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Using the Oscilloscope

Graphical User Interface

3-24

The graphical interface is arranged so that the most common functions affecting the

waveform display are located around the edge of the waveform viewing area. These

include the measurement toolbar, horizontal and trigger toolbar, and vertical toolbar.

Measurement Toolbar

The measurement toolbar contains icons representing the most commonly used

automatic measurements built into the oscilloscope.

Drag and Drop Measurements By dragging one of the measurement icons to

a waveform in the waveform display area, you can make that measurement on

the waveform. As you drag a measurement icon around the screen, the icon

outline changes color to match the color of the closest waveform. This makes it

easy to see which waveform will be measured when you drop the icon. For those

measurements that are done on waveform features, the measurement is made at

the feature closest to the location where you dropped the icon. For example, you

might want to measure the rise time of the fifth rising edge; dropping the rise

time measurement icon at that edge will cause the measurement to be made on

that edge.

You can also make a measurement by simply clicking the icon on the measurement

toolbar, then selecting the source to be measured in the dialog box that appears. When

you start a measurement this way, any measurements on waveform-specific features

will measure the feature closest to the horizontal reference indicator.

Each waveform can have multiple simultaneous measurements and the measurements

can all be of the same type, if desired. For example, you can have 3 pulse width

measurements on different parts of the same waveform.

Geometric Measurement Indicators For each measurement currently

running, a geometric indicator at the measurement location on the waveform

corresponds to an identical indicator in the measurement results readout. This

makes it easy for you to verify that the readout shows results for the correct

waveform and the correct feature on that waveform. See figure 3-25 for an

example.

Tool Tips To find out what a particular measurement tool does, move the mouse

pointer over it for a moment. A small popup will appear that describes the

measurement.

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Agilent Technologies Ininiium 9000 Guida Utente Pagina 60