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Model 3314A
L. Determine the value of m using the following
equation:
ы
Уху ~ ХхБу/п
Ex? — (ExY/n
where Хх, Ly, Хху, ExEy, Ex?, and (Xx) are the
previously calculated values entered on the performance
test record, and n =
9 (the number of points to be
calculated).
M. Determine the value of b using the equation:
b = Ly/n — m&x/n
N. Calculate the "'best fit straight line" value for yg
through yo using the equation:
y = mx + b
Enter each result on the Performance Test Record in the
"Best Fit Straight Line" column.
O. Algebraically. add the voltages recorded
in the
"Negative Slope Measurement'' column and enter the
total in the "Ey" space.
P. Repeat steps I through N to determine the ''best
fit straight line" values for the negative slope.
4-B. Start/Stop PHASE ACCURACY
This test determines the Start/Stop phase accuracy of
the N Cycle mode on the 3314A.
Performance Tests
Specification:
+3°
Equipment Required:
High Speed Digital Voltmeter
50 Ohm Feedthrough Termination
Triax to BNC Connector
Procedures:
A. Preset the 3314A.
B. Set the 3314A as follows:
КИНСНӘН SA са
oe
petita
P
ee Triangle
Amplitude
..........................
10Vp-p
Моде usos atu
y vdd
фи dor
ke reeds N Cycle
ево
ем
ин
а
evens Negative Edge
C. Set the Digital Voltmeter as follows:
Kange cdi
лао
зын
Pod uada ace how 10V
РНС
I iran
wale
enced
ОСЫ
E
e
Ext
ЕЕРЕЕ
1
Delay
aus
osos am ERAN
ants pi ЛАГЫ» 0.00025s
D. Connect the 3314A to the Digital Voltmeter as
shown in Figure 4-6.
E. Record
the voltage
reading
displayed
on
the
Digital Voltmeter.
F. Set the delay on the Voltmeter to 0.00075s, and
record the voltage reading.
HIGH SPEED
DIGITAL VOLTMETER
BNC TO TRIAX
ADAPTER
FEEDTHRU
TERMINA TION
Figure 4-6. Start/Stop Phase Accuracy
4-7
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