发明名称 |
Contact inspection device, and contact inspection device and method for magnetic disk device |
摘要 |
A contact inspection method and device in which a detection element which produces a detection output according to vibration of a rotating body is mounted on the rotating body to detect contact of an object with the rotating body, more particularly a method and device suitable for evaluating mechanical characteristics of a rotating magnetic disk (1) and a slider (2) in a magnetic disk device are provided. A detection element (12) which produces a detection output according to vibration is mounted on a rotating body (1). The detection output is transmitted to a stationary portion through a rotary transformer (33h). The rotating body (1) rotates based on the transmitted detection output. The rotary transformer has a sufficient impedance with which the detection element obtains a predetermined output in a portion of an effective sensitivity band of the detection element.
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申请公布号 |
US7591180(B2) |
申请公布日期 |
2009.09.22 |
申请号 |
US20040578511 |
申请日期 |
2004.10.27 |
申请人 |
PANASONIC CORPORATION |
发明人 |
NAKAKITA MASARU |
分类号 |
G01N29/07;G11B5/455;G11B21/21 |
主分类号 |
G01N29/07 |
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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