Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to apply a predetermined amount of electrical energy to the heating system to stabilise a property of electrical energy through the heating system, and determine a property related to the flow of the flow path based on the stabilised property of the electrical energy through the heating system, wherein the property related to the flow is an amount of one or more components of the aerosol.

Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to determine a characteristic associated with a second order time derivative of a property of electrical energy through the heating system, and to determine a property related to the flow of the flow path based on the characteristic of the second order time derivative.

Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to determine a feature of an oscillation associated with a property of electrical energy through the heating system, the oscillation due to initiation and/or termination of a user inhale through the flow path, and to determine an amount of one or more components of aerosol dispensed in the inhale based on the feature of the oscillation.

Abstract: This electronic cigarette (1) comprises: —a heating element (10) able to vapourize a substrate during a smoking period; —means (30) for measuring an approximation (AUIOMESOO, UIOMESOO) of a characteristic of the voltage (U10(t)) across the terminals of the heating element (10) during this smoking period, said approximation being measured across the terminals (BI, B2) of a circuit (500) no component of which exhibits intrinsic characteristics not disturbed by the inhalations; —means (30) of estimating an approximation (AU10TH(t), UIO-m(t)) of said characteristic of the voltage (U10(t)) across the terminals of the heating element (10) in the absence of inhalation during said smoking period; means (30) of calculating an intensity (F) representative of the intensity of the inhalations during said smoking period on the basis of an integration of the difference between said approximations during said smoking period; and —means (30) of estimating the said quantity of substrate vapourized by the heating element at le

Abstract: This electronic cigarette (1) comprises: —a heating element (10) able to vapourize a substrate during a smoking period; —means (30) for measuring an approximation (AUIOMESOO, UIOMESOO) of a characteristic of the voltage (U10(t)) across the terminals of the heating element (10) during this smoking period, said approximation being measured across the terminals (BI, B2) of a circuit (500) no component of which exhibits intrinsic characteristics not disturbed by the inhalations; —means (30) of estimating an approximation (AU10TH(t), UIO-m(t)) of said characteristic of the voltage (U10(t)) across the terminals of the heating element (10) in the absence of inhalation during said smoking period; means (30) of calculating an intensity (F) representative of the intensity of the inhalations during said smoking period on the basis of an integration of the difference between said approximations during said smoking period; and —means (30) of estimating the said quantity of substrate vapourized by the heating element at le

Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosola flow path for transmission of flow, including the aerosol, to a user the heating system arranged in fluid communication with the flow path and electrical circuitry. The electrical circuitry is configured to apply a predetermined amount of electrical energy to the heating system to stabilise a property of electrical energy through the heating system and determine a property related to the flow of the flow path based on the stabilised property of the electrical energy through the heating system, wherein the property related to the flow is an amount of one or more components of the aerosol.

Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to determine a feature of an oscillation associated with a property of electrical energy through the heating system, the oscillation due to initiation and/or termination of a user inhale through the flow path, and to determine an amount of one or more components of aerosol dispensed in the inhale based on the feature of the oscillation.

Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to determine a characteristic associated with a second order time derivative of a property of electrical energy through the heating system, and to determine a property related to the flow of the flow path based on the characteristic of the second order time derivative.

Abstract: An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path; and electrical circuitry. The electrical circuitry is configured to: measure a property of the electrical energy through the heating system, determine one or more characteristics from the result of the measurement of the measured property of the electrical energy, select, based on the determined characteristics, one from a plurality of different stored relationships between the measured property of the electrical energy and a property of the flow, and determine the property of the flow based on relationship.

Abstract: This electronic cigarette (1) comprises: —a heating element (10) able to vapourize a substrate during a smoking period; —means (30) for measuring an approximation (AUIOMESOO, UIOMESOO) of a characteristic of the voltage (U10(t)) across the terminals of the heating element (10) during this smoking period, said approximation being measured across the terminals (BI, B2) of a circuit (500) no component of which exhibits intrinsic characteristics not disturbed by the inhalations; —means (30) of estimating an approximation (AU10TH(t), UIO-m(t)) of said characteristic of the voltage (U10(t)) across the terminals of the heating element (10) in the absence of inhalation during said smoking period; means (30) of calculating an intensity (F) representative of the intensity of the inhalations during said smoking period on the basis of an integration of the difference between said approximations during said smoking period; and —means (30) of estimating the said quantity of substrate vapourized by the heating element at le

Abstract: This electronic cigarette comprises: —a heating element able to vaporize a substrate during a smoking period; —means for measuring an approximation of a characteristic of the voltage across the terminals of the heating element during this smoking period, said approximation being measured across the terminals of a circuit no component of which exhibits intrinsic characteristics not disturbed by the inhalations; —means of estimating an approximation of said characteristic of the voltage across the terminals of the heating element in the absence of inhalation during said smoking period; means of calculating an intensity representative of the intensity of the inhalations during said smoking period on the basis of an integration of the difference between said approximations during said smoking period; and —means of estimating the said quantity of substrate vaporized by the heating element at least on the basis of said intensity.

Abstract: This electronic cigarette comprises: —a heating element able to vapourize a substrate during a smoking period; —means for measuring an approximation of a characteristic of the voltage across the terminals of the heating element during this smoking period, said approximation being measured across the terminals of a circuit no component of which exhibits intrinsic characteristics not disturbed by the inhalations; —means of estimating an approximation of said characteristic of the voltage across the terminals of the heating element in the absence of inhalation during said smoking period; means of calculating an intensity representative of the intensity of the inhalations during said smoking period on the basis of an integration of the difference between said approximations during said smoking period; and—means of estimating the said quantity of substrate vapourized by the heating element at least on the basis of said intensity.