Elo TouchSystems AccuTouch 821615-000, Руководство по эксплуатации продукта

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C-90
I n t e l l i T o u c h / S e c u r e T o u c h G u i d e
Positional Accuracy
For all flat screens up to 18 inches in diagonal, standard deviation of error is less
than 0.080 inches (2.032 mm). The maximum error is 0.180 inches (4.572mm)
in either axis. For flat screens larger than 18 inches in diagonal, the maximum
error is 1% of the diagonal of the active area. Detected touch coordinates, after
being mathematically fitted to actual touch coordinate patterns, shall not have a
standard deviation of errors in excess of 0.080 inches in either axis. (Positional
accuracy shall be reported in terms of the standard deviation for both the X and
Y axis using Elo Test Software as the data collection and calculations tool.)
TouchPoint Density
TouchPoint Density is based on controller resolution of 4096x4096. This
equates to more than 100,000 touchpoints/in
2
(15,500 touchpoints/cm
2
) for a
typical touchscreen when used with Elo controllers.
Touch Activation Force
When activated by a Standard Finger (Per Elo Document SD000444), the
activating force is typically less than 4 ounces (113 grams).
Hardcoat Pencil Hardness
Meets pencil hardness 3H per ASTM D 3363.
Abrasion Test
Meets Taber Abrasion Test (ASTM D 1044), CS-10F wheel, 500 grams.
Expected Life Performance
AccuTouch technology has been operationally tested too greater than 35 million
touches in one location without failure, with a stylus similar to a finger.
MTBF Calculations
AccuTouch touchscreens have a calculated MTBF of over 490,000 hours based
on returns data and hours of usage. See method below:
The current probability of survival is 0.989 (definition of reliability, R)