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:
Oct. 17, 1995
Filed:
Dec. 06, 1994
Applicant:
Inventor:
Henri Fima, Malissard, FR;
Assignee:
Sextant Avionique, Meudon la Foret, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G01N / ; G01L / ;
U.S. Cl.
CPC ...
2504581 ; 2504591 ; 2503385 ;
Abstract
A method for the optical determination of the pressure of a gaseous mixture includes the steps of exciting in the infrared range the molecules of a gas of the mixture, from a first vibrational level towards a second vibrational level, measuring the duration of the fluorescence of a line of the emission spectrum of the gas from one of the rotational sub-levels of the second vibrational level towards another rotational sub-level of a third vibrational level, and deducing from the duration the pressure of the gaseous mixture.