95 lines
2.2 KiB
Python
95 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Created on Mon Aug 23 17:40:37 2021
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@author: Joschka
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"""
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import matplotlib.pyplot as plt
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import numpy as np
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#from src import B_field_calculation as bf
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from src import coil_class as BC
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from IPython import get_ipython
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get_ipython().run_line_magic('matplotlib', 'qt')
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#get_ipython().run_line_magic('matplotlib', 'inline')
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#set up axis
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x = np.linspace(-50, 50, 301)
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z = np.linspace(-50, 50, 301)
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AHH_Coil = BC.BCoil(-1,54,37,4, 4, 1,1)
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AHH_Coil.set_R_outer(49.3)
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#AHH_Coil.print_info()
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#B_z,B_x = AHH_Coil.B_multiple(1,x,z)
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#B_z_grad = BC.BCoil.Bgrad(B_z, z)
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#B_x_grad = BC.BCoil.Bgrad(B_x,x)
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plt.figure(1,figsize=(10,13))
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#plt.rcParams.update({'font.size': 15})
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plt.suptitle("Anti Helmholtz coil field, I = 2 A, d = 82 mm, R_inner = 46.3 mm ", fontsize = 13)
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#Field plot
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##########################
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d=82
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AHH_Coil = BC.BCoil(-1,d,47.3,4, 4, 1,1)
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#AHH_Coil.set_R_outer(49.3)
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AHH_Coil.print_info()
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#B = AHH_Coil.B_multiple_3d(10, x,z,raster=2)
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AHH_Coil.cooling(10)
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B_z,B_x = AHH_Coil.B_multiple(10,x,z)
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#B_z = B[:,150,1]
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#B_x = B[150,:,0]
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B_z_grad = BC.BCoil.Bgrad(B_z, z)
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B_x_grad = BC.BCoil.Bgrad(B_x,x)
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plt.subplot(2,1,1)
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plt.plot(z,B_z,linestyle = "solid", label = f"$B_z$, d = {d} mm")
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plt.plot(x,B_x, label = f"$B_x$, d = {d} mm")
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#plt.xlim(-0.01,0.01)
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plt.title("B-field" )
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#plt.ylim(-0.5,0.4)
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plt.ylabel(r"$B$ [G]")
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plt.xlabel("z-axis / x-axis [mm]")
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plt.legend()
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plt.subplot(2,1,2)
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plt.plot(z,B_z_grad,linestyle = "solid", label = r"$\nabla_z B_z$")
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plt.plot(x,B_x_grad,linestyle = "solid", label = r"$\nabla_x B_x$")
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plt.ylabel(r"$\nabla_i B_i [G/cm]$")
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plt.xlabel("z-axis /x-axis [mm]")#plt.xlim(-10,10)
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plt.title("Gradient of B-field")
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plt.legend()
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plt.savefig("output/AHH_field.pdf")
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plt.show()
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#AHH_Coil.plot_3d(2, 80, 80)
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"""
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print(" ")
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print(f"B_grad_z(0) = {B_z_grad[1500]} G/cm")
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print(f"B_grad_z(10 mm) = {B_z_grad[1800]} G/cm")
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print(f"Diff B_grad z 10mm - 0 mm, {-(B_z_grad[1800]-B_z_grad[1500])} G/cm, relative: {(B_z_grad[1800]-B_z_grad[1500])/-B_z_grad[1500]}")
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print(" ")
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print(f"B_grad_x(0) = {B_x_grad[1500]} G/cm")
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print(f"B_grad_x(10 mm) = {B_x_grad[1800]} G/cm")
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print(f"Diff B_grad x 10mm - 0 mm, {B_x_grad[1800]-B_x_grad[1500]} G/cm, relative: {(B_x_grad[1800]-B_x_grad[1500])/-B_x_grad[1500]}")
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"""
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