Radiation Basis Weight Gauging for Accurate Coating Measurement

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Solution Overview

Problem

Existing radiation basis weight gauges face inaccuracies in measuring the basis weight of coating materials due to differing correction factors between base and coating materials, especially when the atomic weights of the materials are significantly different, leading to incorrect calculations of coating material changes.

Innovation Solution

A system and method using x-ray and/or beta radiation basis weight gauges to determine the coating material's corrected basis weight by calculating the difference between coated and base material uncorrected basis weights and applying specific correction factors, including a coating material correction factor determined through x-ray computer modeling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single correction factor is used for both base material and coating material measurements, then the measurement process is simplified, but measurement precision deteriorates when atomic weights of materials are significantly different

Engineering Contradiction:

Improvecorrection factor applicationVSAvoidcoating material basis weight

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent divides the correction factor application into two separate segments: one correction factor for base material measurements and another correction factor for coating material measurements. This segmentation allows each material type to be corrected according to its specific atomic weight characteristics, resolving the contradiction between simplified process and accurate measurement.

Inventive Principle:

Principle #1Segmentation

2Productivity

If radiation basis weight gauge measures coated material directly, then measurement speed is improved, but measurement precision deteriorates due to inability to distinguish base material from coating material

Engineering Contradiction:

Improvemeasurement speedVSAvoidcoating material basis weight

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent extracts the base material weight component from the total coated material measurement by applying a correction factor derived from base material characteristics. This extraction isolates the coating material weight, enabling both rapid measurement and precise differentiation between base material and coating material contributions.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces correction factors as intermediary elements that mediate between the raw radiation measurement and the final coating material basis weight calculation. These correction factors, determined from separate base material and coating material measurements, enable accurate decomposition of the composite measurement while maintaining measurement speed.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Measurement precision

If correction factors are determined separately for base material and coating material, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improvecoating material basis weightVSAvoidcorrection factor determination

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent performs preliminary determination of correction factors for both base material and coating material before actual coating material measurements. This preliminary action stores the correction factors for rapid application during production, eliminating the need for complex real-time calculations and reducing operational complexity while maintaining high measurement precision.

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

Accurately determines the coating material's basis weight, enhancing operational efficiency and safety while minimizing waste and costs by ensuring uniform coating application.

Implementation Method 1

utilizing x-ray and/or beta radiation basis weight gauges

Methodology Applied

Scientific EffectX-ray radiation: X-Ray

Implementation Method 2

utilizing x-ray and/or beta radiation basis weight gauges

Methodology Applied

Scientific EffectBeta radiation: Radiation

Implementation Method 3

determine a coated material uncorrected basis weight, based on a number of the measurement particles received at a radiation detector

Methodology Applied

Scientific EffectRadiation absorption: Absorption (EM radiation)

Data Source

PatentUS20250383306A1System and method for utilizing a radiation basis weight gauge to determine a basis weight of a coating material

Publication Date: 2025.12.18 HONEYWELL INTERNATIONAL INC

AI summary

An example system, computer-implemented method, and computer program product for determining a basis weight of a coating material on a base material using radiation basis weight gauges is provided. An example system includes a radiation basis weight gauge and a controller. The radiation basis weight gauge is configured to direct measurement particles at a coated material, the coated material including a base material and a coating material, and determine a coated material uncorrected basis weight, based on a number of the measurement particles received at a radiation detector. The controller is configured to determine a base material uncorrected basis weight based on a base material corrected basis weight. The controller is further configured to use a coating material correction factor a determine the basis weight of the coating material based on a difference between the coated material uncorrected basis weight and the base material uncorrected basis weight.