Shear wave sensors for acoustic emission and hybrid guided wave testing
US10473624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Feb 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2694
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system includes at least one circumferentially-polarized d15 shear ring transducer and a controller electrically coupled to the at least one circumferentially-polarized d15 shear ring transducer. The at least one circumferentially-polarized d15 shear ring transducer is configured to be disposed on a structure and to detect at least one shear horizontal-type acoustic emission from damage to the structure. The controller includes a machine-readable storage medium and a processor in signal communication with the machine-readable storage medium. The processor is configured to store acoustic emission signal data in the machine-readable storage medium when a signal amplitude detected by the at least one circumferentially-polarized d15 shear ring transducer crosses a first threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.