Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device
US7313964B2 · kind B2 · utility
2Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2006 |
| Grant date | Jan 1, 2008 |
| Priority date | — |
| Expiry date | Aug 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for detecting a high pressure condition within a high voltage vacuum device includes detecting the position of a movable structure such as a bellows. The position at high pressures can be detected optically by the interruption of a light beam reflected by a hemispherically shaped reflector. The hemispherical reflector allows the source light fiber to oriented parallel to the detection light fiber, providing a more compact and efficient fiber routing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.