Nozzle Spray Width Measurement Using Cylinder Wall Light Sensing

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Solution Overview

Problem

Current methods for measuring nozzle parameters, such as spraying width, are inaccurate due to expansion of the spraying diameter caused by high-pressure gas and delays in signal transmission, which affect the precision of digital twin system simulations.

Innovation Solution

A nozzle parameter measuring device that projects the spraying width onto a lateral horizontal plane, using a hollow cylinder with a light sensor to detect the coating material's coverage time, allowing for accurate calculation of spraying width and delay time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the overhead projection measuring method is used to measure spraying width, then the measurement process is simple, but the measurement precision deteriorates due to diameter expansion caused by high-pressure gas and spraying time delays

Engineering Contradiction:

Improvemeasurement process simplicityVSAvoidspraying width measurement accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent transitions from measuring spraying width on a horizontal reference plane (overhead projection) to measuring on a vertical inner wall of the hollow cylinder. This dimensional change allows the coating material to be deposited in a controlled vertical path, preventing the diameter expansion issue caused by high-pressure gas and airflow pushing the material outward on horizontal surfaces.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The hollow cylinder serves as an intermediary structure between the nozzle and the measurement system. By using the inner wall of the hollow cylinder as the measurement surface, the patent creates a controlled environment that prevents direct interaction between the high-pressure gas and the measurement reference, thereby eliminating the diameter expansion problem while maintaining measurement simplicity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the overhead projection measuring method is used, then the measurement setup is straightforward, but the measurement precision deteriorates due to signal transmission delays and pipeline conditions

Engineering Contradiction:

Improvemeasurement setup simplicityVSAvoidspraying parameter accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent incorporates a light sensor that detects the coating material's coverage time in advance, allowing the system to measure the actual spraying moment rather than relying on delayed signal transmission. This preliminary detection action eliminates the impact of signal transmission delays and pipeline conditions on measurement precision.

Inventive Principle:

Principle #10Preliminary action

3Quantity of substance

If continuous spraying is performed to obtain sufficient data, then the measurement completeness improves, but the measurement precision deteriorates due to diameter expansion over time

Engineering Contradiction:

Improvemeasurement data sufficiencyVSAvoidspraying width accuracy

Core Design Contradiction:

Quantity of substanceVSMeasurement precision

Solution Approach 1:

The patent uses periodic detection with the light sensor to measure the coating material's coverage at specific intervals as it travels down the hollow cylinder's inner wall. This periodic action allows sufficient data collection while maintaining measurement precision by detecting the spraying width at controlled time points before diameter expansion occurs.

Inventive Principle:

Principle #19Periodic 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 precise measurement of spraying width and delay time, leading to a more accurate spraying behavior model for digital twin systems, enhancing predictability and simulation accuracy.

Implementation Method 1

a sensing part, disposed relative to the fourth side and having a light sensor disposed directly facing a direction of the nozzle, wherein the light sensor is configured for detecting a covering time when an emitted light is covered by the coating material

Methodology Applied

Scientific EffectLight coverage detection: Absorption (EM radiation)

Data Source

PatentUS20250375785A1Nozzle parameter measuring device, measuring method, and measuring system for using the same

Publication Date: 2025.12.11 DELTA ELECTRONICS INC(CN)

AI summary

A nozzle parameter measuring device is used for measuring a spraying width of a nozzle to be measured when the nozzle sprays a coating material and includes a connection part, a measuring kit, and a sensing part. The connection part is connected to the nozzle and the measuring kit. The measuring kit is a hollow cylinder with an inner wall. The nozzle sprays a coating material toward the inside of the measuring kit so that the coating material is coated on the inner wall of the measuring kit. The sensing part is connected to another side of the measuring kit relative to the connection part and has a light sensor disposed in the direction of the nozzle. The light sensor is configured for detecting a time when an emitted light being covered, and a spraying width of the nozzle is calculated.