Apparatus and method for visualizing defects using a magneto-optical effect
US12078692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Nov 17, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9518
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magneto-optic imaging apparatus adapted for use with an imaging device, such as a smartphone, tablet computer, or borescope, for visually detecting defects in the surface or subsurface of a component using a magneto-optic effect. The magneto-optic imaging apparatus includes a housing with an interface for connection with the imaging device such that a camera and light source of the imaging device may be implemented for magneto-optic visualization. The housing includes optical elements including one or more filters, a polarizer, a magneto-optic or garnet film, and an analyzer. The housing also includes a flexible coil or electrical terminals for inducing a magnetic field in the component. The magneto-optic imaging apparatus may include a translucent or transparent body of conformable material or materials to conform the magneto-optic film and flexible coil to a non-planar surface of the component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.