Method and computer program for calibrating an electronic device for characterizing a fluid, and corresponding electronic device

A computer program downloadable from a communications network and/or recorded on a computer-readable medium and/or executable by a processor capable of exchanging data with a memory in which are stored:

• a plurality of reference calibration signatures (YREFr,i) relating respectively to an interaction of a plurality of predetermined calibration fluids with at least one sensor of a reference electronic characterization device;
• a parametric model (MOD(α,t)), with at least one adjustable parameter, of the drift of an electronic characterization device to be calibrated with respect to the reference electronic device;
• the computer program comprising instructions for performing the following steps when executed on a computer:
• for each of the plurality of predetermined calibration fluids, obtaining a calibration signature (YDEVr,i) by interaction with at least one sensor of the electronic device to be calibrated;
• determining at least one value (αr, tr) of said at least one adjustable parameter (α,t)) by comparison of the calibration signatures (YDEVr,i) obtained with reference calibration signatures (YREFr,i);
• wherein, the predetermined calibration fluids being divided into a number of different calibration groups, the instructions are more specifically designed so that the determination of said at least one value (αr, tr) of said at least one adjustable parameter (α,t) is carried out specifically for each calibration group.

A calibrated electronic device for characterizing a fluid by providing a signature (YDEV) obtained from an electrical measurement signal (S), comprising:

• at least one sensor designed to interact with the fluid;
• a transducer designed to provide, in interaction with said at least one sensor, the electrical measurement signal (S);
• a storage memory:
• a parametric model (MOD(α,t)), with at least one adjustable parameter (α,t), of the drift of the calibrated electronic device in relation to a reference electronic characterization device,
• at least one value (αr, tr) of said at least one adjustable parameter (α,t), calculated by prior calibration of the calibrated electronic device by comparison with the reference electronic device based on a plurality of predetermined calibration fluids;
• and
• a processor for correcting the signature (YDEV) by applying said at least one adjustable parameter value;
• wherein:
• the predetermined calibration fluids are divided into several different calibration groups and the memory stores at least one specific value (αr, tr) of said at least one adjustable parameter (α,t) for each of the calibration groups;
• and
• the processor is more specifically programmed to select a calibration group to be associated with the fluid to be characterized based on its signature (YDEV), then to correct its signature using said at least one specific adjustable parameter value (αr, tr) of the selected group.