Methods and systems for nondestructive material inspection
US10823701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2018 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Feb 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/2412
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining one or more material conditions of a hysteretic ferromagnetic material and/or a nonhysteretic material can include interrogating the hysteretic ferromagnetic material and/or the nonhysteretic material with an input time varying magnetic field and detecting a magnetic response and/or acoustic response over time from the hysteretic ferromagnetic material and/or the nonhysteretic material. The method can also include determining a time dependent nonlinear characteristic of the received magnetic response and/or acoustic response and correlating the time dependent nonlinear characteristic of the received magnetic response or acoustic response to one or more material conditions of the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.