Robotic Coating Applicator Evaluation With Force-Torque Sensing
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Solution Overview
Problem
Existing methods for evaluating coating compositions and applicators are subjective and prone to variations due to user inconsistency, fatigue, and composition characteristics, lacking an objective and repeatable evaluation system.
Innovation Solution
A system comprising a test bed, controlled sensing arm, sensor, and analyzer that quantifies coating composition and applicator properties through pre-programmed movements, measuring force, torque, and other parameters to provide objective and repeatable evaluations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual evaluation by individual users is used, then the evaluation process is simple and easy to implement, but the results are subjective and inconsistent due to user variation and fatigue
Solution Approach 1:
The patent replaces the manual mechanical evaluation system with an automated robotic arm system equipped with sensors. The robotic arm applies coating compositions with controlled force and movement, eliminating human subjectivity and fatigue. Sensors measure application characteristics objectively, transforming subjective human evaluation into precise mechanical measurement.
Solution Approach 2:
The patent introduces a robotic arm as an intermediary between the evaluator and the coating application process. This intermediary performs the physical application task with consistent, programmable movements while sensors act as intermediaries to capture measurement data, separating the evaluation function from human operators.
2Reliability
If automated robotic system is used, then objective and repeatable measurements are achieved, but the system complexity and cost increase
Solution Approach 1:
The robotic arm system is designed to perform multiple evaluation functions: applying coating compositions, measuring application force, tracking movement characteristics, and collecting data across different coating types and applicators. This multi-functionality justifies the initial complexity by providing a universal platform for all evaluation needs.
Solution Approach 2:
The system incorporates sensors that provide real-time feedback on application characteristics such as force, torque, and movement. This feedback loop enables precise control and measurement, ensuring repeatable results while allowing the system to self-correct and maintain consistency across multiple evaluations.
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 consistent and unbiased comparison of coating compositions and applicators by quantifying application characteristics independent of human variation, allowing for precise formulation and design adjustments.
Implementation Method 1
a sensor capable of measuring force, torque, or combinations thereof, the sensor coupled to the extender and the coating composition applicator
Data Source
AI summary
A system for deriving quantitative application characteristics of a coating composition or applicator independent of human application variation. The system comprises a test bed, a substrate, a rigid frame, a torque or force sensor coupled to an extender with a coating composition applicator, a controller, and an analyzer. The controller directs the extender to apply the coating composition to the substrate or test bed by moving according to a pre-programmed movement routine. The analyzer uses data recorded from the sensor to determine quantitative application characteristics of the coating composition or applicator.