Special Section on Advances of Precision Optical Measurements and Instrumentation for Geometrical and Mechanical Quantities

Two-color absolute length measuring method based on pulse repetition interval lengths

[+] Author Affiliations
Dong Wei, Masato Aketagawa

Nagaoka University of Technology, Department of Mechanical Engineering, Nagaoka City, Niigata 940-2188, Japan

Kiyoshi Takamasu, Hirokazu Matsumoto

University of Tokyo, Department of Precision Engineering, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan

Opt. Eng. 53(12), 122413 (Sep 09, 2014). doi:10.1117/1.OE.53.12.122413
History: Received February 18, 2014; Revised August 15, 2014; Accepted August 18, 2014
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Abstract.  A unique absolute length measurement method is proposed and demonstrated for the first time. Since it takes advantage of both the high-accuracy measurement capability of a pulse train interference method and the ability of a two-color method to compensate for environmental changes, the present method is expected to be useful for high-precision length measurement for not only the purposes of laboratory science but also for satisfying the requirements of industry. A length measurement was performed to demonstrate the feasibility of the proposed method.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Dong Wei ; Masato Aketagawa ; Kiyoshi Takamasu and Hirokazu Matsumoto
"Two-color absolute length measuring method based on pulse repetition interval lengths", Opt. Eng. 53(12), 122413 (Sep 09, 2014). ; http://dx.doi.org/10.1117/1.OE.53.12.122413


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