公开(公告)号：US12287282B2

公开(公告)日：2025-04-29

申请号：US17758291

申请日：2020-12-28

Applicant: ARYBALLE

Inventor： Cyril Herrier ,  David Harbine ,  Yanis Caritu

IPC: G01N21/27 ,  G01N21/552 ,  G01N21/78

Abstract: A method for recalibrating an electronic nose includes successively injecting, into a measurement chamber, reference gases that do not contain target compounds and that have various values of relative humidity. A measurement signal is determined in the course of each injection. Then, for each reference gas, a baseline is determined, which baseline is representative of the determined measurement signal. The baseline is also associated with the relative humidity of the reference gas present. A second correction function is determined on the basis of the determined baselines and of the predetermined values of relative humidity. The second correction function is then stored in a processing unit instead of a first correction function.

公开(公告)号：US10928369B2

公开(公告)日：2021-02-23

申请号：US16490527

申请日：2018-03-02

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE GRENOBLE ALPES ,  ARYBALLE TECHNOLOGIES

Inventor： Cyril Herrier ,  Yanxia Hou-Broutin ,  Francois-Xavier Gallat ,  Thierry Livache ,  Tristan Rousselle

IPC: G01N33/00 ,  G01N21/41 ,  G01N21/552 ,  G01N21/61

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.

公开(公告)号：US11953483B2

公开(公告)日：2024-04-09

申请号：US17442201

申请日：2020-03-25

Applicant: ARYBALLE

Inventor： Thierry Livache ,  Cyril Herrier ,  Romain Dubreuil

IPC: G01N33/00

CPC classification number: G01N33/007

Abstract: A method determines a potential poisoning of a sensor of an electronic nose by a volatile compound following an exposure of the sensor to a gaseous sample including at least this volatile compound. If there is poisoning, the method determines whether the sensor is still functional such that the sensor is still capable of carrying out one or a plurality of reliable measurements, or on the contrary, whether the sensor is saturated and must no longer be used. The method may be used with any type of electronic nose.

公开(公告)号：US20230031220A1

公开(公告)日：2023-02-02

申请号：US17758291

申请日：2020-12-28

Applicant: ARYBALLE

Inventor： Cyril Herrier ,  David Harbine ,  Yanis Caritu

IPC: G01N21/27 ,  G01N21/552 ,  G01N21/78

Abstract: A method for recalibrating an electronic nose includes successively injecting, into a measurement chamber, reference gases that do not contain target compounds and that have various values of relative humidity. A measurement signal is determined in the course of each injection. Then, for each reference gas, a baseline is determined, which baseline is representative of the determined measurement signal. The baseline is also associated with the relative humidity of the reference gas present. A second correction function is determined on the basis of the determined baselines and of the predetermined values of relative humidity. The second correction function is then stored in a processing uni instead of a first correction function.

公开(公告)号：US20230358698A1

公开(公告)日：2023-11-09

申请号：US17780635

申请日：2020-11-25

Applicant: ARYBALLE

Inventor： Cyril Herrier ,  David Harbine ,  Yanis Caritu

IPC: G01N27/12 ,  G01N33/00 ,  G01N21/552

CPC classification number: G01N27/121 ,  G01N33/0026 ,  G01N33/0006 ,  G01N33/0034 ,  G01N21/553 ,  G01N2201/12746

Abstract: A method for characterizing compounds of interest, introduced into a measuring chamber of an electronic nose, includes injecting a first gas sample formed from a carrier gas without the compounds of interest forming a second gas sample from the carrier gas with the compounds of interest; determining a measurement signal (Sk(ti)); measuring values φ1, φ2 of the relative humidity; determining corrective parameter ({tilde over (S)}kref|φ2; ΔSkref|Δφ); and determining a useful signal (Suk(tiϵP2)) by correcting the measurement signal associated with the second gas sample using the determined corrective parameter, and characterizing the compounds of interest based on the useful signal.

公开(公告)号：US11287377B2

公开(公告)日：2022-03-29

申请号：US16647414

申请日：2018-09-11

Applicant: ARYBALLE ,  COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  UNIVERSITÉ GRENOBLE ALPES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Yanxia Hou-Broutin ,  Sophie Brenet ,  Thierry Livache ,  Cyril Herrier ,  Tristan Rousselle

IPC: G01N21/552 ,  G01N21/77 ,  G01N33/00

Abstract: The invention relates to a detection system for an electronic nose capable of detecting and identifying a set of compounds that can be found in a gaseous sample, the detection system comprises a plurality of cross-reactivity detection sensors (D1, D2, D3, D4, D5, D6, D7) for supplying signals representing the presence of one or more compounds of said set in the gaseous sample, and which is particularly characterised in that the detection system further comprises at least one reference sensor (RI) for supplying a signal representing the measurement noise of the detection system. The detection system further relates to an electronic nose comprising such a detection system.