Adds a plot

a1a94217 · Olivier Kaufmann · a658fb54 · a1a94217
Commit a1a94217 authored 1 year ago by Olivier Kaufmann
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--- a/test_measure_with_ohmpi_card_3_15.py
+++ b/test_measure_with_ohmpi_card_3_15.py
 import numpy as np
+import matplotlib.pyplot as plt
 from utils import change_config
 change_config('config_ohmpi_card_3_15.py', verbose=False)
 from OhmPi.measure import OhmPiHardware
@@ -7,4 +8,8 @@ k = OhmPiHardware()
 k._vab_pulse(vab=12, length=1., sampling_rate=10., polarity=1)
 r = k.readings[:,2]/k.readings[:,1]
 print(f'Mean resistance: {np.mean(r):.3f} Ohms, Dev. {100*np.std(r)/np.mean(r):.1f} %')
+fig, ax = plt.subplots()
+ax.plot(r[:,0], r[:, 1], '-r', label='current')
+ax2 = ax.twinx()
+ax.plot(r[:,0], r[:, 2], '-b', label='voltage')
 change_config('config_default.py', verbose=False)