Testing Paper Gas Detection with Controlled Flow for Accurate NO Measurement
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Solution Overview
Problem
Existing devices for monitoring respiratory gases like nitric oxide (NO) gas lack ease of sample collection, accuracy in concentration detection, and require external interference, failing to provide reliable monitoring of NO gas levels which can impact human health.
Innovation Solution
A detecting device comprising a housing with a testing chamber, a pressing block, and a detector that uses a testing paper to change color based on gas concentration, facilitated by a pump and illuminating device to determine NO gas levels accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional external interference methods are used for gas concentration detection, then measurement can be performed, but device complexity and ease of operation are worsened
Solution Approach 1:
The testing paper automatically changes color when exposed to the target gas, eliminating the need for external interference or complex operational steps. The system performs self-detection where the chemical reaction on the paper surface directly indicates gas concentration without requiring additional instruments or procedures.
Solution Approach 2:
The patent extracts the detection function from complex external devices and concentrates it into a simple testing paper module. By removing unnecessary external interference mechanisms and retaining only the essential color-change reaction, the system achieves both simplicity and accuracy.
2Ease of operation
If testing paper is used for gas detection, then ease of operation is improved, but measurement precision is worsened due to lack of controlled gas flow
Solution Approach 1:
The pressing block serves as an intermediary component that introduces controlled gas flow between the testing chamber and the testing paper. This mediator ensures that the gas reaches the testing paper in a controlled manner, improving measurement precision while maintaining the simplicity of the testing paper approach.
Solution Approach 2:
The patent incorporates pneumatic elements (pressing block with gas flow channels) to control the movement and distribution of gas across the testing paper surface. This pneumatic control ensures uniform and adequate gas exposure, enhancing detection accuracy without complicating the overall system.
3Measurement precision
If color change monitoring is implemented, then measurement precision is improved, but device complexity is worsened
Solution Approach 1:
The patent replaces complex mechanical or electronic detection systems with a simple optical detection approach. The detector captures color change information from the testing paper, and the controller processes this optical signal to determine gas concentration, substituting mechanical complexity with straightforward optoelectronic measurement.
Solution Approach 2:
The system utilizes the inherent color change property of the testing paper as the primary detection mechanism. By directly monitoring the color transformation through a simple detector and correlating it with gas concentration, the patent achieves precise measurement without requiring complex analytical instruments.
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 easy, fast, and accurate concentration detection of NO gas, allowing for regular monitoring without professional intervention, suitable for medical settings like hospitals and homes.
Implementation Method 1
The flow of the target gas facilitates penetrating the target gas through the at least testing paper and change color of the at least one testing paper
Implementation Method 2
at least one pump fluidly coupled to the pressing block via a second tube
Implementation Method 3
at least one illuminating device positioned in proximity to the at least one detector and coupled to the at least one controller. The at least one illuminating device is configured to illuminate the at least one testing paper
Implementation Method 4
at least one detector is configured to monitor the color change of the at least one testing paper
Data Source
AI summary
A system, method and device for determining concentration of a target gas. The system comprises a sensing chamber comprising at least one sampling bag configured to receive the target gas. Further, a testing paper module having at least one testing paper that is configured to change color based at least on concentration of the target gas. A detecting device operationally coupled to the sensing chamber, comprising a housing having at least one testing chamber configured to receive the testing paper module. Further, at least one controller is configured to facilitate flow of the target gas through the testing paper module by actuating at least one pump. The flow of the target gas facilitates color change of the at least one testing paper. Further, the concentration of the target gas is determined via at least one detector, based on color change of the at least one testing paper.