File:VFPt Solenoid correct3 Babs.svg

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Original file (SVG file, nominally 490 × 490 pixels, file size: 41 KB)

Captions

Captions

Solenoid magnetic field lines and absolute field strength.

Summary

[edit]
Description
English: Diagram of a solenoid and its magnetic field lines. The shape of all lines was computed according to the laws of electrodynamics. The color indicates the absolute field strength of the magnetic field from zero field (white) to the maximum field strength (blue).
Date
Source Own work
Author Geek3
Other versions
SVG development
InfoField
 
The SVG code is valid.
 
This plot was created with VectorFieldPlot.
Source code
InfoField

Python code

# paste this code at the end of VectorFieldPlot 1.10
# https://commons.wikimedia.org/wiki/User:Geek3/VectorFieldPlot
doc = FieldplotDocument('VFPt_Solenoid_correct3_Babs',
    width=490, height=490, unit=100, commons=True)
field = Field({'coils':[[0, 0, 0, 0.49, 0.98, 1]]})

B0 = 1. / (2. * 0.98)
Babs = lambda xy: sc.linalg.norm(field.F(xy))
doc.draw_scalar_field(func=Babs, vmin=0, vmax=B0)

n = 8
for a in [-0.455, -0.385, -0.275, -0.165, -0.055, 0.055, 0.165, 0.275, 0.385, 0.455]:
    line = FieldLine(field, [0, a], directions='both', maxr=5)
    doc.draw_line(line, linewidth=1.0, arrows_style={
        'dist':1.5, 'min_arrows':1, 'max_arrows':3,
        'offsets':[1, 0.25, 0.25, 1], 'scale':2})
field.add_element('wires', [ [x, 0.49, 1] for x in sc.linspace(-0.84, 0.84, 7)] + [ [x, -0.49, -1] for x in sc.linspace(-0.84, 0.84, 7)])
doc.draw_currents(field)
doc.write()

Licensing

[edit]
I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

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Date/TimeThumbnailDimensionsUserComment
current21:36, 22 January 2019Thumbnail for version as of 21:36, 22 January 2019490 × 490 (41 KB)Geek3 (talk | contribs)User created page with UploadWizard

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