Agilent Technologies 6000 Series manual Integrate

Making Measurements 5

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:

n

In = co + ∆ t ∑ yi

i=0

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 co = arbitrary constant

i = data point index

In Zoom mode, the ∫ dt function does not display in the zoomed portion of the display.

1Press 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.

•Offset — lets you set your own offset for the ∫ Vdt math function. The offset value is in unit-seconds where units can be V (Volts), A (Amps), or W (Watts) and is represented by the center horizontal grid line of the

display. Press the Offset softkey, then turn the Entry knob to change the offset for ∫ dt. The integrate calculation is

relative to the source signal’s offset. The following examples illustrate the effects of signal offset.

6000 Series Oscilloscope User’s Guide 221