Description
XN-2DO-120/230VAC-0.5A Eaton touch screen
XN-2DO-120/230VAC-0.5A Eaton touch screen
Module Clips Drive controller servo motor
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Infrared touch screens rely on multiple pairs of infrared transmitting and receiving tubes to work. The performance and life of the infrared tubes are relatively reliable. Any object that blocks light can be used as a touch object. However, infrared touch screens use nearly 100 pairs of sensors and share peripheral circuits. , this requires that the sensor itself not only has good performance, but also requires that the “light-resistance characteristics” and “junction capacitance” of nearly 100 pairs of infrared diodes should be consistent. In practical applications, if any pair fails, it can be discovered during the power-on self-test and ignored thereafter, and replaced by adjacent infrared rays. Since each pair of infrared rays only “supervises” a narrow band of about 6mm, and Fingers are usually around 15mm thick and are not noticeable to the user. However, if there is no aging test for infrared emission tubes during the production process and there is no good quality management system, nearly 100 pairs of sensors will soon no longer be a problem of one or two pairs being “left behind”, and the overall lifespan will be difficult to guarantee. The figure below (Figure 6-2) is a schematic diagram of the infrared touch screen
Figure 6-2
The capacitive touch screen itself is actually a set of precision leakage sensors, which cannot be touched by gloved hands. Due to the use of capacitive methods, drift occurs. The capacitive touch screen will be introduced in detail in the next section. Ultrasonic touch screens include surface acoustic wave touch screens and body wave acoustic wave touch screens, both of which use electro-acoustic piezoelectric transducers as sensors. The piezoelectric transistors used in the receiving sensor and the transmitting sensor are not the same type, and the doping materials during manufacturing are slightly different. Differently, the transmitting transducer is more powerful and the receiving transducer is more sensitive. The piezoelectric transducer has a long life and stable operation. Normal operation can guarantee no problems for 10 years. After the touch screen is installed, the transducer is hidden, but care needs to be taken during transportation and installation. The exposed transducer crystal cannot be collided or squeezed. The surface acoustic wave touch screen has two pairs of sensors on the X and Y axes. It uses surface acoustic waves on the screen surface to detect finger touches. It can be said that the working surface is a layer of invisible and indestructible sound energy. It is not afraid of violent use and is most suitable for public information. Inquire.
The above has discussed some concepts in the field of touch screen technology. Of course, it is just a discussion of purely technical principles. To judge a touch screen, the technical principles alone are only part of it. To be applied to various fields, touch screens must withstand thousands of touches. Touch, the durability of the selected materials, the response speed, and whether the price is affordable are all rational ways to judge a touch screen.
Since the current touch screens based on resistive technology are low-priced and can satisfy most of them, the following focuses on the basic principles of resistive touch screens: The screen part of the resistive touch screen is a multi-layer composite film that is very compatible with the surface of the display. It consists
of a Laminated glass or plexiglass is used as the base layer, and the surface is coated with a transparent conductive layer, which is then covered with a layer of outer surface hardened, smooth and scratch-resistant plastic layer. Its inner surface is also coated with a transparent conductive layer, and the two conductive layers are There are many tiny (less than a thousandth of an inch) transparent isolation points between the layers to insulate them. As shown in Figure 6-3
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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
