Particle Detecting Module Dehumidification and Portability
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Solution Overview
Problem
Conventional gas detecting modules are typically fixed-point and unable to measure suspended particle concentrations anywhere, and high humidity interferes with detection accuracy by increasing the volume of particles, leading to insufficient light transmittance and reduced detection efficiency.
Innovation Solution
A portable particle detecting module that inhales air, heats it to maintain a standard humidity level, and uses a one-way airflow system with dehumidification chambers and a sensor to accurately measure suspended particle concentrations, allowing for portable and efficient detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional gas detecting modules are used in fixed-point locations, then the device structure is simple, but the ability to measure suspended particle concentrations anywhere is lost
Solution Approach 1:
The device is divided into functionally independent modules: air guiding part with multiple storage chambers for dehumidification, detecting part with inlet/outlet compartments for particle detection, and actuator for air transport. This segmentation enables portable design while maintaining comprehensive functionality for suspended particle detection at various locations.
2Measurement precision
If air heating is performed to maintain standard humidity level, then detection accuracy is improved, but energy consumption increases
Solution Approach 1:
Air is heated and dehumidified in the storage chambers before entering the detection channel. This preliminary dehumidification removes water vapor that would otherwise interfere with particle detection, ensuring accurate measurements while allowing the system to operate efficiently at standard humidity levels.
3Measurement precision
If multiple storage chambers are used for dehumidification, then humidity control is improved, but device complexity increases
Solution Approach 1:
Multiple storage chambers are arranged in parallel and connected through airflow channels to form an integrated dehumidification system. The chambers work together to progressively remove moisture from air, achieving effective humidity control while sharing common structural elements and airflow paths to minimize overall device complexity.
4Reliability
If one-way airflow system is implemented, then detection reliability is improved, but device complexity increases
Solution Approach 1:
The airflow channels are designed with asymmetric cross-sectional areas and flow paths that naturally guide air in one direction from the air guiding part through the detection channel to the outlet compartment. This asymmetric design creates inherent flow directionality without requiring complex active control mechanisms, ensuring reliable unidirectional airflow for accurate detection.
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 module effectively maintains air humidity between 10% to 40%, enhancing detection efficiency and accuracy of suspended particle concentrations, enabling portable and timely measurements.
Implementation Method 1
the heating element heats the air within the corresponding storage chamber to dehumidify, water vapor generated by heating in the corresponding storage chamber is discharged out
Implementation Method 2
The actuator is disposed in the fine particle detecting base to control air to flow from the inlet compartment into the detecting channel, be transported to the outlet compartment through the communication opening
Data Source
AI summary
A particle detecting module is disclosed and includes a main body, which is consist of an air guiding part and a detecting part, by driving a plurality of heating elements disposed within a plurality of storage chambers of the air guiding part, air inside these storage chambers is heated and the moisture of the air is removed, and then the air is transported to the detecting part, so that a sensor of the detecting part could detect the sizes and the concentrations of the suspended particles, and the interference of the humidity is reduced.