Agilent Technologies 3000 X-Series Instrukcja Obsługi Pobierz pdf (Strona 74)

3Capturing Data

74 Agilent 3000 Series Oscilloscopes User’s Guide

To select the Average acquisition mode:

1 Press Acquire

2 In the Acquire menu, press Acquisition until “Average” is selected.

3 Press Averages to select the desired number (2, 4, 8, 16, 32, 64, 128, or

256).

To select the Peak Detect acquisition mode

In Normal or Average acquisition modes, at longer horizontal time/div

settings, the oscilloscope’s analog- to- digital converter samples at a rate

that yields more samples than can be stored in a limited amount of

oscilloscope memory. Consequently, samples are thrown away (decimated),

and you can miss narrow excursions on a signal.

However, in the Peak Detect acquisition mode, acquisitions are made at

the fastest sample rate, and the minimum and maximum values for the

period associated with the actual sample rate are stored. This way, you

can capture narrow excursions on a signal at longer horizontal time/div

settings.

Figure 35 Peak Detect Waveform

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 155 156

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