Agilent Technologies E5035A Operation Manual page 81

Hard disk read/write test system
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VEE Measurement Program Operation
Measurement
4. Click on the [Write Config] button, to set the stimulus write pattern of the stability
Figure 3-34
Stability Write Configuration Menu
NOTE
If the attached head amplifier does not support "continuous" write current function, a
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Read Ratio
Curr. Mode
measurement.
In order to effectively use the write mode "continuous" you must set the repetitive
period of the selected data pattern to 1T, 2T, 4T and/or 8T in the [Pattern Config] menu.
Refer to the "hpe5022_stabilityWriteModeConfig" function of the programming
manual for details.
Specifies the read aperture ratio relative to its
corresponding sector (segment). See "Stability
Measurement" on page 248.
Specifies the current polarity. When "Normal
Mode" is selected, write current polarity is the
same as read current polarity. If "Reverse
Mode" is selected, the read current polarity is
opposite to the write current polarity. Some
head amplifier does not support the reverse
and/or off functions. This setting is used for
only the stability measurement. The other
measurements use the setting of Sense Curr.
Mode under the setup menu for the current
polarity. See Figure 3-10 on page 53.
Chapter 3

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