MEASURING DEVICE AND MEASURING METHOD

摘要

The invention relates to a measuring device (10) and a measuring method for measuring a concentration of gaseous and/or aerosol components of a gas mixture for a reaction carrier (14) which has a flow channel (42) defining a reaction chamber (46) in which a reaction material (48) is provided, said reaction material being designed to react in an optically detectable manner with at least one component to be measured of the gas mixture or with a reaction product of the component to be measured. The measuring device (12) comprises a detection unit (3) and a gas delivery unit (2), the detection unit (3) having a lighting device (37) for lighting the reaction chamber (46) of the reaction carrier (14), an optical sensor (38) for detecting the optically detectable reaction, and an evaluation unit (4) for evaluating data of the optically detectable reaction received from the optical sensor (38) and for determining a concentration of the component of the gas mixture. The gas delivery unit (2) comprises a gas delivering device (28) for delivering the gas mixture through the gas outlet channel (18) and a control/regulation unit (31) which is designed to control or regulate a flow of the gas mixture through the flow channel (42) depending on at least one reaction speed parameter.