Gas Concentration Measurement Device with Vibrating Membrane
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Solution Overview
Problem
Existing gas concentration measurement devices for dissolved gases in water are large and inefficient, requiring pumps and tanks, and struggle to quickly measure gas concentrations.
Innovation Solution
A compact gas concentration measurement device featuring a waterproof housing with a gas permeable membrane that allows gas passage while blocking moisture, and a driving body that vibrates the membrane to achieve rapid vapor-liquid equilibrium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pump and tank system is used to circulate seawater, then the gas concentration can be measured, but the device size increases
Solution Approach 1:
The invention extracts and eliminates the pump and tank components from the conventional system, retaining only the essential measurement function. The measurement device consists of a housing with a gas-permeable membrane that directly contacts the seawater, removing the need for complex circulation systems while maintaining measurement capability.
Solution Approach 2:
The gas-permeable membrane automatically allows gas to pass through from the seawater into the housing without requiring external pumping or circulation systems. The system self-regulates gas exchange based on concentration gradients, eliminating the need for mechanical pumps and large tanks.
2Measurement precision
If a pump and tank system is used to circulate seawater, then the gas concentration can be measured, but the measurement time increases
Solution Approach 1:
The invention introduces a vibration mechanism that agitates the gas-permeable membrane, enhancing the rate of gas exchange between the seawater and the housing interior. This vibration-induced mass transfer acceleration allows the system to reach measurement-ready state much faster than passive diffusion in conventional systems.
Solution Approach 2:
The system transitions from a static gas exchange interface to a dynamic one through membrane vibration. The vibrating membrane continuously renewes the contact between seawater and the measurement chamber, maintaining high rates of gas transfer and enabling rapid measurement responses.
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 device enables quick and easy measurement of gas concentrations in water without the need for pumps or tanks, achieving a significant reduction in size and measurement time.
Implementation Method 1
a gas permeable membrane covering the opening, the gas permeable membrane allowing passage of the gas and substantially blocking passage of moisture
Implementation Method 2
a driving body constructed to vibrate the gas permeable membrane
Implementation Method 3
gas dissolved in moisture is movable into the internal space of the housing through the gas permeable membrane, so that a gas equilibrium state (vapor-liquid equilibrium state) can be reached
Data Source
AI summary
A gas concentration measurement device that includes: a waterproof housing including a wall that defines an internal space, the wall including an opening communicating between the internal space and an outside of the housing; a measurement instrument in the internal space, the measurement instrument constructed to measure a concentration of a gas; a gas permeable membrane covering the opening, the gas permeable membrane allowing passage of the gas and substantially blocking passage of moisture; and a driving body constructed to vibrate the gas permeable membrane.