Surface Acoustic Wave Touchscreens
The Surface Acoustic Wave (SAW) technology is one of the most advanced touch screen types. The technology is based on two transducers (transmitting and receiving) placed for the both of X and Y axis on the touch panel. The other element of SAW is placed on the glass, called reflector. The controller sends electrical signals to the transmitting transducer, and the transducer converts the signal into ultrasonic waves and emits to the reflectors that are lined up along the edge of the panel. After the reflectors refract waves to the receiving transducers, the receiving transducer converts the waves into an electrical signal and sends it back to the controller. When a finger touches the screen, the waves are absorbed, causing a touch event to be detected at that point.
Because the panel is all glass, there are no layers that can be worn, giving this technology the highest durability factor and also the highest clarity. Compared to resistive and capacitive technologies, it provides superior image clarity, resolution, and higher light transmission.
This technology is recommended for ATMs, Amusement Parks, Banking and Financial Applications, public information kiosks, computer based training, or other high traffic indoor environments.
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Specifications |
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Touch Technology |
Surface Acoustic Wave(SAW) Touch Technology |
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A. Mechanical |
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Input Method |
Finger, gloved hand |
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Available Size |
8.4” -32” |
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B. Electrical |
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Positional Accuracy |
Standard deviation of error is less than 0.080 in. (2mm) |
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Resolution |
Touchpoint density is based on controller resolution of 4096x4096; Plus 255 levels corresponding to touch pressure. |
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Touch Activation Force |
Typically 100g |
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Controller |
Serial (RS232) or USB |
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C. Optical |
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Light Transmission |
Up to 98% |
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D. Environmental |
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Temperature |
Operating: -20° Cto 50° C;
Storage: -40° Cto 71° C |
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Relative Humidity |
Operating: 40° Cat 10%~90% RH. Non-condensing |
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Altitude |
3000M |
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Chemical Resistance |
The touch active area of the touch screen is resistant to chemicals that do not affect glass, such as: acetone, toluene, methyl ethyl ketone, isopropyl alcohol, methyl alcohol, ethyl acetate, ammonia-based glass cleaners, gasoline, kerosene, vinegar. |
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Electrostatic Protection |
Per EN 61000-4-2.1995: Meets level 4(15kV air/8kV contact discharges) |
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Sealability |
Can be sealed to meet NEMA 3/3R/5/12/12K/13. IP64 standards |
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E. Durability |
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Surface Durability |
Surface durability is that of glass. Mohs’ hardness rating of 7 |
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Expected life |
No known wear-out mechanism, as there are no layers, coatings or moving parts. Utouch technology has been operationally tested to more than 50 million touches in one location without failure, using a stylus similar to a finger. |
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Warranty |
Touchscreen: 5-year limited warranty
Controller: 3-year limited warranty |
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Agency Approvals |
CE, FCC, RoHS |
Since our foundation in 1999 and branded in "UTouch", Beijing IT01 Co., Ltd. Is a professional manufacturer focusing on researching and producing SAW (Surface acoustic wave) touch screen, touch monitor, touch kiosk and AD player (for building and car)with our own patent. We offer the largest selection of touch screen technologies, SAW touch screen, touch monitor and carefully design each product for the demanding requirements of diverse applications, such as industrial, medical, POS, kiosks, retail, hospitality, transportation, office automation, and gaming.
We are located in Beijing Zhongguancun High-tech Development zone, with such an advantageous technical and human resources, among the 20 R&D personnel, 95 percent have achieved a bachelor's degrees and even higher. Experienced electronic engineers and specialist technical personnel guarantee the technical services.
Up to now, we have expanded our product line with a series of new applications: Safe Touch, Dust proof, Kiosk Touch, Bevel Touch, and integrated touch monitors. We were granted ISO9001 and CE, FCC certifications. Our products had been sold to many countries all over the world such as Korea, Russia, Egypt, KSA, Ireland, Netherland.
Due to perfect cooperation with the customers from domestic and abroad, and hard working of all staffs, Beijing IT01 Co., Ltd has been growing by leaps and bounds. We would like to extend our warmest invitation to all overseas and mainland customers who want to pay a visit, provide suggestions or seek business co-operation.
