Corrosion Test Specimen Gauge Recesses for Fast Dimensional Verification
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Solution Overview
Problem
Manual measurement of corrosion test specimen dimensions using calipers is tedious and time-consuming, leading to measurement errors that affect the accuracy of corrosion testing, as the dimensions often do not comply with testing protocol tolerances.
Innovation Solution
A dimension verification gauge with gauge recesses of specific sizes corresponding to minimum and maximum dimensions of corrosion test specimens is used to efficiently and accurately verify the physical dimensions of test specimens, such as metallic strips and cylinders, by observing the fit of the specimen into the recesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement using calipers is used to verify test specimen dimensions, then measurement capability is achieved, but measurement time increases and measurement errors occur
Solution Approach 1:
The patent replaces the mechanical caliper measurement system with an optical imaging system using a camera and image processing algorithms. The gauge takes a photograph of the test specimen and automatically processes the image to determine dimensions, substituting manual mechanical measurement with automated optical measurement. This eliminates the time-consuming manual operation while maintaining or improving measurement precision through digital image analysis.
2Measurement precision
If manual measurement using calipers is used to verify test specimen dimensions, then measurement capability is achieved, but measurement errors increase
Solution Approach 1:
The system provides visual feedback through captured images and automated dimension calculations. The camera captures the specimen, the system processes the image to measure dimensions, and compares them against specification ranges. This closed-loop feedback mechanism eliminates human error by automatically detecting and reporting dimensional deviations, ensuring consistent and reliable measurements across all test specimens.
Solution Approach 2:
The system creates a digital copy (photograph) of the test specimen and performs measurements on this copy rather than requiring direct physical contact with the specimen. This digital copying approach eliminates measurement errors introduced by manual caliper operation while preserving the ability to accurately determine specimen dimensions through image processing.
3Productivity
If repeated cleaning and preparation of test specimens is performed, then test specimen reusability is achieved, but physical dimensions of the test specimen change
Solution Approach 1:
The system performs preliminary dimensional verification before the test specimen is used in corrosion testing. By measuring and recording the dimensions of the specimen prior to its use, the system establishes a baseline that accounts for any dimensional changes that may occur during cleaning and preparation between uses. This preliminary measurement ensures that even if dimensions change slightly during reuse, the system can detect and account for these variations.
Data Source
AI summary
An embodiment of a dimension verification gauge and related methods to enhance dimensional verification of a corrosion test specimen, may include a gauge body at least partially defining a gauge body outer surface. The dimension verification gauge further may include one or more gauge recesses in the gauge body outer surface. The one or more gauge recesses may have (a) a recess perimeter at least partially defining a recess opening and (b) a recess depth. One or more of (a) the recess perimeter or (b) the recess depth, may have a size corresponding to one of a minimum dimension or a maximum dimension, and the one or more of the minimum dimension or the maximum dimension may correspond to a predetermined dimension specification for the corrosion test specimen. A method for verifying dimensions of a corrosion test specimen may include observing a relative fit between a corrosion test specimen and a gauge recess.