High resolution inductive sensor arrays for material and defect characterization of welds
US6727691B2 · kind B2 · utility
40Cited by
13References
44Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jan 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/902
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor that characterizes welds in materials. The sensor includes a meandering drive winding with at least three extended portions and at least one sensing element placed between an adjacent pair of extended portions. A time varying electric current is passed through the extended portions to form a magnetic field. The sensor is placed in proximity to the test material and translated over the weld region. An electrical property of the weld region is measured for each sensing element location. The weld quality is determined using a feature of the electrical property measurement and location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.