Low noise Raman analyzer system
US5963319A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1998 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Mar 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An instrument that analyzes chemical properties of a specimen using optical sensing provides a laser source with an optical fiber channel that carries light from the source to a probe. The probe has a receiving optical fiber and has an emitting optical fiber that carries Raman-scattered light from the specimen. The emitting optical fiber has a metal buffer layer. A spectral detector receives light from the receiving optical fiber in the probe. A filter module includes a filter that transmits the wavelength of the laser source but blocks wavelengths longer than the source between the source and the emitting optical fiber or the probe. The filter module is coupled to the probe by a linking optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.