What is SAW?

SAW Technique


The technique:

Surface Acoustic Wave touch screens use transducers mounted at the edge of a glass overlay to emit ultrasonic sound waves along two sides. These waves are reflected across the surface of the glass and received by sensors. A finger or other soft tipped stylus absorbs some of the acoustic energy and the controller measures the amplitude change of the wave to determine touch location.
Because of its high optical clarity and accuracy, acoustic wave technology is typically used in kiosk applications. The tempered glass of 4 to 6 millimeter can be used in harsh environments and it is resistant against the most chemical substances.

The Surface Acoustic Wave touch screen requires finger or a sound absorbing stylus to make a touch event.

 



 


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Tel +49 (0) 234 890 3874-0
 

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