File:VFPt Solenoid correct3 Babs.svg
Summary
| 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 | |
| Source code | 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
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