Making Measurements
5
6000 Series Oscilloscope User’s Guide
211
Differentiate
d/dt
(differentiate) calculates the discrete time derivative of
the selected source. You can use differentiate to measure the
instantaneous slope of a waveform. For example, the slew
rate of an operational amplifier may be measured using the
differentiate function.
Because differentiation is very sensitive to noise, it is helpful
to set acquisition mode to
Averaging
in the
Acquire
menu.
d/dt
plots the derivative of the selected source using the
“average slope estimate at 4 points” formula. The equation
is:
Where
d = differential waveform
y = channel 1, 2, or function 1 + 2, 1 – 2, and 1 * 2 data
points
i = data point index
∆
t = point-to-point time difference
In Delayed sweep horizontal mode, the d
/
dt function does
not display in the delayed portion of the display.
1
Press the
Math
key, press the
d/dt
softkey, then press the
Source
,
Scale
, or
Offset
sofkeys if you want to change the
source, scaling, or offset for the differentiate function.
•
Source
— selects the source for d/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
d/dt expressed in units/second/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 d/dt.
d
i
= y
i+4
+ 2y
i+2
– 2y
i-2
– y
i-4
8
∆
t
Summary of Contents for InfiniiVision DSO6014L
Page 2: ...Agilent Technologies Agilent 6000 Series Oscilloscopes User s Guide...
Page 59: ...58 6000 Series Oscilloscope User s Guide 1 Getting Started...
Page 109: ...108 6000 Series Oscilloscope User s Guide 2 Front Panel Controls...
Page 125: ...124 6000 Series Oscilloscope User s Guide 3 Viewing and Measuring Digital Signals...
Page 251: ...250 6000 Series Oscilloscope User s Guide 5 Making Measurements...
Page 287: ...286 6000 Series Oscilloscope User s Guide 6 Displaying Data Interpreting Decoded LIN Data...
Page 321: ...320 6000 Series Oscilloscope User s Guide 7 Saving and Printing Data...
Page 370: ......
