ブリルアン利得スペクトルのピーク追跡およびトレンド分析によるピーク誤検知防止

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2019/11/01

タイトル(英語): Prevention of False Peak Detection of Brillouin Gain Spectrum by Using Peak Tracking and Trend Analysis

著者名: 古川　靖（横河電機（株）IA-PS事業本部プロダクト事業センター）

著者名(英語): Osamu Furukawa (Product Business Center, IA-PS Headquarters, Yokogawa Electric Corporation)

キーワード: ブリルアン利得スペクトル，ブリルアン周波数シフト，BOTDR，BOCDR，ピーク誤検知　　Brillouin gain spectrum，Brillouin frequency shift，BOTDR，BOCDR，false peak detection

要約(英語): Distributed optical fiber sensor based on a peak-frequency change of a spectrum of Brillouin scattering light has been extensively studied since it can measure strain and/or temperature in various applications. The distributed optical fiber sensor observes the spectrum of backscattered light from the specified section according to a spatial resolution and determines strain and/or temperature based on the peak-frequency change of the spectrum. However, the observed spectrum may have two maximum peaks that corresponds to strain and/or temperature included in the specified section of the optical fiber. Overlapped noise by the interrogator system to two peaks on the Brillouin gain spectrum causes false detection of the maximum peak-frequency. Although this false detection may occur, no workarounds has been discussed yet. This paper proposes a workaround by method of ‘peak tracking and trend analysis' that considers the change of peak intensity to determine peak frequency of the spectrum and confirms its effect of preventing false peak detection of Brillouin gain spectrum.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.139 No.11 （2019） 特集Ⅰ：電気電子工学関連分野における教育フロンティア　特集Ⅱ：イノベーションを創出する最新の計測技術2019

本誌掲載ページ: 539-544 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/139/11/139_539/_article/-char/ja/