Metrology Device for Wooden Pole Quality Assessment
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Solution Overview
Problem
Existing methods for assessing the quality of wooden poles, such as resistograph technology and FR 2 707 759, are limited in providing direct structural performance and safety diagnostics, unable to detect weak fibers or estimate remaining service life, and are cumbersome due to manual strapping requirements.
Innovation Solution
A metrology device with a frame, support element, and tips that measure penetration effort and electrical resistivity, featuring motorized movement and energy independence, allowing for precise and efficient assessment of wooden poles without the need for manual strapping, and enabling estimation of safety status and remaining working life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual strapping and frame attachment is used to secure the device to the pole, then the device can be positioned and stabilized, but the inspection process becomes time-consuming and cumbersome
Solution Approach 1:
The invention extracts the strapping and frame attachment mechanism from the inspection process. Instead of manually strapping the pole and attaching a frame, the device uses a self-contained probe system that directly penetrates the pole material without requiring external support structures or manual strapping operations.
Solution Approach 2:
The device performs self-positioning and self-stabilization through its probe mechanism. The probe automatically penetrates the pole material and establishes measurement points without requiring manual frame attachment or external support, making the system self-sufficient and eliminating time-consuming manual operations.
2Measurement precision
If resistograph technology is used to measure wood density, then pockets of decay can be detected, but the method cannot provide direct diagnosis of residual structural performance or safety
Solution Approach 1:
The invention merges multiple measurement functions into a single integrated device. It combines density measurement (resistograph functionality), electrical resistivity measurement, and penetration effort measurement into one system that simultaneously provides information about decay, fiber quality, and structural performance.
Solution Approach 2:
The device performs multiple functions: it measures density to detect decay, measures electrical resistivity to assess moisture content and fiber quality, and measures penetration effort to evaluate structural strength. This multi-functional approach eliminates the need for separate inspection methods and provides comprehensive structural assessment.
3Loss of information
If multiple separate measurement methods are used to assess pole quality, then comprehensive information can be gathered, but the inspection process becomes complex and time-consuming
Solution Approach 1:
The invention consolidates multiple separate measurement methods (density measurement, electrical resistivity measurement, penetration effort measurement) into a single integrated device and procedure. This unified approach gathers comprehensive quality information while simplifying the inspection process and reducing procedural complexity.
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
Improves measurement precision and efficiency, allowing for accurate assessment of wooden poles' quality and safety status, reducing operator effort, and enabling quick estimation of remaining working life, while being portable and adaptable to various pole positions.
Implementation Method 1
means for measuring a penetration effort of each tip as a function of a force applied to each tip in order to reach a predetermined distance
Implementation Method 2
means of measuring an electrical resistivity between the ends of the two tips, which means are capable of measuring an electrical resistivity of the hygroscopic material when the two tips are inserted into the hygroscopic material
Data Source
AI summary
The invention relates to a metrology device for determining the quality of a hygroscopic material. The metrology device includes a frame, a support element, two tips that can move in translation with respect to the frame, means for measuring a penetration effort of each tip as a function of a force applied to each tip, means for measuring an electrical resistivity between the ends of the two tips, which means are able to measure an electrical resistivity of the hygroscopic material when the two tips are inserted into the hygroscopic material, and means for measuring a penetration effort of the support element as a function of a force applied to the support element in order to achieve a predetermined fixing position. The support element is adapted to penetrate into the hygroscopic material so as to fix the frame to the hygroscopic material.