Blower-Mixed Fog Formation for Uniform Subject Visibility

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Solution Overview

Problem

Existing fog environment forming apparatuses suffer from uneven density distribution of fog around the subject area, leading to inconsistencies in visibility.

Innovation Solution

A fog environment forming apparatus that includes a spraying portion to discharge atomized water and a blower to mix and circulate air containing the atomized water, ensuring uniform distribution of fog density by controlling the airflow direction and circulation between chambers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If multiple nozzles are used to spray atomized water in the test chamber, then fog generation capability is improved, but unevenness in fog density around the subject area occurs

Engineering Contradiction:

Improvefog generation capabilityVSAvoidfog density uniformity

Core Design Contradiction:

Quantity of substanceVSManufacturing precision

Solution Approach 1:

The patent introduces a blower as an intermediary device between the nozzle and the subject area. The blower mixes the atomized water with air and actively transports the fog toward the subject area, ensuring uniform distribution. This mediator resolves the contradiction by preventing direct, uncontrolled spray deposition that causes density unevenness while maintaining adequate fog generation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent utilizes pneumatic principles by employing a blower to generate airflow that carries and distributes the atomized water particles. The air stream acts as a carrier fluid, enabling controlled and uniform fog distribution around the subject area, thereby achieving both adequate fog quantity and uniform density.

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Ease of manufacture

If atomized water is directly sprayed in the test chamber, then fog environment is formed, but uneven density distribution occurs around the subject area

Engineering Contradiction:

Improvefog environment formationVSAvoidfog density distribution

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The blower serves as an intermediary that receives atomized water and redistributes it uniformly around the subject area. This intermediate step transforms the direct spray process into a controlled distribution process, maintaining ease of manufacture while achieving precise and uniform fog density distribution.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical state and distribution parameters of the atomized water by introducing it into an air stream generated by the blower. This parameter change from direct liquid spray to air-carried mist enables uniform distribution around the subject area while maintaining the simplicity of the fog generation process.

Inventive Principle:

Principle #35Parameter changes

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 apparatus effectively suppresses uneven fog density around the subject area, maintaining consistent visibility and reducing fluctuations in moisture content, thereby enhancing the reliability of visibility measurement.

Implementation Method 1

a spraying portion (12) configured to discharge atomized water for forming a fog environment

Methodology Applied

Scientific EffectAtomization:

Implementation Method 2

a blower (15) configured to mix air containing the atomized water discharged from the spraying portion (12)

Methodology Applied

Scientific EffectFluid mixing:

Implementation Method 3

cause the air containing the water suctioned to flow out toward a subject or a subject area while mixing the air

Methodology Applied

Scientific EffectForced convection: Forced Convection

Data Source

PatentUS20250303321A1Fog environment forming apparatus and fog environment forming method

Publication Date: 2025.10.02 ESPEC CORP

AI summary

A fog environment forming apparatus includes a spraying portion that discharges atomized water for forming a fog environment, and a blower that suctions air containing the atomized water discharged from the spraying portion and causes the air containing the suctioned water to flow out toward a subject while mixing the air. The blower is configured to cause the mixed air to flow out toward the subject within a height range of the subject.