Invention Grant
- Patent Title: Active sensor, multipoint active sensor, method for diagnosing deterioration of pipe, and apparatus for diagnosing deterioration of pipe, and apparatus for diagnosis deterioration of pipe
- Patent Title (中): 主动传感器，多点有源传感器，管道劣化诊断方法，管道劣化诊断装置，管道诊断劣化装置
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Application No.: US12101395Application Date: 2008-04-11
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Publication No.: US07711217B2Publication Date: 2010-05-04
- Inventor: Masashi Takahashi , Keiichi Sasaki , Nobuo Yamaga , Norio Ahiko , Koichi Yoshimura , Masanobu Ohi , Yoshio Mochida , Yuuichi Machijima , Takehiro Shirai
- Applicant: Masashi Takahashi , Keiichi Sasaki , Nobuo Yamaga , Norio Ahiko , Koichi Yoshimura , Masanobu Ohi , Yoshio Mochida , Yuuichi Machijima , Takehiro Shirai
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba,Lazoc Incorporated
- Current Assignee: Kabushiki Kaisha Toshiba,Lazoc Incorporated
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-106025 20070413
- Main IPC: G02B6/00
- IPC: G02B6/00 ; G01B11/02 ; G21C17/017
Abstract:
An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
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