47 lines
1019 B
Python
47 lines
1019 B
Python
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import serial
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import re
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import matplotlib.pyplot as plt
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#connect to device, check if correct port
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ser =serial.Serial('COM4',19200)
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Bx=[]
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By=[]
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Bz=[]
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x=[]
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i=0
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f=open('Data.txt','w')
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fig, axs=plt.subplots(1,3)
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#plug in number of measurement points (here 35)
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#save all data in a txt sheet
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for k in range(0,35):
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a=ser.readline()
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data=str(a,'utf-8')
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points=re.findall(r'-?\d+\.?\d*', data)
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Bx_point=float(points[0])
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By_point=float(points[1])
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Bz_point=float(points[2])
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Bx.append(Bx_point)
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By.append(By_point)
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Bz.append(Bz_point)
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x.append(i)
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i+=1
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print(Bx_point,By_point,Bz_point)
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f.write(str(Bx_point)+'\t'+str(By_point)+'\t'+str(Bz_point)+'\n')
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f.close()
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#plot to get a first look at magnetic field (not calibrated)
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axs[0].errorbar(x,Bx,1.615)
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axs[0].set_title('Bx')
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axs[0].set(ylabel='G')
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axs[1].errorbar(x,By,1.615)
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axs[1].set_title('By')
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axs[1].set(ylabel='G')
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axs[2].errorbar(x,Bz,1.615)
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axs[2].set_title('Bz')
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axs[2].set(ylabel='G')
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print(By)
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plt.show()
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