Novel method for disk run-out testing

Jun Huang; Xiandeng Pei; Changsheng Xie; Benxi Liu

doi:10.1117/12.332471

8 December 1998 Novel method for disk run-out testing

Jun Huang, Xiandeng Pei, Changsheng Xie, Benxi Liu

Proceedings Volume 3430, Novel Optical Systems and Large-Aperture Imaging; (1998) https://doi.org/10.1117/12.332471
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

We raised a novel method to test radial run-out of optical disc. The method measures run-out by track-across signal when optical head keeps focusing on rotating disc and stops in radial direction. The track-across signal can be picked up from commercial disc drive. Then the distance of passed tracks is calibrated by linear gratings. The advantages of this method are low-cost and high accuracy.

Citation Download Citation

Jun Huang, Xiandeng Pei, Changsheng Xie, and Benxi Liu "Novel method for disk run-out testing", Proc. SPIE 3430, Novel Optical Systems and Large-Aperture Imaging, (8 December 1998); https://doi.org/10.1117/12.332471

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