Arc flash detection system and method
US8040517B1 · kind B1 · utility
13Cited by
26References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2010 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Apr 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sensor to simultaneously detect light and acoustic waves is presented. The sensor includes one or more optical fibers and a diaphragm disposed near one end of at least one of the one or more optical fibers. The diaphragm is configured to vibrate upon incidence of acoustic waves from an arc flash and reflect a light beam into at least the one of the one or more of the optical fibers. A semi-transparent region is disposed around the one or more optical fibers to diffuse light originating from the arc flash into at least one of the one or more optical fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.