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DCR Measurement
Overview
This section describes the dc resistance measurement of the head. When this measurement
is performed, the head is unloaded and the spindle stops rotating.
Measurement
1. To open the DCR menu, click [DCR] button from the "Others" frame of the Measure
Procedure
menu.
Figure 3-114
DCR Menu
2. Click [Sense Bias] or [Write Current] button to set.
3. Click [Reference Read DCR] button (for voltage bias) to specify the DC resistance of
the MR head. This value is required when the current bias type in the setup menu is set
at the voltage. When Auto-program is checked, the measured read DC resistance is set
automatically.
4. Click [Reference Write DCR] button (for write current) to specify the DC resistance of
the write head. When Auto-program is checked, the measured write DC resistance is
set automatically.
5. Click [Measure Read Head DCR] button to measure DC resistance of the MR head.
6. Click [Measure Write Head DCR] button to measure DC resistance of the write head.
7. Click [Return] to return to Measure menu.
Chapter 3
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VEE Measurement Program Operation
Measurement
191
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