Method for continuous measurement of carbon dioxide output

Publisher Website
Google Scholar
Abstract
An open-circuit flowthrough technique for the continuous measurement of CO2 output in man was described. A stream of room air is drawn past the subject who respires freely from it. The difference in the concentration of CO2 between room air from which the subject inspires and the expired gas/room air mixture is measured and expressed as a voltage. This voltage is amplified by a factor proportional to the rate of flow of room air to yield a continuous measurement of CO2 output. This technique has no systematic error and a random error (95% tolerance limits) of .+-. 3.4, .+-. 1.7 and .+-. 1.4% at mean CO2 outputs of 254, 846 and 1906 ml/min, respectively.

This publication has 0 references indexed in Scilit: