Miniature Tensile Stage For Fibre Testing in XRD
Bibliographic record
Abstract
Composites Innovation Centre (CIC), a company based in Winnipeg, Manitoba, Canada, uses X-ray diffractometry (XRD) and tensile testing separately to evaluate different fibres and observe if they are usable in composite materials. In order to increase efficiency and view how the molecular structure of the fibre changes as force is applied, it is ideal to combine the two tests within the XRD machine. Approaching this problem requires an assessment on the size constraints imposed by the XRD, as well as the precision required from the test. This report provides both the necessary background information and presents a final design for such a system with recommendations to proceed forward. The final design consists of two purchased components, the LP512 load cell from Cooper Instruments & Systems which costs $795 and the PQ12 Micro Linear Actuator from Firgelli Technologies Inc. which costs $65. Four fastener components which are the two M3 Machine Screws, one 40 mm and one 20 mm, along with twoM3 Nylock Nuts are required with an expected cost of approximately $6. The remaining three components are 3-D printed from ABS plastic. They are a base mount, a lower tab slot, and an upper support with a tab slot. The base consists of a hole with a cover to insert the load cell into. The lower tab slot threads onto the load cell, securing it to the base while providing a point of load application. The linear actuator inserts into another hole in the base, and is secured via the 40 mm screw and nut. The upper support and slot is secured to the actuator via the 20 mm and nut. The total cost in time, labour, and materials for these three parts is expected to be approximately $50. A Personal Daq/54 by Measurement Computing is recommended as a possible solution for data acquisition. This final design has dimensions of 23 mm×49 mm×40 mm width, height, and depth respectively, and has been tested to fit within the XRD machine. The total cost of the chosen components is approximately $919.98, with an additional $829.00 for a recommended data acquisition module […]
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.005 |
| Meta-epidemiology (narrow) | 0.001 | 0.002 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.071 | 0.018 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".