118
Math Function Operation
The oscilloscope can also calculate the signal’s derivative (d/dt), integral (
∫
dt) and square root (
).
Differentiate
d/dt
(differentiate) calculates the discrete time derivative (slope) of the selected source.
di =
y (i+dx) – y(i)
dx
Where:
l
d = differential waveform
l
y = voltage value of data point
l
i = data point index
l
dx = point-to-point time difference
The
dx
option under d/dt math function operation menu indicates the number of data points to take
the difference over. The minimum value is 4, and the unit is points.
Figure 73 Square Wave and Derivative
You can use d/dt to measure the instantaneous slope of a waveform. For example, the slew rate of an
operational amplifier may be measured using the d/dt function
Note
: Because d/dt is very sensitive to noise, it is helpful to set acquisition
mode to Average.
Summary of Contents for OSC-9200
Page 1: ...AEGIS Shaft Voltage Tester Handheld Digital Oscilloscope AEGIS OSC 9200...
Page 18: ...3 Appearance and Dimensions mm Figure 1 Front View Figure 2 Side view...
Page 44: ...29 Horizontal Control Contents u Horizontal Scale u Horizontal Delay u Roll Mode u Zoom Mode...
Page 56: ...41 Figure 16 x Interpolation Figure 17 Sinx x Interpolation...
Page 60: ...45 Figure 21 With Random Noise Normal Mode Figure 22 With Random Noise Average Mode...
Page 105: ...90...
Page 135: ...120 Figure 75 Integral with Offset...
Page 139: ...124 Figure 77 Measure Pulse Width...
Page 190: ...175 DC Current Measurement AC Current Measurement...
