Measuring System for Optical Disk Mechanical Characteristics

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概要

• 論文の詳細を見る

• Measuring mechanical characteristics of optical disks is significant not only for designing drives but also for assuring disk interchangeability. This paper shows that the lens-movement detection method has the greatest overall potential and thus fits to a practical system for measuring mechanical characteristics. A system based on this method was constructed by developing simple and accurate capacitive sensors that can be built into an optical head to detect lens movement. The system configuration includes a precision turntable and a high-duarability reference disk to fully extract the potential. Test results show that this measuring system has adequate measuring range, accuracy, and stability. Some applications of this system are described in this paper. They show that the system is useful for evaluating and improving optical disk mechanical characteristics.

• 一般社団法人電子情報通信学会の論文
• 1994-10-25

著者

• YOSHIZAWA Takashi

  NTT Interdisciplinary Research Laboratories

• Hara Shigeji

  Fujita Health University College

関連論文

• Feasibility Study on High Data Transfer Rate of 300 Mbit / s with 8-Beam Laser Diode Array
• High-Precision Head Positioning Using Multiple Offset Beams
• Measuring System for Optical Disk Mechanical Characteristics

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