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:
May. 26, 1981
Filed:
Oct. 01, 1979
Applicant:
Inventor:
Gregory L Zick, Kirkland, WA (US);
Assignee:
Cordis Corporation, Miami, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2041 / ; 73 / ; 128635 ; 2041 / ;
Abstract
Disclosed is apparatus and method for continuously compensating for electrode drift during the measurement of the partial pressure of oxygen by the net charge transport technique. The apparatus derives a correction factor from variations in waveforms representing charge returned from an electrochemical cell after successive interrogating voltage pulses. These wave-forms are independent of oxygen partial pressure but dependent on electrode parameters thereby permitting drift to be monitored and oxygen partial pressure measurements to be corrected.