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SIGLENT
114 SDS2000X User Manual
Note: Because differentiation is very sensitive to noise, it is helpful to set acquisition
mode to Average.
Math Function Operation
SDS2000X supports math function operation including differential (d/dt), integral (∫dt) and
square root (√).
Differentiate
d/dt (differentiate) calculates the discrete time derivative of the selected source.
Where:
d = differential waveform.
y = channel 1, 2, 3, or 4 data points.
i = data point index
Δ t =point-to-point time difference.
The dx option under d/dt math function operation menu shows the point-to-point time
difference, and it ranges from 0.02div to 0.40div. ―div‖ indicates the number of the pixel
points that each division has. SDS2000X has 50 pixel points per division. Take 0.2div as
an example: 0.2*50=10. It means to calculate the ten point‘s discrete time derivative of the
selected source, and the Δ t is the ten point‘s point-to-point time difference.
Figure 65: Differential Function Operation
You can use the differentiate function to measure the instantaneous slope of a waveform.
For example, the slew rate of an operational amplifier may be measured using the
differentiate function
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