Break detection system using optical fibers having unique frequency modulated light
US5013908A · kind A · utility
16Cited by
14References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1988 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Nov 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/186
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fiber optic detection system comprising an array of fiber optic elements is presented. Each fiber optic element is uniquely encoded using a plurality of discrete ferquencies, digital codes or other encoding techniques. When a break occurs in one or more fiber optic elements, the missing light frequencies or digital codes are sensed, thereby indicating the break. Preferably, the fiber optic elements are arranged in a grid pattern so that precise location of the break can be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.