Laser spectroscopy system
US6483589B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jun 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/399
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to provide a laser spectroscopy system of simple construction and free of the effect of the fringe noise and to provide a laser spectroscopy system in which a reference cell is efficiently installed with minimum cost and space, there is disclosed a laser spectroscopy system comprising: a tunable laser diode source for generating a laser beam used for spectroscopic analysis; a sample cell where a sample gas is introduced; a first photo detector for measuring an intensity of a laser beam transmitted through the sample cell and having a beam receiving face; a beam splitter for splitting a portion of the laser beam from the laser source; and a second photo detector for measuring an intensity of a splitted laser beam from the beam splitter and having a beam receiving face, wherein the at least one of beam receiving faces is tilted to be at a predetermined angle from an axis of laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.