METHOD AND DEVICE FOR QUALITATIVE AND / OR QUANTITATIVE MEASUREMENT OF ODORS PRODUCED BY A PHYSICOCHEMICAL TRANSFORMATION OF A PRODUCT

摘要

Title: METHOD AND DEVICE FOR QUALITATIVE AND / OR QUANTITATIVE MEASUREMENT OF ODORS PRODUCED BY A PHYSICOCHEMICAL TRANSFORMATION OF A PRODUCT The invention relates to a method of qualitative and / or quantitative measurement of odors present in a processing chamber (cooking or fermentation ) of a product. This method makes it possible to avoid pollution of the measurement medium by elements that disturb the measurement which are produced by the transformation and released in the transformation chamber. According to this method, a processing enclosure, for example an oven, an electronic nose, conduits and a fluidic system, a sampling chamber for the elements interfering with the measurement, is used. This method comprises a measurement mode M and a cleaning mode N. The latter comprises the following steps: -N0- optionally, the transformation chamber is purged, preferably by aeration; -N1- the measurement chamber is purged with a fluid, preferably ambient air; -N2- the sampling chamber is purged with a fluid, preferably ambient air; -N3- optionally, at least part of the purge fluid is transferred from the sampling chamber in the transformation enclosure. Figure to be published with the abstract: Fig. 1