Measuring and testing – Vibration – Sensing apparatus
Patent
1999-01-05
2000-08-22
Kwok, Helen C.
Measuring and testing
Vibration
Sensing apparatus
324212, 360103, G01H 1100, G01R 3312
Patent
active
061054321
ABSTRACT:
The contact tester of the present invention includes: a holding mechanism for holding a disk and rotating integrally with the disk, an arm driving for driving an arm which supports a slider, the slider is provided with a head for recording/reproducing information on/from the disk. In addition, a first vibration detection element for detecting contact between the slider and the disk is provided. Furthermore, a signal transmission for transmitting an output signal of the first vibration detection element and a signal analysis for analyzing the output signal transmitted via the signal transmission are provided, where the first vibration detection element is mounted at a position where a vibration of the arm is not detected.
REFERENCES:
patent: 5038625 (1991-08-01), Chen
patent: 5545989 (1996-08-01), Tian et al.
patent: 5625514 (1997-04-01), Kubo et al.
patent: 5792947 (1998-08-01), Pogrebinsky et al.
patent: 5880587 (1999-03-01), Annis et al.
Matsuoka Kaoru
Nakakita Masaru
Taniguchi Koji
Ueno Yoshihiro
Kwok Helen C.
Matsushita Electric - Industrial Co., Ltd.
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