Electrode placement for verifying structural integrity of materials
US10983081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2017 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Dec 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/045
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A technique may include applying a first electrical signal to a first pair of drive electrodes, and, while applying the first electrical signal to the first pair of drive electrodes, determining a first measured voltage using a first measurement electrode. The technique further may include applying a second electrical signal to a second pair of drive electrodes, and, while applying the second electrical signal to the second pair of drive electrodes, determining a second measured voltage using a second, different measurement electrode. The first pair of drive electrodes, the second pair of drive electrodes, the first measurement electrode, and the second, different measurement electrode may from a set of N electrodes electrically coupled to the material. The technique also may include determining whether the material includes a crack or other defect based on a comparison between the first measured voltage and the second measured voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.