Handheld fiber optic current and voltage monitor for high voltage applications
US8797019B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 11, 2012 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R35/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A handheld fiber optic current and voltage monitor for applications in high voltage environment. A light source generates constant optical signal that is split by a fiber optic splitter into two paths. One path feeds a DMEMS based current sensor that is driven by a current to voltage conversion device that converts the current in a conductor into a voltage. The other path goes to a DMEMS based electric field sensor driven by a condenser antenna that converts the electric field near a high voltage power line conductor into a voltage. The output optical signals from the current sensor and the electric field sensor are received by respective optical receivers and converted into electric signals. A signal processing unit processes the signals, and a display screen displays the results. All these are mounted on a plastic mast for handheld operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.