Description
XV-102-B5-35MQR-10-PLC Full range touch screen EATON
XV-102-B5-35MQR-10-PLC Full range touch screen EATON
Module Clips Drive controller servo motor
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XLB=XLA+KXXB
YLB=YLA+KYYB Formula 2-1
Among them, KX and KY are the factor coefficients of the touch screen in the X direction and Y direction respectively. This is like a spring (we know that the spring is also linear), and the pulling force is proportional to the spring elongation. KX and KY may be positive or negative, depending on the direction and characteristics of the specific touch screen installation. For each LCD touch screen, we should also calculate the K-factor of each touch screen separately.
If point A is not the origin of the coordinates, it is also any point. Equation 2-1 can be expressed as
XLB=XLA+KX(XB-XA)
YLB=YLA+KY(YB-YA) Formula 2-2
From equation 2-2 we can derive the formula for calculating the K system
KX=(XLB-XLA)/(XB-XA)
KY=(YLB-YLA)/(YB-YA) Formula 2-3
In fact, no matter in any design, humanization is a very important part. The development of information technology has brought the benefits of touch screens to people. Because touch screens can make operations simple and intuitive, more and more handheld products and public service equipment use touch screens. Touch screens include resistive touch screens” title=”Resistive touch screen”>Resistive touch screens, capacitive touch screens, surface acoustic wave touch screens, infrared touch screens, etc. Resistive touch screens are currently widely used, including 4-wire, 5-wire Line, 7 lines, etc.
2 How resistive touch screens work
2.1 Resistive touch screen structure
The working part of a typical touch screen generally consists of three parts. As shown in Figure 1, the cross section of this resistive touch screen is two transparent resistive conductor layers (glass) and an isolation layer (isolation glass beads) between the two conductors. ), and resistive coatings. The resistive conductor layer must be made of resistive material, such as indium tin oxide (ITO), which is coated on the substrate. The upper substrate is made of plastic and the lower substrate is made of glass.
The isolation layer is a viscous insulating liquid material such as Mylar. The electrode is made of materials with excellent conductivity (such as silver ink), and its conductivity is about 1,000 times that of ITO.
2.2 Principle of resistive touch screen
A resistive touch screen is a sensor that converts the physical location of a touch point (X,Y) in a rectangular area into a voltage representing the X and Y coordinates. When enough pressure is applied to the touch screen surface (such as by pressing with a pen tip or finger), contact is created between the top layer and the bottom layer. All resistive touch screens use the voltage divider principle to generate voltages representing the X and Y coordinates. As shown in Figure 2, a voltage divider is implemented by connecting two resistors in series. The upper resistor (R1) is connected to the positive reference voltage (VREF) and the lower resistor (R2) is connected to ground. The voltage measurement at the junction of two resistors is proportional to the resistance of the resistor below. In order to measure a coordinate in a specific direction on a resistive touch screen, a resistive layer needs to be biased: one side of it is connected to VREF and the other side is connected to ground. Also, connect the unbiased layer to the high-impedance input of an ADC. When the pressure on the touch screen is strong enough to make contact between the two layers, the resistive surface is separated into two resistors. Their resistance is proportional to the distance from the touch point to the offset edge. The resistance between the touch point and the ground side is equivalent to the lower resistance in the voltage divider. Therefore, the voltage measured on the unbiased layer is proportional to the distance from the touch point to the ground edge.
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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
