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:
Mar. 17, 1987
Filed:
Sep. 03, 1985
Applicant:
Inventors:
Howard W Sibley, Baldwinsville, NY (US);
Karl Shaffer, Bridgeville, PA (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K / ; G01N / ;
U.S. Cl.
CPC ...
62129 ; 340631 ; 356 70 ; 356442 ; 250301 ; 250343 ;
Abstract
An apparatus and method is provided for infrared qualitative analysis of a fluid independent of the temperature of the fluid. A first signal is generated in response to detected infrared energy passing through the fluid, and a second datum signal is provided for comparison with the first signal, wherein the second signal indicates a non-radiating state. The energy difference between the two signals is provided to a microprocessor control system for computing the fluid quality as a function of the energy difference independent of the temperature of the fluid.