METHOD FOR CHARACTERISING TARGET COMPOUNDS

    公开(公告)号:US20220120682A1

    公开(公告)日:2022-04-21

    申请号:US17419463

    申请日:2019-12-28

    Abstract: Disclosed is a method for characterizing target compounds using an analyzing system comprising a measurement chamber intended to receive the target compounds contained in a fluid sample and in which a plurality of separate sensitive sites each comprise receivers able to interact with the target compounds. The method includes supplying a fluid sample, determining a measurement signal Sk(ti) representative of the interactions between the target compounds and the receivers; computing a normed vector Sn(ti); and reiterating the determining and computing steps, while incrementing the measurement time, until a stability criterion is met, so as to obtain a characterization of the target compounds from the normed vector Sn(ti).

    Method of calibrating an electronic nose

    公开(公告)号:US10928369B2

    公开(公告)日:2021-02-23

    申请号:US16490527

    申请日:2018-03-02

    Abstract: The invention relates to a method for calibrating an electronic nose, said electronic nose comprising a plurality of optical sensors arranged on a surface and capable of being in contact with a gaseous medium of interest, said optical sensors being capable of delivering a signal representative of the local optical index of the gaseous medium of interest when they are excited by photons, the method being characterized in that it comprises the following steps: after having placed the electronic nose in a gaseous medium of interest at the initial pressure (P0) and the initial temperature (T0): a) sending photons in the direction of the sensors so as to excite said sensors; b) measuring the signal delivered by each of the sensors, this measurement providing as many responses as there are sensors; c) modifying the pressure and/or temperature of the gaseous medium of interest; d) repeating step b); and e) for each sensor, determining a correction factor such as a variation in the signal between steps d) and b) corrected by the correction factor either equal to or substantially equal to a variation in the signal between these same steps for a reference, said reference being provided by a reference sensor or a combination of reference sensors. Such a method allows a physical calibration, that in the present case is relative, to be performed between the different sensors.

    METHOD OF CALIBRATING AN ELECTRONIC NOSE
    3.
    发明申请

    公开(公告)号:US20200088702A1

    公开(公告)日:2020-03-19

    申请号:US16490527

    申请日:2018-03-02

    Abstract: The invention relates to a method for calibrating an electronic nose, said electronic nose comprising a plurality of optical sensors arranged on a surface and capable of being in contact with a gaseous medium of interest, said optical sensors being capable of delivering a signal representative of the local optical index of the gaseous medium of interest when they are excited by photons, the method being characterized in that it comprises the following steps: after having placed the electronic nose in a gaseous medium of interest at the initial pressure (P0) and the initial temperature (T0): a) sending photons in the direction of the sensors so as to excite said sensors; b) measuring the signal delivered by each of the sensors, this measurement providing as many responses as there are sensors; c) modifying the pressure and/or temperature of the gaseous medium of interest; d) repeating step b); and e) for each sensor, determining a correction factor such as a variation in the signal between steps d) and b) corrected by the correction factor either equal to or substantially equal to a variation in the signal between these same steps for a reference, said reference being provided by a reference sensor or a combination of reference sensors. Such a method allows a physical calibration, that in the present case is relative, to be performed between the different sensors.

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