def measuare():
ldc = Device().get_ldc4005_instance()
pm100 = Device().get_pm100_instance()
ldc.ld_current_in_A_setpoint(0)
time.sleep(1)
ldc.on()
time.sleep(3)
current = list()
voltage = list()
power = list()
set_current_array = np.linspace(0, 0.020, 50)
for i in range(0, len(set_current_array)):
ldc.ld_current_in_A_setpoint(str(set_current_array[i]))
current.append(ldc.ld_current_reading())
voltage.append(ldc.ld_voltage_reading())
power.append(pm100.get_power())
J = np.array(current, dtype=float)
V = np.array(voltage, dtype=float)
L = np.array(power, dtype=float)
np.savetxt('data.txt', np.c_[J, V, L], fmt='%1.12e', header=' J [A] \t V \t L [w] ')
time.sleep(0.1)
ldc.off()
