New PLL based signal conditioning circuitry for capacitive sensors
Bibliographic record
Abstract
This paper presents a new capacitive signal-conditioning interface, employing a Phase Locked Loop (PLL) circuit. The entire circuit design is based on the principle of capacitance-frequency-voltage conversion. The CD4046 digital phase-locked loop (Fairchild Semiconductor) was used for the circuit implementation since it offers approximately 1% linearity, which is suitable for most applications [1]. The functional sensor material used was Polyvinylidene Fluoride (PVDF) and this was mixed with 7wt.% Ethyl Cellulose and 1wt.% Lecithin. Terpinol-α was used as the solvent to form the thick film paste. The circuit sensitivity has been tested with the developed thick film sensor in terms of output circuit voltage versus capacitance change. It was found that the developed circuit has lower power consumption when compared to standard frequency-to-voltage converter configurations.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.003 |
| 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".