Fluke ScopeMeter 192C, Руководство по началу работы, Страница: 15 / 18

Getting Started
Making Cursor Measurements
11
Making Cursor Measurements
Cursors allow you to make precise digital measurements
on live, on recorded, and on saved waveforms.
Display the
CURSOR
key labels.
Select cursor measurement type:
measure signal height at one point of time.
measure signal height difference of two
points of time, and measure the time or the
trace RMS value between the cursors.
measure signal height at the cursor
positions and between cursor positions.
measure rise time and fall time.
Select the cursor to be moved. Use the blue
arrow keys to move.
Depending on cursor measurement type:
Automatic or manual risetime measurement
on a single channel.
Reading 2 is time (
T
), frequency (
1/T
) , or
RMS
value.
Cursor measurements on trace
A
,
B
or
M
if A
and B are on; M if
Mathematics
... is on, see
ScopeReadings and Waveforms on page 6.
OFF
: Switch cursor measurements off.
Triggering
Triggering tells the test tool when to begin displaying the
waveform.
Automatic triggering assures a stable display of virtually
any signal:
Perform an auto set.
AUTO
appears at the
top right of the screen. Input A is the default
trigger source.
Now you can take over basic trigger controls such as
source, level, slope and delay:
Display the trigger key labels
A B
: trigger on input A or B waveform
Ext
: trigger on the meter-input signal.
Select the trigger slope.