E-Liquid Impedance Sensing for Real-Time Nicotine Detection
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Solution Overview
Problem
Conventional methods for detecting nicotine content in e-liquids are complex, time-consuming, and require multiple instruments, making real-time detection in electronic atomizing devices challenging, especially for self-fillable cartridges and atomizers.
Innovation Solution
A system and method using a sampling circuit to acquire characteristic parameters, calculating the impedance of the e-liquid, and a controller to determine nicotine content based on a preset corresponding relation, allowing for real-time detection without complex equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional nicotine detecting methods (chromatography, spectroscopy, photometry, gravimetry, titration analysis) are used, then measurement precision can be achieved, but device complexity and time consumption increase significantly
Solution Approach 1:
The patent replaces complex chemical analysis systems (chromatography, spectroscopy) with a simple electrical impedance detection system. By measuring the impedance of e-liquid directly through electrodes and correlating it with nicotine content, the system achieves accurate measurement without requiring complex instrumentation, thus resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent changes the detection parameter from direct chemical analysis to electrical impedance measurement. By establishing a correlation between e-liquid impedance and nicotine content, the system transforms a complex chemical measurement problem into a simple electrical property measurement, reducing device complexity while maintaining measurement capability
2Measurement precision
If conventional nicotine detecting methods are used, then accurate nicotine content can be determined, but detection time becomes excessive for real-time detection
Solution Approach 1:
The patent replaces time-consuming chemical analysis methods with instantaneous electrical impedance measurement. The impedance of e-liquid can be measured in real-time without sample preparation or complex instrumentation, enabling accurate nicotine content determination within seconds rather than hours, thus resolving the time loss contradiction
Solution Approach 2:
The detection system utilizes the inherent electrical properties of the e-liquid itself for self-characterization. By measuring impedance directly in the e-liquid without requiring external reagents or complex setup, the system achieves rapid detection that is suitable for real-time monitoring applications
3Measurement precision
If multiple instruments are used for nicotine detection, then comprehensive analysis can be performed, but ease of operation deteriorates due to professional expertise requirements
Solution Approach 1:
The patent merges multiple complex detection functions into a single integrated impedance measurement system. By combining electrode, signal generator, and measurement circuitry into one device that simply measures electrical impedance, the system eliminates the need for multiple separate instruments and professional operation skills, thus resolving the contradiction between detection accuracy and ease of operation
Solution Approach 2:
The patent substitutes complex chemical analysis instrumentation with a simple electrical measurement device. The impedance measurement system requires only basic electrical components and can be operated without specialized chemical knowledge, making the detection process accessible to non-experts while maintaining accurate nicotine content determination
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
Enables rapid, accurate, and real-time nicotine content detection in e-liquids, applicable to electronic atomizing devices, reducing the need for sophisticated instrumentation and facilitating compliance with regional regulations.
Implementation Method 1
a sampling circuit configured to acquire characteristic parameters, and the characteristic parameters being configured to calculate an impedance of the e-liquid
Data Source
AI summary
The present disclosure relates to a system, a method, a device, and an electronic atomizing device for detecting a nicotine content in an e-liquid. The system includes: a sampling circuit configured to acquire characteristic parameters, and the characteristic parameters being configured to calculate an impedance of the e-liquid in an e-liquid containing component; and a controller electrically connected to the sampling circuit, configured to calculate the impedance of the e-liquid according to the characteristic parameters fed back by the sampling circuit, and determine the nicotine content in the e-liquid according to the impedance of the e-liquid and a preset corresponding relation between the impedance and the nicotine content.