Measure
TDS3000B Serie s User Manual
3-41
Key Points
Choosing Measurements. You can perform up to four automatic
measurements and display them a long the right side of the graticule.
All four measurements can apply to a single channel or you can
spread the measurements over several channels. You can also take
measurements on math and reference waveforms.
First push a channel, MATH, or REF button to select the waveform
you want to measure and then select a measurement. The table
beginning on page 3--44 describes the measurements in detail.
Measurement Interaction with Preview. If you change a vertic al or
horizontal control setting while acquisition is stopped or is waiting
for trigger, m easurements trac k the changes and remai n val id.
Taking Gray-Scale Measurements. Using cursors is often the best way to
take simple mea surements on waveforms that contain significant
gray-scale information. The automatic measurem ents operate only
on the lat est acquisition, not on the previous acquisitions tha t a re
displayed in gray scale. However, you can set the cursors to surround
and measure the gray-scale area of the waveform.