Apparatus and system for generating magnetic fields in inaccessible regions
US12038457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2021 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Feb 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor device for testing electrical connections using contactless fault detection is disclosed. The sensor device includes: a surface coil comprising a plurality of concentric loops disposed at a first region located away from the electrical connections. The concentric loops generate a first magnetic field passing through the electrical connections, and the first magnetic field is equivalent to that generated by a coaxial intermediate current loop adjacent to the electrical connections based on an excitation current in the surface coil. The sensor device further includes a sensor adapted to detect a second magnetic field at a second region located away from the electrical connections, wherein variations in the detected second magnetic field provide categories of performance of the electrical connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.