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A Direction Sensing Technique of a Reference Point by Using Cross-Hair Diffraction Beam
Masafumi Ito*, Kazuhiro Hane*, Fumio Matsuda**, Yoshiki Uchikawa* and Shuzou Hattori***
* Faculty of Engineering, Nagoya University, Furocho, Chigusa-ku, Nagoya 464, Japan
** Gifu National College of Technology, Motosu-gun, Gifu 501-04, Japan
*** Nagoya Industrial Science Research Institute, Tenpaku-ku, Nagoya 468, Japan
Received:April 30, 1991Accepted:May 20, 1991Published:June 20, 1991
Keywords:Direction measurement, Diffraction beam, Optical measurement
Abstract
We describe a technique for measuring the direction of a reference point easily and accurately. In the method, cross-hair diffraction beam, corner cube and an XYscanner driven by piezo stacks are used. The accuracy for angular detection was about 10p rad.
Cite this article as:M. Ito, K. Hane, F. Matsuda, Y. Uchikawa, and S. Hattori, “A Direction Sensing Technique of a Reference Point by Using Cross-Hair Diffraction Beam,” J. Robot. Mechatron., Vol.3 No.3, pp. 215-217, 1991.Data files: