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Oscilloscope Mode (cont'd)
Measurement
conditions
Automatic
measurement
presentation
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IV - 86
The measurements are performed on the displayed part of the trace.
•
Any change to the signal will lead to updating of the measurements.
•
They are refreshed in step with acquisition.
To perform automatic measurements on specific portions of the signal,
•
frame the required measurement area with the manual cursors so
that the markers show the new location of the automatic measurement.
Measurement precision is optimum if two complete signal periods are
•
displayed.
100%
90%
>5%T
Vavg
avg
50%
10%
0%
Trise
Trise
t1
t0
t2
• Positive overshoot = [100 * (Vmax – Vhigh)] / Vamp
• Negative overshoot = [100 * (Vmin – Vlow)] / Vamp
• Vrms =
• Vavg =
• Vsum =
Y
= value of the point representing zero volt
GND
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Oscilloscope Mode - The "Measure" Menu
T = 1/F
P
W+
W-
W
Tfall
Tfall
t4
t3
t5
i n
=
1
∑
[
(y
−
y
i
n
i 0
=
i n
=
1
∑
(y
−
y
i
GND
n
i 0
=
i
=
n
∑
(y
)
×
δ
t
i
i
=
0
.com
W
Vmax
Vhigh
high
Vamp Vpp
Vlow
low
Vmin
>5%T
t6
2 1/2
) ]
GND
)
1.877.766.5412
SCOPIX
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