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JRM Vol.3 No.3 pp. 215-217
doi: 10.20965/jrm.1991.p0215
(1991)

Letter:

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, 1991
Accepted:
May 20, 1991
Published:
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:
Masafumi Ito, Kazuhiro Hane, Fumio Matsuda, Yoshiki Uchikawa, and Shuzou 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.
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