PRE-09 ACCURATE RUNOUT MEASUREMENT FOR HDDS(MM/Micro/Nano Precision Equipments III,Technical Program of Oral Presentations)

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概要

• 論文の詳細を見る

• This paper introduces a new system to precisely measure the runout of HDD spinning disks and motors through synchronously acquiring the rotor position signal and the displacements in the axial or radial direction. In order to minimize the synchronizing error between the rotor position and the displacement signal, a high resolution counter is adopted instead of the conventional phase-lock loop. With Laser Doppler Vibrometer (LDV) and proper signal processing, the proposed runout system can precisely measure the runout of the HDD spinning disks and motors with 1 nm resolution and 0.2% accuracy with a proper sampling rate. It provides an effective and accurate approach to measure the runout of high areal density HDDs.

• 一般社団法人日本機械学会の論文
• 2009-06-17

著者

• Lin Song

  A *star Data Storage Institute

• Jiang Quan

  A *star Data Storage Institute

• BI Chao

  A *Star Data Storage Institute

関連論文

• PRE-09 ACCURATE RUNOUT MEASUREMENT FOR HDDS(MM/Micro/Nano Precision Equipments III,Technical Program of Oral Presentations)

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