The development of a grating interferometer with application to the angular measurement of a hard disk drive actuator arm for application to the servo-track writing process is presented. First, the theoretical background related to the linear type grating interferometer is presented, and this theory is extended to the measurement of the angular displacement of a hard disk drive actuator arm using a linear grating. A vector based diffraction technique has also been developed as a tool for visualization and analysis of the grating interferometer design. Finally, experimental setups and results from a prototype grating interferometer design are presented and discussed to demonstrate the feasibility of the grating interferometer measurement system.
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August 2001
Technical Papers
Development of a Grating Interferometer with Application to HDD Servo-Track Writing
Harry D. Garner,
Harry D. Garner
George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
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Kok-Meng Lee,
Kok-Meng Lee
George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
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Lin Guo
Lin Guo
Maxtor Corporation, Milpitas, CA 95035
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Harry D. Garner
George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
Kok-Meng Lee
George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
Lin Guo
Maxtor Corporation, Milpitas, CA 95035
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received Nov. 1999; revised April 2000. Associate Editor: E. C. DeMeter.
J. Manuf. Sci. Eng. Aug 2001, 123(3): 445-452 (8 pages)
Published Online: April 1, 2000
Article history
Received:
November 1, 1999
Revised:
April 1, 2000
Citation
Garner , H. D., Lee, K., and Guo, L. (April 1, 2000). "Development of a Grating Interferometer with Application to HDD Servo-Track Writing ." ASME. J. Manuf. Sci. Eng. August 2001; 123(3): 445–452. https://doi.org/10.1115/1.1360694
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