A&D Series 57ZZ Manual de usuario descargar pdf (Pagina 28)

Stopping and Starting the Acquisition System

One of the greatest advantages of digitizing oscillo-

scopes is their ability to store waveforms for later

viewing. To this end, there are usually one or more

buttons on the front panel that allow you to stop and

start the acquisition system so you can analyze

waveforms at your leisure. Additionally, you may

want the oscilloscope to automatically stop

acquiring after one acquisition is complete or after

one set of records has been turned into an envelope

or average waveform. This feature is commonly

called single sweep or single sequence and its

controls are usually found either with the other

acquisition controls or with the trigger controls.

Sampling Methods

In digitizing oscilloscopes that can use either real-

time sampling or equivalent-time sampling as

described earlier, the acquisition controls will allow

you to choose which one to use for acquiring signals.

Note that this choice makes no difference for slow

time base settings and only has an effect when the

ADC cannot sample fast enough to fill the record

with waveform points in one pass.

Other Controls

So far, we have described the basic controls that a

beginner needs to know about. Your oscilloscope

may have other controls for various functions. Some

of these may include:

• Measurement cursors

• Keypads for mathematical operations or data

entry

• Printing capabilities

• Interfaces for connecting your oscilloscope to a

computer

Look over the other options available to you and

read your oscilloscope’s manual to find out more

about these other controls.

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A&D Series 57ZZ Manual de usuario Pagina 28