high frequency electronic nose sensing and method for determining the quantitative and qualitative composition of a gas or gas mixture through it.

摘要

The invention relates to an electronic nose having a high sensing frequency and to a method for determining the quantitative and qualitative composition of a gas or mixture of gases using same. The invention relates to an electronic nose comprising a set of redundant blocks of gas sensors which are alternated during the aspiration of the air to be smelt, such that, while one block of sensors takes the measurement, the others draw in clean air in order to regain olfactory sensitivity, allowing measurements to be taken rapidly. Each block is housed in a different chamber and includes a set of sensors sensitive to different volatile substances, and, consequently, both a wide variety of smells and concentrations can be recognised. The invention also relates to a method for determining the quantitative and qualitative composition of a gas or mixture of gases using the electronic nose.