dielectric 2.0.5

Dielectric Spectroscopy analysis software in Python

A Python package to assist in the study of sedimentation phenomena in colloidal suspensions. The code is being developed by Paul J.M. van Kan for the MUDNET group at Delft Technical University and DELTARES, The Netherlands. The dielectric package can be used under the conditions of the GPLv3 license.

Features

• Basic classes for binary electrolytes.

• Basic classes for colloidal systems with particles.

• Basic functions for DLVO theory.

• Basic functions for calculation of ion vibration potential (IVP).

• Basic functions for analysis of Dielectric Spectroscopy measurements (HP4194A)

Installation

To use the package dielectric, install it in a Python environment:

(env) pip install dielectric

or

(env) conda install dielectric

This should automatically install the dependency packages matplotlib , scipy and pandas, if they haven’t been installed already. If you are installing by hand, ensure that these packages are installed as well.

Example use

import numpy as np

from dielectric.constants import *
from dielectric.electrolytes import Electrolyte
from dielectric.particles import Particle
from dielectric.file_utils import load_config

import matplotlib
import matplotlib.pyplot as plt
from pathlib import Path

matplotlib.use("QtAgg")
DATADIR = Path(__file__).parent

el = Electrolyte.from_yaml(str(DATADIR / "cegm.yaml"))
el.calc_kappa()

param = load_config(str(DATADIR / "cegm.yaml"))
part = Particle.from_dict(param["particles"][0])

zeta_zero = BOLTZ_T / (el.z_plus * E_CHARGE)
print(f"zeta_zero: {1000 * zeta_zero} mV")
psi_zero = 0.5 * zeta_zero

dielectric pages

• PyPi: dielectric Python package

• BitBucket: dielectric source code

• ReadTheDocs: dielectric documentation

Author and license

• Author: Paul J.M. van Kan

• Contact: [e-mail]

• License: GPLv3

References

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