Patent ID: 8610072

Claim:
A sensor head for use in a gas exchange analysis system, the sensor head comprising: a sample chamber defining a measurement volume for analysis of a sample, the sample chamber having an inlet and an outlet; a flow splitting mechanism located proximal to the sample chamber, the mechanism configured to split a gas flow received at an input port from a remote source to a first output port and to a second output port, wherein the first output port is coupled with the inlet of the sample chamber; a first gas analyzer coupled with the outlet of the sample chamber and configured to measure a concentration of one or more gases; a second gas analyzer coupled with the second output port of the flow splitting mechanism and configured to measure a concentration of said one or more gases; wherein measurement error associated with the concentrations of gasses measured by the first and second gas analyzers is reduced due to the proximity of the flow splitting mechanism with the sample chamber and the first and second gas analyzers, and wherein the measurement error is substantially similar across a range of flow rates.