Leak Test Machine Calibration for Environmental Drift Compensation

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Solution Overview

Problem

Leak test machines in manufacturing lines are highly sensitive to environmental conditions, making manual calibration difficult and leading to inaccurate defect detection, which results in increased production costs due to defective or scrap workpieces.

Innovation Solution

A calibration system using sensors and a computing device to automatically adjust calibration settings for leak test machines based on real-time environmental data, employing machine learning to model the machine's behavior and compensate for environmental changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual calibration is performed by operators, then the leak test machine can be adjusted, but the calibration accuracy deteriorates due to difficulty in timely response to environmental changes

Engineering Contradiction:
Improvecalibration operationVSAvoiddefect detection accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The leak test machine performs self-calibration by automatically adjusting its own parameters based on environmental sensor data and predictive model outputs, eliminating the need for manual operator intervention and ensuring consistent calibration quality

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors environmental conditions through sensors and uses predictive models to determine calibration adjustments, creating a closed-loop feedback mechanism that automatically responds to environmental changes and maintains calibration accuracy

Inventive Principle:
Principle #23Feedback

2Measurement precision

If frequent manual calibration is performed to maintain accuracy, then defect detection precision improves, but productivity deteriorates due to time consumption

Engineering Contradiction:
Improvedefect detection accuracyVSAvoidmanufacturing throughput
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The predictive model continuously monitors environmental conditions and dynamically adjusts calibration parameters in real-time, eliminating the need for periodic manual calibration interruptions and maintaining continuous production throughput

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system replaces manual mechanical calibration operations with an automated computational approach using predictive models and software-controlled parameter adjustments, eliminating time-consuming manual intervention

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

3Productivity

If the leak test machine operates without calibration updates, then productivity is maintained, but measurement precision deteriorates leading to false defect detection

Engineering Contradiction:
Improvemanufacturing throughputVSAvoiddefect detection accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The calibration parameters are made dynamic rather than static, automatically adapting to changing environmental conditions through the predictive model, allowing the system to maintain both productivity and precision simultaneously

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4067855B1Systems and methods for calibrating a leak test machine for a manufacturing line
Publication Date: 2025.07.16 ATS CORPORATION
  • EP4067855B1 patent drawingFigure 1
  • EP4067855B1 patent drawingFigure 2~3
  • EP4067855B1 patent drawingFigure 4

AI summary

Systems and methods for calibrating a leak test machine for a manufacturing line are provided. The leak test machine is configured to detect leakage defects in workpieces produced by the manufacturing line. The method involves operating at least one processor to: receive, from the leak test machine, defect data; receive, from at least one sensor, environmental data; update at least one predictive model using the defect data and the environmental data; receive, from the at least one sensor, current environmental data; determine at least one calibration setting for the leak test machine based on the at least one predictive model and the current environmental data, the at least one calibration setting compensating for an effect of the at least one current environment condition on the leak test machine; and test, with the leak test machine using the at least one calibration setting, at least one workpiece.