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Reviewing Data
Measuring Time
Differences in the
SoundTrak Data
(continued)
Differential Time cursors are
single value cursors which
measure the time difference
between any two points in the
SoundTrak display. This method
is very useful when making time
delay measurements.
Setting Differential Time
Cursors
The SoundTrak Differential Time
cursors may be set by:
1. Clicking on the first of two
points you want to measure
and then holding down the Left
mouse button (Figure 1).
Click and drag to create a box
SoundTrak 2200 - 2300 msec
75
50
Sin 1A
25
0
-25
Cos 1A
-50
-75
75
50
0
-25
Cos 1B
-50
-75
2220
2280
msec
Figure 1: SoundTrak Display - Setting a Differential Time Cursor.
75
2. Dragging the mouse until the
highlighted box is over the
second point and then releasing
the mouse button (Figure 1).
Sin 1B
25
SoundTrak 2200 - 2300 msec
18 ms
50
Sin 1A
25
0
-25
Cos 1A
An H-Bar' appears between the
two points and the differential
time value is displayed (Figure 2).
-50
-75
75
Saving Differential Time
Cursors
The SoundTrak Differential Time
Cursors may be saved by simply
resaving the spectral record.
50
Sin 1B
25
0
-25
Cos 1B
-50
-75
2220
2280
msec
Figure 2: SoundTrak Display - Differential Time Cursor.
S8-37