testing touch screen displays.The fifth characteristic of the surface acoustic wave touch screen is that it has a third axis Z axis, that is, the pressure axis response. This is because the greater the user's power to touch the screen, the wider and deeper the attenuation gap on the received signal waveform. At present, only sonic touch screens have the ability to sense touch pressure among all touch screens. With this function, each touch point is not only two simple states with and without touch, but an analog quantity that can sense. The value is off. This function is very useful, for example, in multimedia information query software, a button can control the speed of animation or video playback.

testing touch screen displays.The fifth characteristic of the surface acoustic wave touch screen is that it has a third axis Z axis, that is, the pressure axis response. This is because the greater the user's power to touch the screen, the wider and deeper the attenuation gap on the received signal waveform. At present, only sonic touch screens have the ability to sense touch pressure among all touch screens. With this function, each touch point is not only two simple states with and without touch, but an analog quantity that can sense. The value is off. This function is very useful, for example, in multimedia information query software, a button can control the speed of animation or video playback. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.