Agilent Technologies E5022A Operation Manual page 286

Hard disk read/write test system
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Figure 5-37
Write Head Width Definition
The output signal remains constant until the center of the head offsets from the center of
the test track by 1/2 (Write
misregistration of this magnitude, also called "guard bands". In practice, in general it is the
irregular output of the track profile that gives the most useful information, for this helps the
user to evaluate the performance of the read head.
As shown in Figure 5-37. Linear interpolation is applied at each point to determine the
Track Profile.
Figure 5-38
Read-Write Offset Definition
Read-write offset is defined as the distance between the center of the track profile's track
Chapter 5
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Parametric Sweep Measurement Definitions
- Read
), this serves as protection against any track
width
width
Measurement Definition
285

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