Chapter 3
89
VEE Measurement Program Operation
Measurement
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1.
Click on [Narrow Band TAA] to open the Narrow Band TAA menu.
Figure 3-42
[Narrow Band TAA] Menu
NOTE
For Stability measurement of Narrow Band TAA, tracks are unsectored.
2. Set the parameters, click on each button to enter a new value.
Skip Erase & Write
Selects the type of measurement sequence.
Erease and write sequences are not done when
this is checked.
Channel Bit Rate
Specifies the speed at which data bits are
written on the media per second [bps].
Write Current
Specifies the current applied to the write head.
Sense Current
Specifies the current applied to the read head.
Data Pattern
Specifies the data pattern to be written on the
test track. To set the data pattern, click on the
[Configuration] > [Setup] > [Pattern Config]
buttons to open the data pattern menu.
# of Counts
Specifies the number of measurement counts.
where, count = revolution x segment
Track#
Specifies the track number to be tested.
Write Time
Specifies the time to write the data. Minimum
value is 1[
µ
sec] and maximum value is
10[msec]. Refer to
“hpe5022_measureAbsStability” function of
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