TOUCH SAW
The Touch surface wave has transmitting and receiving piezoelectric transducers for the X and Y axes mounted directly on the faceplate.
The ultrasonic waves within the surface of the glass are directed across the faceplate by an array of reflectors. Reflectors on the opposite side gather and direct the waves to the receiving transducer, which reconverts them into an electrical signal. The process is repeated for each axis.
By touching the screen, a portion of the waves traveling across it are absorbed. The received signals for X and Y are compared to the stored digital maps, the change is recognized and a coordinate is calculated.
Features of SAW
- Pure glass touch screens with superior image clarity, high resolution, good quality light transmition.
- Finger, gloved hand, and soft stylus activation.
- Durable, scratch-resistance glass surface, continues to work if scratched.
- High touch point density: over 10000 touch points per square inch.
- Also available with gasket for outdoor or factory operation (IP65)
- Good stableness without drift, automatic correction, accurate operation.
- Long life expectance, over 50 million touches in one location without failure.
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For all our touchscreens complete interface kits are available. It can be a controller as a component or a RS232/USB interface with cable set and software driver.