Collection: Sound (SAW) Touch

Surface Acoustic Wave (SAW) touchscreens work by using a series of ultrasonic waves that are sent across the surface of the screen. These waves are created by transducers, which are placed along the sides of the screen.

When a finger or other object touches the surface of the screen, it interrupts the ultrasonic waves and causes a signal to be sent to a controller. The controller then calculates the location of the touch based on the timing and location of the signals received from the transducers.

SAW touchscreens are known for their high image clarity and durability, as they have no layers that can degrade over time. However, they are susceptible to interference from other sources of ultrasonic waves, such as nearby machinery or loudspeakers, which can cause false touch signals.