A compensation method for membrane-covered (Clark) electrodes.
Membrane-covered electrodes (Clark electrodes) are widely used for monitoring blood gases, particularly PO2. A method of compensating for the inherently limited speed of response of Clark electrodes is presented. The theoretical response in the time domain is related to that in the frequency domain, and the latter is deduced from measurement of the former. Although the response functions are both infinite series, both responses are nevertheless completely defined by a single time parameter Te characteristic of the electrode under given measurement conditions. Practical verification was performed using electrodes in the double-pulsed mode, but the theory is applicable equally to direct-current-polarized and simply pulsed electrodes.
Barton
S A
SA
Nuffield Department of Anaesthetics, University of Oxford, United Kingdom.
Hahn
C E
CE
Black
A M
AM
D000465:Algorithms; D000818:Animals; D001784:Blood Gas Analysis / Q000295:instrumentation* / Q000379:methods; D004285:Dogs; D004566:Electrodes; D010100:Oxygen / Q000097:blood; D011659:Pulmonary Gas Exchange
D010100:Oxygen