Browsing by Author "Ak A.F."

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    An experimental study of a piezoelectrically actuated touch screen
    (Institute of Electrical and Electronics Engineers Inc., 2017) Sari G.; Akgül M.B.; Kirişken B.; Ak A.F.; Akiş A.A.
    An audiovisual feedback is used on touch screens in portable electronic devices. When these devices are used in noisy and distracting environments, suitable available feedback methods is severely inadequate and the availability of the device severely reduced. For these reasons, touch screen technology has become a popular recently. These panels used in many sectors such as watches, cars, mobile devices, aerospace. Touch screens, which provide tactile feedback to the user, are activated using solenoid actuators, coil-type actuators or vibration motors. The use of evolving piezoelectric vibrators has attracted considerable attention in recent years to obtain high-resolution tactile feedback. Their higher bandwidth helps create more user-perceivable haptic effects. In this work, we experimented to observe the effect of the piezo vibrator on the screen. As a result, the various types of tactile feedback functions will be developed on the screen and compared. The best vibration functions depending on the settings are obtained through experiments. © 2017 IEEE.
  • No Thumbnail Available
    Item
    Numerical analysis of vibrating touch screen actuated by piezo elements
    (Institute of Electrical and Electronics Engineers Inc., 2017) Ak A.F.; Sari G.; Akgül M.B.; Kirişken B.; Akiş A.A.
    Audiovisual feedback generally is used on touch screens on portable electronic devices, which are frequently used in daily life. Tactile feedback is one of the issues that have recently gained importance in this technology. Tactile feedback occurs by stimulating the nerves at the fingertip by moving the touch screen. In this study, we have determined the vibration characteristics of touchscreens made from different materials used in the sector. The finite element method is employed to obtain the vibration modes of the screen. In addition to, the effects of the materials of piezo, applied voltage, the number of the piezo patches are investigated to produce the best vibration function and graphically are presented. © 2017 IEEE.