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import numpy as np
from time import sleep
from artiq.experiment import *
from pyLIAF.artiq.controllers import UrukulCh
from pyLIAF.RedPitaya import Read_analog as rp
from scipy import interpolate
class LaserPowerCalibration_v2(EnvExperiment):
"""V2 - Binary search - UV Laser power calibration with photodiode and a red pitaya """
def build(self):
self.setattr_device("ccb")
self.setattr_device("scheduler")
self.setattr_device("core")
self.laserUV = UrukulCh(self, ch=2, freq=110.0, amp=0.3, name="UV") #corresponde a 0.7 Vpp
self.setattr_argument("Target_PD_Value", NumberValue(0.2, min=0.01, max=0.5), "Calibration_parameters")
self.setattr_argument("Max_amplitude", NumberValue(0.25, min=0.01, max=0.5), "Calibration_parameters")
self.setattr_argument("Min_amplitude", NumberValue(0.01, min=0.01, max=0.5), "Calibration_parameters")
self.setattr_argument("tolerance", NumberValue(0.005, max=0.5), "Calibration_parameters")
self.setattr_argument("Calibration_freqs", Scannable(
default=CenterScan(110*MHz, 10*MHz, 0.1*MHz),
unit="MHz",
scale=MHz,
global_min = 1*MHz,
global_max = 400*MHz
)
)
@rpc
def create_datasets(self):
#self.set_dataset("PD_UV_counts", list(np.zeros(len(self.Calibration_freqs.sequence)*len(self.Calibration_amps.sequence), dtype=int)), broadcast=True, archive=True)
self.set_dataset("Current_PD_UV", np.array([0.05]), broadcast=True, archive=False)
self.set_dataset("Calibration_freqs", self.Calibration_freqs.sequence, broadcast=True, archive=True)
self.set_dataset("Experiment_freqs", self.Calibration_freqs.sequence, broadcast=True, archive=True)
self.set_dataset("Experiment_amps", np.zeros(len(self.Calibration_freqs.sequence), dtype=float), broadcast=True, archive=True)
@rpc(flags={"async"})
def create_applets(self):
self.ccb.issue("create_applet", "v2_powercalibration",
"${python} -m pyLIAF.artiq.applets.plot_xy "
"Experiment_amps "
"--x Calibration_freqs")
@rpc(flags={"async"})
def Binary_Search(self, pd_value, initial_amplitude, final_amplitude, current_freq):
mid_amplitude = round(0.5*(initial_amplitude+final_amplitude), 4)
print(f'mid_amplitude: {mid_amplitude}')
if abs(initial_amplitude - mid_amplitude) < 0.00001 or abs(final_amplitude - mid_amplitude) < 0.00001:
print('toco un borde jejox')
return mid_amplitude
#else:
if mid_amplitude > self.Max_amplitude or mid_amplitude < self.Min_amplitude:
raise
self.change_frequency(current_freq, mid_amplitude)
self.measure_PD()
measured_PD = self.get_dataset("Current_PD_UV")[0]
if np.abs(measured_PD - pd_value) > 0.0005:
if measured_PD > pd_value:
return self.Binary_Search(pd_value, initial_amplitude, mid_amplitude, current_freq)
elif measured_PD < pd_value:
return self.Binary_Search(pd_value, mid_amplitude, final_amplitude, current_freq)
else:
print('no se, fijate, paso algo')
return 0
else:
return mid_amplitude
@rpc(flags={"async"})
def measure_PD(self):
value = rp.ReadVoltage()
print(np.abs(value))
self.mutate_dataset(f"Current_PD_UV", 0, np.abs(value))
@kernel
def init_kernel(self):
self.core.reset()
delay(1*ms)
self.core.break_realtime()
self.laserUV.initialize_channel()
delay(100*us)
self.laserUV.set_channel()
self.core.wait_until_mu(now_mu())
delay(1*ms)
self.laserUV.on()
@kernel
def change_frequency(self, freq, amp):
self.core.break_realtime()
delay(50*ms)
self.laserUV.set_frequency(freq, amp)
delay(10*ms)
def run(self):
self.create_datasets()
self.create_applets()
self.init_kernel()
i = 0
initial_amplitude = self.Min_amplitude
final_amplitude = self.Max_amplitude
initial_PD = self.Target_PD_Value
for freq in self.Calibration_freqs.sequence:
self.change_frequency(freq, initial_amplitude)
calibrated_amplitude = self.Binary_Search(initial_PD, initial_amplitude, final_amplitude, freq)
print(f'Done freq {freq}')
self.mutate_dataset("Experiment_amps", i, calibrated_amplitude)
#initial_amplitude = calibrated_amplitude-0.1
#final_amplitude = calibrated_amplitude+0.1
i = i + 1