System for monitoring a relative displacement of components
US8514409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Feb 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is provided for monitoring a relative displacement of a pair of end-winding components. The system includes a structure mounted to the end-winding components at an angle with respect to the end-winding components for monitoring the relative displacement. The system further includes an optical fiber with a first portion including a fiber Bragg grating mounted to a surface of the structure to experience a strain resulting from a strain of the structure due to the relative displacement. The optical fiber includes a second portion internally routed through in the structure to the first portion mounted to the surface. The structure is configured so that the strain produced by the structure limits a magnitude of the strain of the fiber Bragg grating within a predetermined range over a span of the relative displacement of the end-winding components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.