Dry-coupled magnetostrictive guided wave scanning system and method
US11519878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2021 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Mar 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0427
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system includes a scanner body, a sensor package, a magnet, an actuator mechanism, and a retention mechanism. The sensor package includes a ferromagnetic strip and a flexible coil configured to at least one of transmit and detect a guided wave. The magnet is for applying a biasing magnetic field to the ferromagnetic strip. The actuator mechanism is configured to provide a mechanical pressure coupling between the magnetostrictive strip and a structure, and the retention mechanism is configured to counteract a force applied by the actuator mechanism. A processor is in communication with the sensor package and is configured to record guided wave signals detected by the flexible sensor coil, record scanner body location data provided by a position encoder, and generate two-dimensional image data of an anomaly in the structure based on the guided wave signals and location data. Methods of use and operation also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.