Elo TouchSystems AccuTouch 821615-000, Руководство по эксплуатации продукта

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E l o E n t u i t i v e T o u c h m o n i t o r
The AccuTouch Touchscreen
The AccuTouch resistive touchscreen consists of a glass panel molded to the
precise shape of a display's face. A scratch-resistant, hard-coated plastic cover
sheet is suspended over the surface of the glass by less than one-thousandth of
an inch with tiny separator dots. The cover sheet may be clear for best image
clarity or have an antiglare finish. For optimum optical performance, the
touchscreen may be optically bonded to the cathode ray tube (CRT) face. See
figure 2-1 for details on the construction of an AccuTouch touchscreen.
The glass is coated with a transparent uniform resistive coating, and the cover
sheet has a conductive coating. With a light touch on the cover sheet, the
conductive inner surface of the plastic makes contact with the resistive coating
on the glass. There is an electrical drive connection to each of the four corners
of the resistive coating, and a pickup connection to the coating on the cover
sheet. When the proper DC voltages are applied to the drive connections, the
voltage at the pickup connection is proportional to the position of the touch.
Refer to the Elo web site, www.elotouch.com, for more information on how the
AccuTouch resistive touchscreen operates.
Figure 2.1 AccuTouch Touchscreen