Novel equipment for the measurement of core losses in laminations for advanced machines
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Bibliographic record
Abstract
This paper presents a novel state of the art equipment for core loss measurements under high frequency and non-sinusoidal excitations. Sinusoidal high frequency measurements are performed using a commercial test system especially designed for high frequency testing. Comparative measurements are performed over a wide range of frequencies using the three standardized testers; Epstein frame, toroid tester and single sheet tester. Discrepancies in the results obtained from the three testers are shown and analyzed. A test bench is also developed to carry out core loss measurements under non-sinusoidal excitations. Specific core losses at different parts of a permanent magnet motor are predicted by generating the motor flux waveforms in motor laminations using the Epstein frame. The results show a significant increase in the specific core loss in the stator tooth of the machine.
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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 | 0.000 | 0.000 |
| 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 | 0.000 |
| 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 it