19inch Surface Acoustic Wave Touch Screen Single Touch with USB
Controller
SAW - HOW IT WORKS
A known sound wave is transmitted along both axes of the glass
surface. When the finger or pen makes contact with the screen the
sound wave is attenuated. Speed of sound is constant so time is
used to determine the location of the attenuation in both the X and
Y Axis.
Simple transducers on a glass surface mean that there is nothing to
wear out.
Limitations of SAW Touch Screen Technology
Must be touched by finger, gloved hand, or soft-tip stylus.
Something hard like a pen, credit card or finger nail won't work
Can be affected by large amounts of dirt, dust, and / or water in
the environment.
Benefits of SAW Touch Screen Technology
- High durability. Scratch-resistant.
- High clarity and light transmission
- Easy for customizing.
- Short response time
- Strong mechanical strength
- Compact size for easy integration
- Customization available on glass sensor size, driver, accessories
- CJtouch provides 5 years warranty for touch glass, 3 years for
controller.
Often utilized in ATMs, amusement parks, public information kiosks,
computer based training and other high traffic indoor environments,
SAW touch screens are not recommended to be used outdoors, as deep
scratches in the glass surface or contaminants like dirt, insects
and water droplets can interfere with the touch.
With an extra-long operating life sometimes exceeding 50 million
touches in one location, SAW touch screens offered by CJtouch are
an ideal solution for a variety of industries.
Specification of Product
| Technology | Surface Acoustic Wave(SAW) |
| Sizes | 8" to 32" (extending) |
| Controller Interface | USB OR RS232 |
| Resolution | 4096*4096 ,Z-axis 256, not related with the sizes of the touch
screen panel |
| Material | Pure glass |
| Positional Accuracy | Standard deviation of error is less than 0.080 in.(2mm) |
| Light Transmission | More than 90% per ASTM |
| Touch Activation Force | 30-60g |
| Durability | Scratch-free; More than 50,000,000 touches in one location without
failure. |
| Surface Hardness | Mohs' hardness rating of 7 |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 10%-90% RH at 40°C, non-condensing |
| Operation Altitude | 3800m |
| Accessories | Connector cables, double-sided glue, dust-proof stripes |
| Agency Approval | CE, FCC, RoHS, |
| Controller technical specification: |
| Sizes(PCB) | 85mm*55mm*10mm |
| Working voltage | 12V±0.5V |
| Working Current | 80mA |
| Maximum Current | 100mA |
| Response time | ≤10ms |
| Operating temperature | -10°C-70°C |
| Operating humidity | 10%-90%RH. |
| Storage temperature | -25°C-80°C |
| Multi-Point Touch | Intelligent discrimination by software |
| Agency Approval | CE, FCC, RoHS |
Picture of Product
Technical Drawing
