发明授权
- 专利标题: Method for inspecting pipes, and radiographic non-destructive inspection apparatus
- 专利标题(中): 检查管道的方法和射线非破坏性检查装置
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申请号: US12108183申请日: 2008-04-23
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公开(公告)号: US07885381B2公开(公告)日: 2011-02-08
- 发明人: Yasushi Nagumo , Jun Nukaga , Hiroshi Kamimura , Noriyuki Sadaoka , Satoshi Takemori , Kojirou Kodaira
- 申请人: Yasushi Nagumo , Jun Nukaga , Hiroshi Kamimura , Noriyuki Sadaoka , Satoshi Takemori , Kojirou Kodaira
- 申请人地址: JP Ibaraki
- 专利权人: Hitachi-GE Nuclear Energy, Ltd.
- 当前专利权人: Hitachi-GE Nuclear Energy, Ltd.
- 当前专利权人地址: JP Ibaraki
- 代理机构: Mattingly & Malur, P.C.
- 优先权: JP2007-116302 20070426; JP2007-250402 20070927
- 主分类号: G01N23/04
- IPC分类号: G01N23/04
摘要:
The pipe inspection method and apparatus can be used to implement rapid, tomographic inspection of a pipe set up at a narrow location. The pipe inspection method includes: a first step for scanning the pipe by translating a radiation source and radiation detector arranged opposedly to the pipe; a second step for the radiation detector to detect radiation that the radiation source has emitted, at given scanning distance intervals; a third step for creating a transmission image of the pipe, based on a radiation dose that the radiation detector has detected; and a fourth step for constructing a tomogram or stereoscopic image of the pipe, based on the transmission image. Thus, it is possible to provide the pipe inspection method and apparatus that can be used to implement rapid, tomographic inspection of the pipe set up at a narrow location.
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