File:VFPt braunbek coil.svg
Original file (SVG file, nominally 800 × 600 pixels, file size: 45 KB)
Captions
Summary edit
DescriptionVFPt braunbek coil.svg |
English: Magnetic field around a Braunbek coil[1] consisting of four round current loops with identical current, which are aligned around a common symmetry axis. This arrangement removes variations in the magnetic field, up to its 7th-order derivative with respect to the center, making it the smoothest possible field achievable with four circular coils of identical current. The inner loops have an axial position and radius . The outer loops have an axial position and radius . The current through all loops is . The central magnetic field is . |
Date | |
Source | Own work |
Author | Geek3 |
SVG development InfoField | This plot was created with VectorFieldPlot. |
Source code InfoField | Python code# paste this code at the end of VectorFieldPlot 1.7
doc = FieldplotDocument('VFPt_braunbek_coil', commons=True)
field = Field({'ringcurrents':[[-0.8457,0,0,0.7639,1], [-0.2780,0,0,1,1],
[0.2780,0,0,1,1], [0.8457,0,0,0.7639,1]]})
for x0, y0, off in [[-0.2780, -0.908, 0], [0.2780, -0.908, 0],
[0.,-0.9067,0], [0.,-0.7451,0], [0.,-0.6065,.5], [0.,-0.4714,.5],
[0.,-0.3367,.5], [0.,-0.2020,.5], [0.,-0.0673,.5], [0.,0.0673,.5],
[0.,0.2020,.5], [0.,0.3367,.5], [0.,0.4714,.5], [0.,0.6065,.5],
[0.,0.7451,0], [0.,0.9067,0], [-0.2780, 0.908, 0], [0.2780, 0.908, 0]]:
line = FieldLine(field, [x0, y0], directions='both', maxr=8)
doc.draw_line(line, arrows_style={'dist':2,
'min_arrows':2, 'max_arrows':4, 'offsets':[off,0.5,0.5,1.0-off]})
doc.draw_currents(field)
doc.write()
|
Licensing edit
- 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/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 23:34, 12 March 2018 | 800 × 600 (45 KB) | Geek3 (talk | contribs) | User created page with UploadWizard |
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File usage on Commons
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Metadata
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Short title | VFPt_braunbek_coil |
---|---|
Image title | VFPt_braunbek_coil
created with VectorFieldPlot 1.7 http://commons.wikimedia.org/wiki/User:Geek3/VectorFieldPlot about: http://commons.wikimedia.org/wiki/File:VFPt_braunbek_coil.svg rights: Creative Commons Attribution ShareAlike 4.0 |
Width | 800 |
Height | 600 |