Optical fibre interferometric electric current measuring device
US4542338A · kind A · utility
14Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1983 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Mar 9, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Optical fibre interferometer for measuring a current carried by a high voltage line of the type comprising a winding traversed by a feedback current, having at least one base at earth potential, incorporating the interferometer core and the feedback winding, an insulating member and a measuring head mounted on a conductor traversed by the current to be measured. The insulating member is a rigid member forming a support or, in a preferred variant, a tubular insulating member having a flexible wall and provided with skirts made from an insulating material with a rounded "water droplet" profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.