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:
Jan. 10, 1978
Filed:
Feb. 18, 1975
William E Bell, Mountain View, CA (US);
Diax Corporation, Los Altos Hills, CA (US);
Abstract
In laser absorption spectroscopy a fluid sample is irradiated with a beam of coherent optical radiation preferably in the infrared band. A detector such as an acoustic detector or thermal detector is coupled in acoustic or thermal energy exchanging relation, respectively, with the fluid medium to detect the absorption of energy, if any, by the fluid from the beam of coherent radiation. One or more of the physical or chemical parameters of the fluid or substances interacting with the fluid are changed and resultant changes, if any, are detected in the absorption of energy by the fluid to yield information concerning the fluid or substances interacting with the fluid.