Study and Design of MEMS Cross-Shaped Piezoelectric Vibration Energy Harvesters
Bibliographic record
Abstract
In this paper, a study and design of a cross-shaped piezoelectric vibration energy harvester is presented. The resonance frequency of the harvesters dictates the applications where they can be used, and more importantly their effects on the power outputs. The variations of the resonant frequencies of T-shaped and cross-shaped harvesters has been studied as a function of their geometry. Different geometrical dimension ratios have significant impact on the resonance frequency, e.g., beam to mass lengths, and beam to mass widths. Accordingly, two cross-shaped piezoelectric energy harvesters featuring a central mass with four beams have been designed operating at resonance frequencies of about 9.8 and 4.3 kHz respectively. The extra mass added to the later design increases the average strain resulting in an improved performance. A cross-coupled rectifier circuit has been designed and simulated in 0.13 μm CMOS technology to be combined with the harvester to attain an integrated microsystem.
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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 | 0.000 |
| 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 | 0.000 |
| 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 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".