(The Gist of Science Reporter) Surface Acoustic Wave  [MARCH-2018]

(The Gist of Science Reporter) Surface Acoustic Wave

 [MARCH-2018]

Surface Acoustic Wave

It does not have any layer instead uses a transducer placed along the edge of the glass that sends an ultrasonic wave across the glass. A receiver on the other end receives the waves. The two transducers are placed along the X and Y axis of the screen. When the user touches the screen, it disturbs the waves and position of the disturbance computed to register the location of the input.

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Courtesy: Science Reporter