RF Aerosol Heating With Moisture Feedback for Uniform Heating
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Solution Overview
Problem
Aerosol generating devices using dielectric heating methods lack moisture detection sensors, leading to non-uniform heating and reduced user satisfaction due to inadequate consideration of user smoking flavor sensations.
Innovation Solution
Incorporating a moisture detection sensor to adjust microwave output based on the moisture content of the aerosol generating article, using a dielectric heating method to ensure optimal heating efficiency and user satisfaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If dielectric heating method is used without moisture detection sensor, then heating efficiency is improved, but heating uniformity deteriorates
Solution Approach 1:
The patent introduces a moisture detection sensor that provides real-time feedback on the moisture content of the aerosol generating article. The control unit receives this feedback signal and dynamically adjusts the microwave output power to maintain optimal heating conditions throughout the heating process, ensuring both efficiency and uniformity.
Solution Approach 2:
The system transitions from static microwave heating to dynamic adaptive heating. The microwave output is continuously adjusted based on real-time moisture detection, allowing the heating parameters to change dynamically throughout the heating process to maintain optimal conditions as moisture content decreases.
2Device complexity
If dielectric heating method is used without moisture detection sensor, then device complexity is reduced, but user satisfaction deteriorates
Solution Approach 1:
The moisture detection sensor provides feedback on the actual heating state, enabling the control unit to automatically adjust microwave output. This ensures optimal heating performance that matches user expectations for flavor and experience, thereby improving user satisfaction despite the added sensor complexity.
Solution Approach 2:
The system performs self-adjustment of heating parameters based on real-time moisture detection. The control unit automatically modifies microwave output without user intervention, ensuring consistent quality and user satisfaction while simplifying the user interface and operation.
3Device complexity
If microwave output is not adjusted based on moisture content, then device complexity is reduced, but heating uniformity deteriorates
Solution Approach 1:
The system implements dynamic adjustment of microwave output power based on real-time moisture content detection. As moisture is consumed during heating, the control unit automatically modifies the microwave power to compensate for changing dielectric properties, maintaining uniform heating throughout the process.
Solution Approach 2:
The patent changes the microwave output power parameter in response to detected moisture content changes. By adjusting this key parameter throughout the heating process, the system compensates for moisture consumption and maintains optimal heating uniformity despite the added sensing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides uniform heating and enhances user satisfaction by adjusting microwave output based on moisture content, improving the overall smoking experience.
Implementation Method 1
aerosol generating devices in the art have a slow preheating speed and non-uniform heating, as compared with a dielectric heating method
Implementation Method 2
a matching frequency is tracked according to consumption of aerosol generating substances (for example, moisture etc.)
Data Source
AI summary
An aerosol generating device includes a source unit configured to generate a radio frequency (RF) signal, a radiating unit configured to heat the aerosol generating article by radiating the RF signal in a form of electromagnetic waves to an insertion space into which an aerosol generating article is inserted, a sensing unit configured to detect a change in moisture of the aerosol generating article according to the heating by the radiating unit, and a control unit configured to control a frequency and a power of the RF signal output by the source unit, based on the change in moisture of the aerosol generating article.