HP 3336A - Page 123

Performance Tests Model 3336A/B/C
d. Set the system voltmeter delay to each of the following times (xp). For each delay time,
record the voltage reading (yn) in column C of the work sheet at the end of this procedure
and on the Performance Test Record in the ‘‘Measured Results’? column. In both places,
record this voltage to 2 decimal places.
xo = .O0I1s x3 = .004s x6 = .007s
xj = .002s x4 = .005s x7 = .008s
x2 = .003s x5 = .006s xg = .009s
e. Total all the entries in column ‘‘C’’.
f. Multiply the corresponding entries in column ‘‘A”’ and column ‘‘C’’ together and enter
the results to 5 decimal points in column ‘‘D’’.
g. Total all the entries in column ‘‘D’’.
h. The general equations to find the slope and y intercept for a ‘‘best fit straight line’’ are
rather involved, however, in this particular procedure, they reduce to:
= .527778C — 83.333D m = 16,667D — 83.333C
i. Using the values for C and D from the work sheet and the formula from the previous
step, compute values for m and b.
j. Using the formula y = mx + b, with the specific values m and b just found, compute a
value y for each x recorded in column ‘‘A’’. Enter the results in the ‘‘Specification’’ column
on the Performance Test Record.
k. In order for the 3336 to pass this performance test, the ‘‘Measured Results’? must
equal the corresponding ‘‘Specification’’, plus or minus the ‘‘Tolerance’’.
SYSTEM VOLTMETER
ee) ee) eee ee tout ot
4si4tjItJ
Se ed ear re pa
ot ed a cd
BNC TO TRIAX
ADAPTER
Figure
4-13.
X-Drive
Linearity
Performance
Test
Equipment
Set
Up.
4-38