The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2002
Filed:
Nov. 30, 1994
Applicant:
Inventors:
David S. Bomse, Santa Fe, NM (US);
D. Christian Hovde, Santa Fe, NM (US);
Joel A. Silver, Santa Fe, NM (US);
Assignee:
Southwest Sciences Incorporated, Santa Fe, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/135 ; G01N 2/161 ;
U.S. Cl.
CPC ...
G01N 2/135 ; G01N 2/161 ;
Abstract
Disclosed are a method and apparatus for dual modulation of an optical spectroscopy laser. Demodulation is accomplished in a manner resulting in measurement of absorbance of a gas species, as well as stabilization of laser wavelength and baseline noise reduction.