Presentation 2008-10-17
PPP-BOTDA method to achieve 10cm spatial resolution and 10Hz measuring speed in distributed sensing
Che-Hsien LI, Tsutomu TSUDA, Takahiro SAWA, Atsushi MAKITA, Hirokazu TAKANO, Kinzo KISHIDA, Zhishen WU, Nobuo TAKEDA, Shu MINAKUCHI,
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Abstract(in English) The Pulse-Pre-Pump Brillouin Optical Time Domain Analysis (PPP-BOTDA) method is capable of achieving 2cm spatial resolution. Its fundamentals were already published in our previous papers. The PPP-BOTDA based system has been successfully used in various industrial applications. However, as it was previously pointed out, it was so far able to measure the static or quasi-static strain, only. In this paper, the study on the PPP-BOTDA maximum feasible measurement speed is presented. Moreover, the actual measurements employing developed NEUBRESCOPE NBX-6040A system (1,000 data points, spatial resolution of 10cm and 50με strain uncertainty) at 10Hz frequency (speed) are included. The results clearly demonstrate that PPP-BOTDA based distributed sensing system (NEUBRESCOPE NBX-6040A) is suitable for the dynamic strain measurement.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) PPP-BOTDA / Pulse-PrePump Method / Brillouin / Highly spatial resolution / dynamic strain
Paper # OFT2008-42
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Committee OFT
Conference Date 2008/10/10(1days)
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Registration To Optical Fiber Technology (OFT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) PPP-BOTDA method to achieve 10cm spatial resolution and 10Hz measuring speed in distributed sensing
Sub Title (in English)
Keyword(1) PPP-BOTDA
Keyword(2) Pulse-PrePump Method
Keyword(3) Brillouin
Keyword(4) Highly spatial resolution
Keyword(5) dynamic strain
1st Author's Name Che-Hsien LI
1st Author's Affiliation Neubrex Co., Ltd.()
2nd Author's Name Tsutomu TSUDA
2nd Author's Affiliation Neubrex Co., Ltd.
3rd Author's Name Takahiro SAWA
3rd Author's Affiliation Neubrex Co., Ltd.
4th Author's Name Atsushi MAKITA
4th Author's Affiliation Neubrex Co., Ltd.
5th Author's Name Hirokazu TAKANO
5th Author's Affiliation Neubrex Co., Ltd.
6th Author's Name Kinzo KISHIDA
6th Author's Affiliation Neubrex Co., Ltd.
7th Author's Name Zhishen WU
7th Author's Affiliation IBARAKI UNIVERSITY DEPARTMENT OF URABAN & CIVIL ENGINEERING
8th Author's Name Nobuo TAKEDA
8th Author's Affiliation Graduate School of Frontier Sciences The University of Tokyo
9th Author's Name Shu MINAKUCHI
9th Author's Affiliation Graduate School of Frontier Sciences The University of Tokyo
Date 2008-10-17
Paper # OFT2008-42
Volume (vol) vol.108
Number (no) 245
Page pp.pp.-
#Pages 6
Date of Issue