Invention Application
WO2011155903A1 METHOD AND APPARATUS FOR DETERMINING THERMAL MAGNETIC PROPERTIES OF MAGNETIC MEDIA
审中-公开
用于确定磁性介质的热磁特性的方法和装置
- Patent Title: METHOD AND APPARATUS FOR DETERMINING THERMAL MAGNETIC PROPERTIES OF MAGNETIC MEDIA
- Patent Title (中): 用于确定磁性介质的热磁特性的方法和装置
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Application No.: PCT/SG2011/000209Application Date: 2011-06-13
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Publication No.: WO2011155903A1Publication Date: 2011-12-15
- Inventor: AN, Chengwu , YE, Kaidong , XIE, Qiong , SONG, Wendong , TIAW, Kay Siang
- Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH , AN, Chengwu , YE, Kaidong , XIE, Qiong , SONG, Wendong , TIAW, Kay Siang
- Applicant Address: 1 Fusionopolis Way #20-10, Connexis Singapore 138632 SG
- Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH,AN, Chengwu,YE, Kaidong,XIE, Qiong,SONG, Wendong,TIAW, Kay Siang
- Current Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH,AN, Chengwu,YE, Kaidong,XIE, Qiong,SONG, Wendong,TIAW, Kay Siang
- Current Assignee Address: 1 Fusionopolis Way #20-10, Connexis Singapore 138632 SG
- Agency: YU SARN AUDREY & PARTNERS
- Priority: US61/353,902 20100611
- Main IPC: G01R33/032
- IPC: G01R33/032 ; G01J4/04 ; G01R33/12
Abstract:
An apparatus and method of testing a magnetic medium at temperatures of interest is disclosed. Properties of the magnetic medium are determined by focusing light from a source of polarized light on a magnetic surface of the magnetic medium; measuring polarization of resulting reflected light due to the magneto-optical Kerr effect, using, for example a measuring subsystem; and varying the light source to heat the magnetic material where incident to pre-defined temperatures, thereby allowing determination of the magnetic properties using the magneto-optical Kerr effect at said pre-defined temperatures.
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