Coil design

Examples related to coil design.

Head gradient coil

Head gradient coil

Spherical harmonics-generating coil design

Spherical harmonics-generating coil design

Coil with interior holes

Coil with interior holes

High-order spherical harmonic biplanar coil design

High-order spherical harmonic biplanar coil design

MAMBA coil

MAMBA coil

Analytical self-shielded biplanar coil design

Analytical self-shielded biplanar coil design

Biplanar coil design

Biplanar coil design

Magnetically shielded coil

Magnetically shielded coil

Coil with minimal eddy currents

Coil with minimal eddy currents

Miscellaneous examples

Examples of the usage of different parts of bfieldtools

Interpolate stream function

Interpolate stream function

Gradient computation example

Gradient computation example

Mutual inductance of wire loops

Mutual inductance of wire loops

Flatten mesh using conformal mapping

Flatten mesh using conformal mapping

Example of spherical harmonics tools and visualization

Example of spherical harmonics tools and visualization

Field of a Helmholtz coils pair

Field of a Helmholtz coils pair

Current loop inside a cylindrical magnetic shield

Current loop inside a cylindrical magnetic shield

Solving linearly polarizing material in a homogenenous field

Solving linearly polarizing material in a homogenenous field

Interference rejection example using equivalent surface currents

Interference rejection example using equivalent surface currents

Physics publication examples

Example scripts to reproduce the results of the bfieldtools physics paper.

Visualize SUH components on 3 surfaces

Visualize SUH components on 3 surfaces

Compare SUH and SPH basis functions for the magnetic field

Compare SUH and SPH basis functions for the magnetic field

Compare SUH and SPH basis functions for the magnetic scalar potential

Compare SUH and SPH basis functions for the magnetic scalar potential

Analytic integrals as scalar fields

Analytic integrals as scalar fields

Design a field enclosed in a volume

Design a field enclosed in a volume

Field distortion by a perfect mu-metal shield

Field distortion by a perfect mu-metal shield

Example of designing a shielded biplanar coil

Example of designing a shielded biplanar coil

Software publication examples

Example scripts to reproduce the results of the bfieldtools software paper.

Figure 2: Surface harmonics modes

Figure 2: Surface harmonics modes

Figure 1: Stream function example

Figure 1: Stream function example

Biplanar coil design

Biplanar coil design

Magnetically shielded coil

Magnetically shielded coil

SUH-SPH interpolation comparison

SUH-SPH interpolation comparison

Field interpolation example using equivalent surface currents

Field interpolation example using equivalent surface currents

Coil with minimal eddy currents

Coil with minimal eddy currents

Thermal noise publication examples

Examples of thermal magnetic noise in thin conducting discs, cylinders, spheres, and other geometries, including frequency dependence, spatial covariance, and noise measured by SQUID pickup loops.

The SQUID examples require external MNE results and are included as source-only pages. The other examples compute their results from the bundled meshes.

Frequency dependence of disc thermal noise

Frequency dependence of disc thermal noise

Thermal noise inside a conducting cylinder

Thermal noise inside a conducting cylinder

Thermal noise inside conducting spheres

Thermal noise inside conducting spheres

SQUID noise from a conducting plane

SQUID noise from a conducting plane

SQUID noise from a conducting cylinder

SQUID noise from a conducting cylinder

Spatial covariance of disc thermal noise

Spatial covariance of disc thermal noise

Thermal noise above a conducting disc

Thermal noise above a conducting disc

Thermal noise of a star-shaped conductor

Thermal noise of a star-shaped conductor

Thermal noise computation

Examples related to the computation of thermal noise generated by thin conductive geometries.

Examples of thermal noise computation

Examples of thermal noise computation

Validation

Example scripts validating the core functionality of bfieldtools

Test diagonal of inductance matrix

Test diagonal of inductance matrix

Computation time for shiftinvert eigenvalue decomp

Computation time for shiftinvert eigenvalue decomp

Spherical harmonics B-field computation validation

Spherical harmonics B-field computation validation

Validation of Laplacian using spherical harmonics

Validation of Laplacian using spherical harmonics

B-field on the symmetry axis of a disc

B-field on the symmetry axis of a disc

Line charge

Line charge

Triangle dipole density approximation error

Triangle dipole density approximation error

Linear dipole density on a triangle

Linear dipole density on a triangle

Inductance computation time and memory benchmark

Inductance computation time and memory benchmark

Uniform triangle

Uniform triangle

Analytic B-field computation

Analytic B-field computation

Validation of self inductance using spherical harmonics

Validation of self inductance using spherical harmonics

One-element fields

One-element fields

Validate calculation bfield calculation from line segments

Validate calculation bfield calculation from line segments

Integrals testing

Integrals testing

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