Method for determining the dielectric response of an aerosol-generating article

JP2024515069A5Pending Publication Date: 2025-04-14JT INTERNATIONAL SA
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Patent Information

Application Number
JP2023562271
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2021-04-28
Filing Date
2022-04-13
Publication Date
2025-04-14

AI Technical Summary

Technical Problem

Existing aerosol-generating devices lack the ability to intelligently detect the properties of the inserted aerosol-generating substrate, such as moisture and volatile substance content, leading to inconsistent performance and potential misuse or incorrect operation.

Method used

The device measures the dielectric response of the aerosol-generating article by applying an alternating voltage at intermediate frequencies between terminals contacting different portions of the article, analyzing the current characteristics to determine moisture and volatile substance levels, and adjusting operation accordingly.

Benefits of technology

This method allows for precise detection of substrate conditions, preventing incorrect use, optimizing device performance, and providing users with information about substrate depletion, thereby enhancing user experience and device efficiency.

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Abstract

The aerosol generating device (10) comprises a first terminal (42) and a second terminal (44) disposed within the heating chamber (18) to contact different portions of the aerosol generating article (100). An alternating voltage is applied between the first and second terminals (42, 44) and the characteristics of the current flowing therebetween are measured. The characteristics are used to determine the dielectric response of the aerosol generating article (100) at the applied frequency. The dielectric response includes both conductive and capacitive components and may be used to identify the condition of the aerosol generating article (100), for example, whether it is inserted correctly or the amount of volatile substance, such as nicotine, it contains. By comparing the dielectric response before and after the device (10) is used, it is possible to estimate the amount of volatile substance inhaled by a user of the device (10).
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