Sensory monitors are offered in different acquisition: c by the capacitance-resistance screen of AccuTouch, with the abat-voix of IntelliTouch and with a screen on technology of APR. What difference and features are in them?
Technology AccuTouch developed for the use in the conditions of aggressive environment, therefore the touch screens of AccuTouch excel other screens at reliability and longevity. Capacitance-resistance screens possess maximal firmness to contamination. This feature allows AccuTouch to be not afraid of hit on the working surface of liquids, runback, steams - and reliably to work, when other types of screens fall out. A screen maintains 35 million touches to one point.
In basis of touch screens IntelliTouch original technology is fixed, using principle of superficially-acoustic waves. A screen presents from itself a glass panel, that allows to get a maximally quality image on Your sensory monitor. The surface of screens of IntelliTouch is able to resist to the mechanical damages. Touch to the screen a finger, by a hand in a glove or стило and you will get an exact answer for a touch. Touch screens of IntelliTouch oneself was perfectly shown in trade, sphere of educating, intellectual building.
A company Elo TouchSystems worked out absolutely new and unique technology of touch screen of Acoustic Pulse Recognition(APR) is Recognition of acoustic impulse, that unites in itself all best qualities of sensory technologies of AccuTouch and IntelliTouch :
- Excellent quality of image
- Wearproofness, stable work
- Works from the touch of hand, hand in a glove, by a credit card etc.
- Steady to contaminations on fatty and water basis
- Possesses ardor - and by water-repellent properties
- In case of occurring of scratches on the surface of glass continues stably to work
- Absolutely flat surface
- Calibration is conducted one time, the repeated is not required
- Thickness of screen just a 5 mm
- Rapid response at a touch to the screen
Compare on principle of work and you will be able to be determined what screen anymore befits you:
Device of capacitance-resistance screen
Executed in accordance with geometry of monitor, the screen of AccuTouch consists of the glass panel covered by the layer of plastic. Space between glass and plastic is separated by микроизоляторами that is evenly up-diffused on the active area of screen and reliably insulate conducting surfaces. At an easy touch surfaces adjoin. A comptroller registers the change of resistance, will transform him in the coordinates of touch(X and Y) and passes them on the system tire of computer.
As a comptroller determines the coordinates of touch
When a comptroller expects pressure, capacitance-resistance coverage of touch screen is under tension +of 5В, and подложка is earthed, due to микроизоляторов between these surfaces high resistance is saved. When nothing touches a touch screen, tension on подложке is equal to the zero. Level of tension of подложки constantly преобразовывется by an analog-to-digital transformer(ADC) and watched by the microprocessor of comptroller. When to the screen touched, a microprocessor caught the change of tension of подложки and begins to calculate the coordinates of touch as follows: A. A microprocessor determines tension on the axis of Х by the serve of tension +of 5В on the contacts of H and X and earths the contact of Y and L. Value of tension, proportional Х appears the coordinate of touch on подложке and fixed on the contact of S of socket of screen. This tension is digitised through ADC according to the algorithm of усреднения and then temporally saved for a transmission on port(host). B. After it a comptroller does a the same operation for the axis of Y. Accordingly, by the serve of tension on the contacts of H and Y and grounding of contacts of X and L, got on the contact of S tension is also digitised, becomes level and saved for a subsequent transmission in port.