installation and transportation. With the ITO layer on the inner surface, the capacitive screen cannot work properly.
3. Infrared touch screen
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1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon controlled 5SHY 3BHB01 3BHE00 3HNA00 DSQC series
BENTLY — 3500 system/proximitor, front and rear card, sensor, probe, cable 3500/20 3500/61 3500/05-01-02-00-001 3500/40M 176449-01 3500/22M 138607-01
Emerson — modbus card, power panel, controller, power supply, base, power module, switch 1C31,5X00, CE400, A6500-UM, SE3008,1B300,1X00,
EPRO — PR6423 PR6424 PR6425 PR6426 PR9376 PR9268 Data acquisition module, probe, speed sensor, vibration sensor
FOXBORO — FCP270 FCP280 FCM10EF FBM207 P0914TD CP40B FBI10E FBM02 FBM202 FBM207B P0400HE Thermal resistance input/output module, power module, communication module, cable, controller, switch
GE —- IS200/215/220/230/420 DS200/215 IC693/695/697/698 VMICPCI VMIVME 369-HI-R-M-0-0-E 469 module, air switch, I/O module, display, CPU module, power module, converter, CPU board, Ethernet module, integrated protection device, power module, gas turbine card
HIMA — F3 AIO 8/4 01 F3231 F8627X Z7116 F8621A 984862160 F3236 F6217 F7553 DI module, processor module, AI card, pulse encoder
Honeywell — Secure digital output card, program module, analog input card, CPU module, FIM card
MOOG — D136-001-007 Servo valve, controller, module
NI — SCXI-1100 PCI – PXIE – PCIE – SBRIO – CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card
Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module, base module
Woodward — 9907-164 5466-258 8200-1300 9907-149 9907-838 EASYGEN-3500-5/P2 8440-2145 Regulator, module, controller, governor
YOKOGAWA – Servo module, control cabinet node unit
Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
