Making Measurements 5
6000 Series Oscilloscope User’s Guide 213
Integrate
∫ dt (integrate) calculates the integral of the selected source.
You can use integrate to calculate the energy of a pulse in
volt-seconds or measure the area under a waveform.
∫ dt plots the integral of the source using the “Trapezoidal
Rule”. The equation is:
Where
I = integrated waveform
∆t = point-to-point time difference
y = channel 1, 2, or function 1 + 2, 1 – 2, and 1 * 2 data
points
c
o
= arbitrary constant
i = data point index
In Delayed sweep horizontal mode, the ∫ dt function does not
display in the delayed portion of the display.
1 Press the Math key, press the ∫ dt softkey, then press the
Source, Scale, or Offset sofkeys if you want to change the
source, scaling, or offset for the integrate function.
• Source — selects the source for ∫ dt. The source can be
any analog channel, or math functions 1 + 2, 1 – 2,
and 1 * 2.
• Scale — lets you set your own vertical scale factors for
∫ dt expressed in unit-seconds/division, where units can
be V (Volts), A (Amps), or W (Watts). Units are set in
the channel Probe menu. Press the Scale softkey, then
turn the Entry knob to rescale ∫ dt.
n
I
n
= c
o
+ ∆t ∑ y
i
i=0
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