Sensorli ekranlar yordamida foydalanuvchi ma’lumotlarini qabul qilish Bajardi: Bobojonov sh


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Narx №1 bo'lgan joyda
O'z-o'zidan sig'im:
Ushbu amalga oshirishda elektronika har bir elektroddagi oqimni erga o'lchaydi va shuning uchun "o'z-o'zidan sig'im" deb ataladi.
Supero'tkazuvchilarning satrlari va ustunlari panjara shaklida joylashtirilgan: Har bir satr va har bir ustun uchun bitta kondansatör.
Ko'p teginish arvoh pozitsiyalariga sabab bo'lganda, o'z-o'zini sig'im bilan bog'liq muammo.
Prognoz qilingan sig'im: sig'im
  • Contruction: Mutual capacitance is the latest addition of capacitive sensing techniques. Such capacitive panels have two conductive layers stacked together with a very thin separation.
  • Sensing method: In this implementation, mutual capacitance are created between elements of columns and rows in the vicinity where each intersect the other. This allows the system electronics to measure each node (intersection) individually to detect multiple touches on the screen during one screen scan.
    • When a finger touches near an intersection, the mutual capacitance Cx between the row and column is coupled to the finger capacitance Cf (Cx in series with Cf) which reduces the capacitance at the intersection as measured by the system electronics. This reduced capacitance crosses the "touch threshold" set by the electronics indicating a touch has occurred. This reduction in capacitance is used to identify the presence of a finger.
    • Since every intersection has its own mutual capacitance and can be independently tracked, this method provides a distinct advantage for detecting multiple fingers.

2. Projected Capacitance: Mutual Capacitance

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