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USES OF TOUCHSCREENS

Touchscreens are used in information kiosks, computer based training devices, and systems designed to help individuals who have difficulty manipulating a mouse or a keyboard. Touchscreen systems are also used in a variety of applications, including point of sales systems, public information displays, industrial control systems, etc.
There are a number of touchscreen technologies: RESISTIVE: A resistive touchscreen panel is composed of several layers. SURFACE ACOUSTIC WAVE: Surface acoustic wave (SAW) technology uses ultrasonic waves that pass over the touch screen panel. CAPACITIVE: Such panels are coated with indium tin oxide that conducts a continuous current across the sensor. INFRARED: Method uses an array of vertical and horizontal IR sensors that detect the interruptions of a modulations light beam near the surface of the screen. STRAIN GAUGE: Here the screen is spring mounted on the 4 corners and strain gauges are used to determine deflection when the screen is touched. There are several other technologies like Optical imaging, dispersive signal technology, and acoustic pulse recognition: Frustrated total internal reflection and Diffused laser imaging

Comments

Seni varghese said…
gr88 work.....
12:26 AM
KanishK said…
keep doing
1:39 AM
tarushi said…
good work
1:53 AM
Kumar bishal said…
nic work.......
5:46 AM
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