Marchettibenjamin.files.wordpress.com
%matplotlib inline
from pylab import *
import numpy
from __future__ import division
import matplotlib.pyplot as plt
import matplotlib
from itertools import chain
SMALL_SIZE = 13
MEDIUM_SIZE = 22
BIGGER_SIZE = 40
plt.rc('font', size=MEDIUM_SIZE) # controls default text sizes
plt.rc('axes', titlesize=MEDIUM_SIZE) # fontsize of the axes title
plt.rc('axes', labelsize=MEDIUM_SIZE) # fontsize of the x and y labels
plt.rc('xtick', labelsize=MEDIUM_SIZE) # fontsize of the tick labels
plt.rc('ytick', labelsize=MEDIUM_SIZE) # fontsize of the tick labels
plt.rc('legend', fontsize=MEDIUM_SIZE) # legend fontsize
#plt.rc('figure', titlesize=BIGGER_SIZE) # fontsize of the figure title
#Latex
plt.rc('text', usetex=True)
plt.rc('font', family='serif')
symbolsize=250
DATA
v=loadtxt('Data_v.txt')
w=loadtxt('Data_w.txt')
t=loadtxt('Data_time.txt')
N1=250
N2=1000
S=16*1e-4
l=0.48
R=18080
C=21.03*1e-6
r0=16.2
Vfer=S*l #volume de fer
f=50 #fréquence d'acquisition
mu0=4*pi*10e-7
CALCUL B ET H
B=R*C*w/(N2*S)
H=N1*v/(r0*l)
M=B/mu0+H
print max(M)
print max(M)*mu0
FIGURE
fig1,axes=plt.subplots(1,2,figsize=(24,10))
axes[0].scatter(H,-B,marker='o',s=symbolsize,alpha=0.7)
axes[0].set_xlabel(r'H (A.m$^{-1}$)')
axes[0].set_ylabel(r'B (T)')
axes[0].grid('on')
axes[0].axhline(y=0,color='k',linewidth=2,zorder=0,alpha=0.7)
axes[0].axvline(x=0,color='k',linewidth=2,zorder=0,alpha=0.7)
axes[1].scatter(H,-M,marker='o',s=symbolsize,alpha=0.7)
axes[1].set_xlabel(r'H (A.m$^{-1}$)')
axes[1].set_ylabel(r'M (A.m$^{-1}$)')
axes[1].grid('on')
axes[1].axhline(y=0,color='k',linewidth=2,zorder=0,alpha=0.7)
axes[1].axvline(x=0,color='k',linewidth=2,zorder=0,alpha=0.7)
fig1.suptitle('Cycle d\'hysteresis du fer', fontsize=BIGGER_SIZE)
savefig('1.pdf',dpi=300)
PUISSANCE PERDU
diffh=diff(H)
argu=B[1::]*diff(H)
integrale=trapz(argu)
print(integrale)
P=integrale*Vfer/(1/f)
print P
print Vfer
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