Aerosol-Generating Device Level Sensor for Dielectric Error Correction
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Solution Overview
Problem
Existing aerosol-generating devices face challenges in accurately detecting the remaining amount of liquid aerosol-generating material due to variations in the dielectric constant of the liquid, leading to errors in detection results.
Innovation Solution
The device incorporates a conductive member with multiple conductive regions and a level sensor that applies current to measure voltage variations to accurately sense the liquid level, using a processor to correct detection results and improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a level sensor is used to detect the remaining amount of liquid aerosol-generating material, then the detection function is provided, but errors occur in the detection result due to variations in the dielectric constant of the liquid
Solution Approach 1:
The conductive member is divided into multiple conductive regions (first conductive region and second conductive region) that are spatially separated. Each region independently detects the liquid level, and the processor combines these segmented detection results to correct errors caused by dielectric constant variations, thereby improving measurement precision and reliability.
Solution Approach 2:
The processor receives detection results from multiple conductive regions and uses feedback mechanisms to correct the level sensor readings. By comparing and analyzing the detection results from different regions, the system adjusts the final measurement to compensate for errors introduced by dielectric constant variations, ensuring accurate liquid level detection.
2Measurement precision
If multiple conductive regions are used to improve detection accuracy, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The conductive member with multiple conductive regions serves multiple functions: it acts as both the level detection element and the electrical conductor for the sensor. The same structural component (conductive member) performs both conduction and detection roles, reducing the need for separate components and thereby limiting the increase in device complexity while improving measurement precision.
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
Enhances the detection accuracy of the remaining liquid aerosol-generating material by correcting sensor readings, ensuring precise operation and user feedback.
Implementation Method 1
the level sensor is configured to sense the amount of the liquid aerosol-generating material by applying current to the conductive member and measuring a voltage value that varies depending on a capacity of the liquid aerosol-generating material
Implementation Method 2
the level sensor is configured to sense the amount of the liquid aerosol-generating material by applying current to the conductive member and measuring a voltage value that varies depending on a capacity of the liquid aerosol-generating material
Data Source
AI summary
A method and apparatus are provided. An aerosol-generating device includes a chamber configured to store a liquid aerosol-generating material, a main body including a partition wall facing the chamber, a conductive member provided on one surface of the chamber facing the partition wall, and a level sensor configured to sense an amount of the liquid aerosol-generating material stored in the chamber, in which the level sensor is configured to sense the amount of the liquid aerosol-generating material by applying current to the conductive member and measuring a voltage value that varies depending on a capacity of the liquid aerosol-generating material.