python

piezod

Modeling and optimization of piezoresistive and piezoelectric sensors and actuators.

Installation

pip install piezod

For development:

git clone https://github.com/MicrosystemsLab/PiezoD.git
cd PiezoD/python
uv sync

Usage

from piezod import CantileverEpitaxy

# Create cantilever and set geometry
c = CantileverEpitaxy()
c.l = 300e-6  # length: 300 um
c.w = 44e-6   # width: 44 um
c.t = 89e-9   # thickness: 89 nm
c.fluid = "water"

# Calculate properties
print(f"Stiffness: {c.stiffness() * 1e3:.3f} mN/m")
print(f"Resonant frequency: {c.omega_vacuum_hz() / 1e3:.1f} kHz")
freq_hz, Q = c.omega_damped_hz_and_Q()
print(f"Damped frequency: {freq_hz / 1e3:.1f} kHz, Q = {Q:.1f}")

Run the example:

uv run python examples/quickstart.py

Development

Install dependencies:

uv sync

Run tests:

uv run pytest

Lint and format:

uvx ruff check src tests --fix && uvx ruff format src tests

Type check:

uvx ty check src

Documentation

See the main project documentation at github.com/MicrosystemsLab/PiezoD.

Citation

If you use piezod in your research, please cite:

Joseph C. Doll, Sung-Jin Park and Beth L. Pruitt Design optimization of piezoresistive cantilevers for force sensing in air and water Journal of Applied Physics 106.6 (2009): 064310-064310.

License

GPL-3.0-or-later