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Offset Range
Offset NOP
Offset Step
Meas. Type
NOTE
To set the erase type (DC+ / DC- / AC), click on [More Config.], to open the setup menu
and select the type in the [Erase Type] parameter.
3. The [More Config.], [Pattern Config], [Register Config.]and [BER Config.] buttons are
added for additional configurations. Click on any of these buttons to set a new
parameter value as required by measurement applications. The [BER Config.] menu
have the same setting and format as the [Configuration] of the BER Main menu.
4. Click on the [Measure] button to start measurement.
Measurement
The upper left side of the menu shows the measured off-track capability OTC. The
Display
graph on the other hand shows the bathtub characteristic curve of the track profile.
OTC Pos. represents the affordable off-track from the Read/Write offset to the right
side of the curve. And OTC Neg. represents the affordable off-track from the
Read/Write offset to the left side of the curve. OTC represents the total affordable
off-track.
Definition' Chapter 5 of the operation manual.
Chapter 3
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An explanation of the bath tub characteristic curve is explained in the 'Measurement
VEE Measurement Program Operation
Specifies the range of the track offset sweep.
The maximum range is 6[µm]. Refer to the
'hpe5022_measureTrackProfile' of the
programming manual for details.
Specifies the number of offset points to build
the bath tub curve. The offset NOP range can
be set from 1 (min). to 201 (max).
Specifies the step by which the head is moved
to build the bath tub curve. This parameter is
computed and updated automatically when
[Offset Range] and [Offset NOP] parameters
are specified.
Specifies the type of measurement sequence.
1)[Erase Write Meas.] means to erase, write
data then measure. 2)[Write Meas.] means to
write data, then measure. 3) [Meas.] means to
measure only.
Measurement
185
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