Keysight InfiniiVision HD3 Series - Page 85

Math Waveforms 5
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 85
You can use integrate to calculate the energy of a pulse in volt-seconds or
measure the area under a waveform by measuring the difference in the integrate
function value across the pulse or 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, 3, 4, or Math 1, Math 2, Math 3 (lower math function) data
points.
• c
o
= arbitrary constant.
• i = data point index.
The integrate operator provides an Offset field that lets you enter a DC offset
correction factor for the input signal. Small DC offset in the integrate function
input (or even small oscilloscope calibration errors) can cause the integrate
function output to "ramp" up or down. This DC offset correction lets you level the
integrate waveform.
Figure 12 Integrate Without Signal Offset
I
n
= c
o
+ Δ t
∑
i=0
n
y
i
0 V level
Integrate
without
DC offset
correction