Method and apparatus for packaging optical fiber sensors for harsh environments
US6928202B2 · kind B2 · utility
17Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Feb 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02209
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A package for an optical fiber sensor having a metal jacket surrounding the sensor, and heat-shrink tubing surrounding the metal jacket. The metal jacket is made of a low melting point metal (e.g. lead, tin). The sensor can be disposed in a rigid tube (e.g. stainless steel or glass) that is surrounded by the metal jacket. The metal jacket provides a hermetic, or nearly hermetic seal for the sensor. The package is made by melting the metal jacket and heating the heat shrink tubing at the same time. As the heat-shrink tubing shrinks, it presses the low melting point metal against the sensor, and squeezes out the excess metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.