Total focusing method (TFM) with acoustic path filtering
US11474075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Nov 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2638
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.