Detecting gaseous species by light-emission spectrometry...

Details Detecting gaseous species by light-emission spectrometry... Detecting gaseous species by light-emission spectrometry...

2005-02-24

2008-12-23

Lauchman, L. G. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

C438S009000

Reexamination Certificate

active

07468790

ABSTRACT:
A method of detecting gaseous species in a mixture by light-emission spectroscopy, in which use is made of the radiation emitted by a plasma (4) present in the gas mixture under analysis, a measurement system (20) is used to take a raw optical spectrum of said radiation emitted by the plasma (4), and the raw optical spectrum is compared with a library of reference optical spectra, the method comprising a step of generating a pruned optical spectrum, which step consists in making use, in the raw optical spectrum, of only those zones of the spectrum that present a significant shape corresponding to a predefined shape criterion, and subsequently said pruned spectrum is compared with the library of reference optical spectra.

REFERENCES:
patent: 3836255 (1974-09-01), Schuman
patent: 5014217 (1991-05-01), Savage
patent: 5658423 (1997-08-01), Angell et al.
patent: 5706082 (1998-01-01), Colgan et al.
patent: 5991020 (1999-11-01), Loge
patent: 6046796 (2000-04-01), Markle et al.
patent: 6101971 (2000-08-01), Denholm et al.
patent: 6157867 (2000-12-01), Hwang et al.
patent: 0 584 676 (1994-03-01), None
patent: 0 677 737 (1995-10-01), None
patent: WO 02/44698 (2002-06-01), None
U.S. Appl. No. 11/064,484, filed Feb. 24, 2005, entitled “Detecting Minority Gaseous Species by Light-Emission Spectroscopy.”

Affiliated with

Also associated with

Rating

Detecting gaseous species by light-emission spectrometry... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detecting gaseous species by light-emission spectrometry..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting gaseous species by light-emission spectrometry... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4037350