Fiber-optic moisture sensor for composite structures
US4221962A · kind A · utility
22Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/431
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radiation carrier such as an optical glass fiber is embedded in a body of material such as a laminated composite panel with the free ends of the fiber extending to or beyond the edges of the structure so that radiation such as light can be directed through one end of the carrier and measured at the other end thereof, to monitor and detect the presence of moisture in the interior of the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.