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11. First determine the value of al using the following
equation:
where Cx, Cy, Cxy, CxCy, ,Xx2, and (CX)~, are
the previously calculated values entered on the
Performance Test Record.
where n=9 (the number of points to be calculated).
12. Determine the value of ac using the equation:
n
n
13. Calculate the best fit straight line value for each
point (yr through ys) using the equation:
y = UlX = a0
Enter each result on the Performance Test Record in
Best Fit Straight Line
the
14. For each delay (x), subtract the calculated voltage
(y') from the measured voltage (y). Find the largest
positive voltage difference (+V,,) and the largest
negative difference (-V,,,). Using the following
formula, compute the % linearity.
% linearity = ((ItV,,,( + I-V,,,/) + 8 volts) x
100%
15. Algebraicaly
add the voltages recorded in the
Negative Slope Measurement column and enter the
total in the Cy space.
column.
Performance Tests 12-37
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