Optical fiber water sensor
US5430815A · kind A · utility
29Cited by
18References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Feb 5, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N19/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical fiber water sensor includes a mandrel having a convex or concave shape adjacent to an optical fiber which is adjacent to a water swellable material held in a reservoir. Upon coming in contact with water, the material swells and deforms a section of the optical fiber about a contour defined by the mandrel thus attenuating a signal propagating through the fiber which is detected by an optical detector to indicate the presence of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.