Atmospheric Particle Detection via Inertial and Electrical Separation

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Solution Overview

Problem

Current methods for detecting biological and non-biological particles in the atmosphere are inefficient, requiring manual operations, separate sampling, and pre-treatments, and are limited to detecting particles larger than 10 μm, failing to effectively monitor fine particles under 10 μm which cause significant damage.

Innovation Solution

An apparatus comprising an impactor to sort particles by size, a charger to impart specific charges, and a separator using air flow and electric force to differentiate charged particles, allowing for real-time detection of biological and non-biological particles without manual operations, utilizing compressed air and corona discharge technology.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional single equipment is used to detect one pollutant, then detection capability for that specific pollutant is achieved, but device size becomes large, price increases, and portability is lost

Engineering Contradiction:
Improvedetection capabilityVSAvoiddevice size and portability
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple detection functions into a single integrated device that can simultaneously detect biological particles, non-biological particles, and various pollutants. The integrated device includes sampling components, charging components, separation components, and detection components that work together to perform multiple measurements without requiring separate equipment for each pollutant type.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The detection device is designed with universal functionality to detect multiple types of particles and pollutants using a single system. The device can detect viruses, bacteria, dust, pollen, and other particles through a unified platform that includes adaptable sampling and detection mechanisms, eliminating the need for specialized equipment for each pollutant type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If batch-type analysis with separate sampling and cultivation is used, then comprehensive particle analysis is achieved, but detection time extends over 24 hours and manual operations are required

Engineering Contradiction:
Improvecomprehensive particle analysisVSAvoiddetection speed and automation
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent implements continuous real-time detection that operates without interruption, eliminating the batch-type processing that requires 24 hours of cultivation time. The device continuously samples air, charges particles, separates them by type, and detects them automatically, providing ongoing monitoring capability rather than periodic batch analysis.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The detection device performs automatic sampling, charging, separation, and detection without requiring manual operations. The system self-regulates the sampling process, automatically charges particles using corona discharge, separates them through electrical fields, and detects them using sensors, eliminating the need for manual sampling and pre-treatment steps.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If conventional cultivation and dyeing methods are used, then microorganism detection is achieved, but direct atmospheric detection is impossible and series of manual operations are required

Engineering Contradiction:
Improvemicroorganism detection accuracyVSAvoidoperational simplicity and direct detection
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical operations with automated electronic and electrical systems. Instead of manual sampling, cultivation, and dyeing procedures, the device uses automated sampling mechanisms, electrical charging through corona discharge, electromagnetic separation fields, and electronic sensing to detect microorganisms directly from the atmosphere.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The device performs preliminary charging of particles through corona discharge before separation and detection, preparing the sample automatically without requiring manual pre-treatment. This preliminary action of charging particles enables subsequent automatic separation and direct detection, eliminating the need for cultivation and dyeing steps.

Inventive Principle:
Principle #10Preliminary action

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, real-time detection of particles in the atmosphere, eliminating the need for manual sampling and pre-treatments, and effectively differentiates between biological and non-biological particles by size and charge, improving detection efficiency and accuracy.

Implementation Method 1

an impactor adapted to sort the biological particles and non-biological particles absorbed from the outside by size

Methodology Applied
Scientific EffectInertial separation: Inertia

Implementation Method 2

a charger adapted to charge the biological particles and non-biological particles sorted by means of the impactor to specific charge (positive or negative charge)

Methodology Applied
Scientific EffectCorona discharge: Corona Discharge

Implementation Method 3

a separator adapted to introduce the biological particles and non-biological particles charged by the charger thereinto and to sort the biological particles and non-biological particles charged to different charge quantities from each other by using given air flow and electric force

Methodology Applied
Scientific EffectElectrophoresis: Electrophoresis

Data Source

PatentUS9726638B2Apparatus for in real time detecting biological particle and non-biological particle in the atmosphere and method for detecting biological particle and non-biological particle using the same
Publication Date: 2017.08.08 IND ACADEMIC COOP FOUND YONSEI UNIV
  • US9726638B2 patent drawing
  • US9726638B2 patent drawing
  • US9726638B2 patent drawing

AI summary

The present invention relates to apparatus for in real time detecting biological particles and non-biological particles in the atmosphere, the apparatus comprising: an impactor adapted to sort the biological particles and non-biological particles absorbed from the outside by size; a charger adapted to charge the biological particles and non-biological particles sorted by means of the impactor to specific charge (positive or negative charge); a separator adapted to introduce the biological particles and non-biological particles charged by the charger thereinto and to sort the biological particles and non-biological particles charged to different charge quantities from each other; and a particle measurement sensor adapted to measure the concentrations of the particles discharged from an outlet.