Electrical pathway intermittent fault detection
US11349433B2 · kind B2 · utility
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Key dates
| Filing date | Oct 6, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Oct 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Testing to detect intermittent electrical pathways is described. Applied currents may be reversed to fully test all components of a workpiece. Various testing methodologies may be employed. These methodologies may include Time Domain Reflectometry (TDR), mechanical agitation, dark current/voltage testing, (dark IV), i.e., electrical testing of a workpiece using applied electricity, and thermographic imaging, e.g., infra-red thermal imaging. The sensed voltage during agitation may be compared to a benchmark voltage to determine whether or not an intermittent failure exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.