Patent ID: 11879881
Assignee: ELICHENS
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for calibrating a gas sensor, the gas sensor belonging to a network of sensors distributed between various positions in a geographical region, the gas sensor being intended to measure a concentration of an analyte in the air at various measurement times, the geographical region comprising at least one reference station, which is remote from the gas sensor, the reference station being intended to measure, at various reference times, a concentration of analyte in the air, the method comprising:
a) associating at least one reference station with the gas sensor;
b) during a calibration time slot, measuring an analyte concentration with the gas sensor and measuring an analyte concentration with each reference station associated with the gas sensor;
c) from the measurement of the analyte concentration measured by each reference station associated with the gas sensor, in the calibration time slot, estimating an analyte concentration in the position of the gas sensor;
d) comparing the analyte concentration estimated in c) and the analyte concentration measured by the gas sensor in b);
e) calibrating the gas sensor using on the comparison made in d);
wherein:
the analyte is emitted, in the geographical region, at a concentration that varies over the course of a day, the emitted analyte concentration varying between a minimum and a maximum over the course of each day;
the calibration time slot is determined so as to correspond to a minimum emission of the analyte in the geographical region in question, during each day.