REC670 1MRK002814-AB Protective devices
REC670 1MRK002814-AB Protective devices
Module Clips Drive controller servo moto
REC670 1MRK002814-AB Protective devicesSuitable for steel manufacturing, thermal power generation, hydroelectric power generation, nuclear power generation, wind power generation, gas supply, and other glass manufacturing, paper mills, mechanical manufacturing, electronic manufacturing, automotive manufacturing, aviation manufacturing, chemical manufacturing, coal mining and selection, oil and natural gas mining and selection, metal mining and selection, and non-metallic mining and selection
4. Sonic touch screen
surface acoustic wave touch screen
Surface acoustic wave touch screen is a touch technology that uses sound waves to position.
At the four corners of the touch screen, sensors for transmitting and receiving sound waves in the X and Y directions are pasted respectively, and 45°
reflection stripes are engraved around it. When a finger touches the screen, the finger absorbs part of the sound wave energy, and the controller detects
the attenuation of the received signal at a certain moment, thereby calculating the position of the touch point.
Surface acoustic wave technology is very stable and highly accurate. In addition to the X and Y
coordinates that general touch screens can respond to, it also responds to its unique third-axis Z-axis coordinate, which is the pressure axis response.
With this function, each touch point is not just a digital switch with or without touch, but an analog switch that can sense greater the pressure, the greater the
attenuation gap on the received signal waveform. The wider and deeper it is.
Among all types of touch screens, only surface acoustic wave touch screens have the ability to
sense touch pressure. The surface acoustic wave touch screen is not affected by environmental factors such as temperature and humidity. It has high
clarity (extremely high resolution), good light transmittance, high durability, good scratch resistance, responsive response, long life, and can maintain clear
and translucent images. Quality, no drift, only need to be calibrated once during installation, good anti-violence performance, most suitable for public information
inquiry and use in offices, government agencies and public places with relatively clean environment.
Curved sonic touch screen
The curved sonic touch screen is based on sound pulse recognition technology. When an
object touches the surface of the touch screen, the sensor will detect the frequency of the sound wave and determine the location of the touch point by comparing
the frequency with the standard frequency pre- stored in the chip. In this way, clothing, luggage, dust and Misidentification caused by environmental factors such as
insects. The sound waves of the surface type touch screen propagate along the surface of the substrate, while the sound waves of the curved type touch screen propagate
inside the substrate, so the anti-environmental interference performance of the curved type is better than that of the surface type. Currently, curved touch screens are
generally used in information kiosks, financial equipment and vending machines that are larger than 5 inches.
5. Optical imaging touch screen
Optical imaging touch screen is a touch technology that uses light for positioning. Light sources and light capture sensors are set at the four corners of the screen . When
an object touches the surface of the touch screen, the light changes, and the touch IC module analyzes the light sensor. The change determines the location of the touch.
Optical imaging touch screens have high durability, are suitable for use in complex environments, and support multi-touch. However, they are easily affected by ambient light,
dust, insects, etc. and may cause misrecognition. Currently, this technology is only used in desktop monitors above 10 inches, education/training, etc.
6. Electromagnetic induction touch screen
The sensor of the electromagnetic induction touch screen is set behind the display screen. The sensor generates an electromagnetic area on the display surface
When the electronic pen touches the display surface, the sensor can determine the position of the touch point by calculating the electromagnetic change. Compared with
other touch screen technologies, electromagnetic induction touch screens have the highest accuracy and resolution, low power consumption, and are thinner and lighter.
They are especially suitable for use in war environments and construction environments. Currently, this technology is mainly used in the U.S. military.
Other touch screen technologies Currently on the market, in addition to the above-mentioned touch technologies, there are also various touch technologies such as
pressure-sensitive, digital sound wave guide, oscillating pointer, etc., which are generally used for special purposes.
Contact: Mr. Lai
Whats app：+86 17750010683
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