Abstract: Microphone comprising at least one perforated rigid membrane and at least one flexible membrane placed at a distance from the rigid membrane so as to form an enclosure between the rigid membrane and the flexible membrane, the flexible membrane being suited to being displaced by a sound vibration of air outside of the microphone via the perforated rigid membrane, said microphone being characterised in that it comprises means for measuring the quantity of at least one gas, said means for measuring being mounted in the enclosure in order to measure at least one gas present in said enclosure.

Abstract: A portable device for measuring the state of health of a user configured to be carried/worn by the user and comprising at least one measurement unit and at least one electric battery supplying the measurement unit with electricity, said electric battery comprising at least two charging electrodes that are configured to cooperate with a charging device in order to electrically recharge the electric battery, among which at least two of the charging electrodes, referred to as charging and measurement electrodes, are configured so as to be in contact with the sweat of the user and are connected to the measurement unit in order to measure, in cooperation with said measurement unit, at least one physical parameter of the sweat of the user, in order to measure their state of health.

Abstract: Vehicle comprising a passenger compartment and a system for cleaning the passenger compartment comprising at least one measuring member for measuring the level of dirtiness of said passenger compartment, at least one heating member configured to heat the ambient air of the passenger compartment to a temperature higher than 40° C. in order to desorb the impurities in the passenger compartment, at least one ventilation member configured to remove the ambient air and the desorbed impurities to outside the passenger compartment and at least one control member configured to activate the heating member if the measured level of dirtiness is above a predetermined maximum level of dirtiness.

Abstract: A system for detecting at least one pathology of a cat, said system being intended to be mounted in the vicinity of a cat litter and comprising at least one gas sensor configured to measure the amount of at least one gas representing a pathology of a cat, at least one alarm component configured to emit an alarm, and at least one electronic unit configured to activate the alarm component if the amount of measured gas is greater than a predetermined threshold.

Abstract: A method for detecting at least one gas quantity of at least one predetermined gas by a sensor for measuring a plurality of gases, the sensor comprising a sensitive layer configured to measure the plurality of gases, having an impedance Zs and a heating layer on which the sensitive layer is mounted, the heating layer being configured to be supplied with power in order to vary the temperature of the sensitive layer, the method comprising: a step of supplying the heating layer with at least one voltage ramp defining a linear change in the supply voltage between a low voltage value and a high voltage value, in order to modify the temperature of the sensitive layer during a variation period, a step of measuring variations in the impedance of the sensitive layer at a plurality of temperatures of the sensitive layer during the variation period, so as to detect a plurality of gas quantities, a step of comparing, with a database, at least one variation of the impedance of the sensitive layer measured at a given tempe