A solid-state harvester with no blades and no bearings. It turns vortex pressure and planetary resonance into continuous micro-power for telemetry nodes that must run for years.
A wind turbine needs blades, bearings and about 3 m/s before it produces anything. AeroResonance uses Von Kármán vortex shedding: air moving past a bluff body sheds alternating low-pressure vortices, and the cavity behind it is tuned so its Helmholtz mode sits where that shedding lands.
When the two frequencies coincide the oscillation amplitude multiplies — the shaded band above — and that amplified pressure differential drives a PVDF cantilever array. Nothing rotates, so nothing wears.
The Earth–ionosphere cavity resonates at 7.83 Hz and its harmonics, driven continuously by global lightning. AeroResonance couples a high-permeability core coil to that fundamental, so a node keeps trickle-charging in still air, indoors, inside a sealed structure.
let flux = coil.integrate_flux(schumann_band); let v_ind = -1.0 * turns * (flux.delta() / dt); rectifier.stage_charge(v_ind);
Two sources, one rectifier: acoustic pressure when there is weather, magnetic induction when there is not.
| Dimension | Lithium primary cell | Micro wind turbine | AeroResonance |
|---|---|---|---|
| lifespan | 1–3 years, degrades in heat and cold | limited by bearings | solid state, no wear pair |
| cut-in | not applicable | above 3 m/s | 0.4 m/s |
| service | battery replacement on a schedule | mechanical maintenance | none, sealed |
| still air | drains regardless | zero output | Schumann trickle charge |
git clone https://github.com/KELLERBABG/AeroResonance.git cd AeroResonance/simulation && cargo test