Devices, systems, and methods for sensing moisture
US6965708B2 · kind B2 · utility
40Cited by
19References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Aug 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02095
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various exemplary embodiments, devices, systems, and methods for sensing moisture are disclosed, including at least one moisture sensor that comprises an optical fiber, a long period grating formed in at least a portion of the optical fiber, and a layer of PEI bonded to the long period grating. One exemplary embodiment comprises a system for measuring humidity, the system comprising an optical fiber moisture sensor having a mono-layer of PEI covalently-bonded to an outer surface of said optical fiber, a processor coupled to said optical fiber moisture sensor, and a moisture indicator coupled to said processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.