Patent ID: 6728643
Filing Date: 2004-04-27
Classification: G01N

Abstract:
A process for measuring and checking concentration values of a plurality of gas components in a gas sample, the process comprising the steps of:introducing a plurality of different calibrating gases into a gas-measuring device with a plurality of sensors, where â€œnâ€  represents the number of the plurality of sensors, said sensors are for measuring a plurality of possible gas components, where â€œmâ€  represents the number of possible gas components, the number of sensors â€œnâ€  and the number of possible gas components â€œmâ€  have the relationship of mpassing a corresponding n number of measured values for each calibrating gas, as measurement points, on to an evaluating unit; determining a â€œmâ€  number-dimensional subvector space, which comprises in the best approximation all the measurement points determined for the measurement points determined for the calibrating gases in an n-dimensional vector space of all possible measurement points; determining a tolerance range, which forms the environment of the m-dimensional subvector space (E) in the n-dimensional vector space of all possible measurement points; introducing a gas sample into the gas-measuring device; passing corresponding measurement points determined by the sensors for the gas sample to the evaluating unit; classifying, with the evaluating unit, each measurement point determined for the gas sample within the tolerance range as plausible, and classifying, with the evaluating unit, each measurement point located outside the tolerance range as implausible.