Spatial Resolution Enhancement of Distributed Strain Measurement Using BOTDR by Partially Gluing Optical Fiber

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概要

• 論文の詳細を見る

• An effective spatial resolution enhancement method for distributed strain measurement by BOTDR is proposed. An optical fiber is glued to a structure by a length less than the spatial resolution defined by the pulse width, and the Brillouin spectrum of the light scattered from the glued optical fiber is investigated theoretically. The apparent strain x_p observed in the fiber is found to be proportional to the accurate strain a. The ratio r = x_p/a coincides with the ratio of the glued length to the spatial resolution. Spatial resolution as small as 0.2 m is demonstrated experimentally for small strains of less than 10^<-3>.

• 社団法人電子情報通信学会の論文
• 2002-07-25

著者

• Omatsu Takashige

  Graduate School Of Science And Technology Chiba University

• TATEDA Mitsuhiro

  Graduate School of Science and Technology, Chiba University

• OHSAKI Mitsuhiro

  Graduate School of Science and Technology, Chiba University

• OHNO Hiroshige

  NTT Access Network Service Systems Laboratories

• Ohno H

  Ntt Access Network Service Systems Laboratories

• Tateda Mitsuhiro

  Graduate School Of Advanced Integration Science Chiba University

• Ohsaki Mitsuhiro

  Graduate School Of Science And Technology Chiba University

• Omatsu Takashige

  Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan

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