Aerosol Device Flow Rate Sensor Fluid Authentication
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Solution Overview
Problem
Aerosol generating devices lack effective safety features to prevent the use of harmful or unauthorized aerosol fluids, and existing technologies do not reliably authenticate the authenticity of aerosol generating fluids.
Innovation Solution
An aerosol generating device equipped with a heater to preheat the aerosol forming fluid to a predetermined temperature, a flow rate sensor to measure the fluid's flow rate, and a controller to enable or disable aerosol generation based on the measured flow rate, ensuring the fluid meets safety criteria, thereby enhancing security and preventing unauthorized fluid use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flow rate sensor is added to measure fluid flow rate for safety authentication, then the security and reliability of the device is improved, but the device complexity increases
Solution Approach 1:
The heater pre-heats the aerosol forming fluid to a predetermined temperature before the flow rate measurement is taken. This preliminary heating action ensures that the fluid is at a controlled temperature state when measured by the flow rate sensor, eliminating temperature variations as a confounding factor and enabling reliable authentication of authorized fluids based solely on flow rate characteristics.
2Measurement precision
If the fluid is heated to a predetermined temperature before measurement, then the measurement reliability is improved, but the energy consumption increases
Solution Approach 1:
The heater pre-heats the aerosol forming fluid to a predetermined temperature before the flow rate measurement is taken. This preliminary heating action ensures that the fluid is at a controlled temperature state when measured by the flow rate sensor, eliminating temperature variations as a confounding factor and enabling reliable authentication of authorized fluids based solely on flow rate characteristics.
3Stability of the object's composition
If a pump is used to deliver the aerosol forming fluid, then the fluid delivery stability is improved, but the device complexity increases
Solution Approach 1:
The pump is configured to operate at a fixed pumping power, allowing the system to deliver fluid at a stable, predetermined flow rate without requiring complex active control mechanisms. The fixed pumping power creates a self-regulating system where the flow rate is inherently stable, eliminating the need for additional flow control sensors or actuators.
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 effectively authenticates authorized aerosol fluids by measuring their flow rate at a predetermined temperature, preventing the use of counterfeit or harmful substances and ensuring safe operation, while also providing a cost-effective and reliable method for fluid verification.
Implementation Method 1
a heater configured to heat an aerosol forming fluid to a predetermined temperature
Implementation Method 2
a sensor configured to measure a parameter which is related to the flow rate of the heated aerosol forming fluid
Implementation Method 3
the aerosol generating device comprises a pump configured to pump the aerosol forming fluid
Implementation Method 4
a heater configured to heat a portion of the aerosol generating fluid which is upstream of the flow rate sensor to the predetermined temperature
Data Source
AI summary
An aerosol generating device configured to generate an aerosol for inhalation by a user includes: a heater configured to heat an aerosol forming fluid to a predetermined temperature; a sensor configured to measure a parameter which is related to the flow rate of the heated aerosol forming fluid; and a controller configured to enable or disable the generation of an aerosol based on the measured parameter.