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. 27, 1996
Filed:
Apr. 18, 1994
Applicant:
Inventors:
Joseph R Stetter, Naperville, IL (US);
G Jorgan Maclay, Maywood, IL (US);
Assignee:
Gas Research Institute, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436147 ; 73 2401 ; 73 2503 ; 364557 ; 374 37 ; 422 83 ; 422 94 ; 422 95 ; 422 98 ;
Abstract
A microcalorimeter includes instrumentation for reducing measurement errors due to system fluctuations. One or more sensors is utilized to detect heat content of a sample gas, and create a composition independent system. Instrumentation for automatically compensating for pressure and temperature variations is also employed in the microcalorimeter. A method for continuously measuring the BTU content of a gas utilizing the microcalorimeter includes steps for adjusting system parameters in response to changes in ambient conditions and sample gas composition to further reduce measurement error.