LONG-PERIOD GRATING AS STRAIN SENSOR
Bibliographic record
Abstract
In this work, fabrication and demonstration of a strain sensitive long-period grating (LPG) sensor is discussed. Equally spaced inscription LPG has been fabricated in germanium doped silica (Ge-SiO2) single-mode optical fibre. In the fabrication process amplitude mask approach was employed and KrF excimer laser with 248 nm wavelength has been used for inducing index modulation in the core of fibre. On a single mode fibre, uniform LPG of period 95 μm and 30 mm grating length has been inscribed and subsequently was used as a strain sensor to monitor the strain up to 7000 μ. Sensitivity of this sensor is found to be 0.931 nm/1000 μ whereas for standard fibre Bragg grating, it is 1.2 nm/1000 μ.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".