Capacitance devices for the generation of airborne ultrasonic fields
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The beam profiles of conventional capacitive air transducers are presented at frequencies up to 1.5 MHz and are shown to be highly non-uniform, as is the case in water. In attempting to remedy this problem, a new capacitive air transducer is fabricated using a micromachined silicon backplate and a commercially available thin metallized Kapton film. The results of a characterization of this new device are presented. They indicate a transducer which is wideband, reversible, and possibly more sensitive in generation and detection than a typical lead zirconate titanate (PZT) air-coupled transducer. The usefulness of this new device as an effective noncontact transducer is demonstrated through the successful detection of airborne ultrasonic waves generated by a Lamb mode propagating in a carbon fiber reinforced polymer plate, and by surface breaking bulk waves propagating in brass.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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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