- 专利标题: TOTAL FOCUSING METHOD (TFM) WITH ACOUSTIC PATH FILTERING
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申请号: US16836211申请日: 2020-03-31
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公开(公告)号: US20210132004A1公开(公告)日: 2021-05-06
- 发明人: Benoit Lepage , Guillaume Painchaud-April
- 申请人: Olympus NDT Canada Inc.
- 申请人地址: CA Quebec
- 专利权人: Olympus NDT Canada Inc.
- 当前专利权人: Olympus NDT Canada Inc.
- 当前专利权人地址: CA Quebec
- 主分类号: G01N29/06
- IPC分类号: G01N29/06 ; G01N29/24
摘要:
An acoustic technique can be used for performing non-destructive testing. For example, a method for acoustic evaluation of a target can include generating respective acoustic transmission events via selected transmitting ones of a plurality of electroacoustic transducers, and in response to the respective acoustic transmission events, receiving respective acoustic echo signals using other receiving ones of the plurality of electroacoustic transducers, and coherently summing representations of the respective received acoustic echo signals to generate a pixel or voxel value corresponding to a specified spatial location of the target. Such summation can include weighting contributions from the respective representations to suppress contributions from acoustic propagation paths outside a specified angular range with respect to a surface on or within the target, such as to provide an acoustic path-filtered total focusing method (PF-TFM).
公开/授权文献
- US11474075B2 Total focusing method (TFM) with acoustic path filtering 公开/授权日:2022-10-18
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