AEMC OX7102-CII, User Manual

Page: 79 / 208

Oscilloscope Mode - The "Measure" Menu
SCOPIX Oscilloscopes IV - 79
Oscilloscope Mode (cont'd)
Measurement
conditions
•
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.
Automatic
measurement
presentation
T = 1/F
W+ W-
Vmax
Vhigh
Vlow
Vamp Vpp
>5%T
Trise
Tfall
0%
10%
50%
90%
100%
>5%T
Vmin
t0
t1
t2 t3
t4
t5
t6
Vavg
•
Positive overshoot = [100 * (Vmax – Vhigh)] / Vamp
•
Negative overshoot = [100 * (Vmin – Vlow)] / Vamp
•
Vrms =
[ (y y ) ]
1
n
i
i 0
i n
GND
2 1/2
=
=
∑
−
•
Vavg =
1
n
(y y )
i
i 0
i n
GND
=
=
∑
−
•
Vsum =
∑
=
=
δ ×
n i
0 i
) (y
t
i
Y
GND
= value of the point representing zero volt
low
high
P
avg
W W
Trise
Tfall