Fiber optic sensing system for grid-based assets
US11585692B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 27, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Aug 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/406
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor system includes a sensor network comprising at least one optical fiber having one or more optical sensors. At least one of the optical sensors is arranged to sense vibration of an electrical device and to produce a time variation in light output in response to the vibration. A detector generates an electrical time domain signal in response to the time variation in light output. An analyzer acquires a snapshot frequency component signal which comprises one or more time varying signals of frequency components of the time domain signal over a data acquisition time period. The analyzer detects a condition of the electrical device based on the snapshot frequency component signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.