发明名称 |
METHOD OF TESTING MAGNETIC RECORDING MEDIUM |
摘要 |
Disclosed is a method of testing a magnetic recording medium including a magnetically isolated magnetic recording pattern (41a) on a non-magnetic substrate. The method includes: a first signal writing step of writing a first signal (6) with a width less than a track width at a plurality of measurement positions (5) on the magnetic recording pattern (41a) using a writing head; a first signal reading step of reading the first signal (6) using the reading head to obtain a plurality of first read signals corresponding to the measurement positions (5); and an analysis step of analyzing magnetic characteristics of the magnetic recording pattern (41a) using the plurality of first read signals obtained in the first signal reading step. The test method is suitable for testing the magnetic characteristic distribution of a discrete track medium and is capable of testing the magnetic characteristic distribution of a magnetic recording medium with high accuracy.
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申请公布号 |
US2012206829(A1) |
申请公布日期 |
2012.08.16 |
申请号 |
US201013502828 |
申请日期 |
2010.10.21 |
申请人 |
HATADA SHUJI;SHOWA DENKO K.K. |
发明人 |
HATADA SHUJI |
分类号 |
G11B27/36;C23C14/34;G11B5/851 |
主分类号 |
G11B27/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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