def test_filename_increment(self):
clear_test_data()
exp = SweptTestExperiment()
wr = WriteToHDF5("test_writehdf5.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0, 100.0, 4))
exp.add_sweep(exp.freq, np.linspace(0, 10.0, 3))
exp.run_sweeps()
exp = SweptTestExperiment()
wr = WriteToHDF5("test_writehdf5.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0, 100.0, 4))
exp.add_sweep(exp.freq, np.linspace(0, 10.0, 3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5-0000.h5"))
self.assertTrue(os.path.exists("test_writehdf5-0001.h5"))
os.remove("test_writehdf5-0000.h5")
os.remove("test_writehdf5-0001.h5")
def test_writehdf5_samefile(self):
exp = SweptTestExperiment()
clear_test_data()
wr1 = WriteToHDF5("test_writehdf5_samefile.h5", "group1")
wr2 = WriteToHDF5("test_writehdf5_samefile.h5", "group2")
edges = [(exp.voltage, wr1.sink), (exp.current, wr2.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0,100.0,4))
exp.add_sweep(exp.freq, np.linspace(0,10.0,3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_samefile-0000.h5"))
with h5py.File("test_writehdf5_samefile-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['group1']['data']['voltage'])
self.assertTrue(np.sum(f['group1/data/field']) == 5*3*np.sum(np.linspace(0,100.0,4)) )
self.assertTrue(np.sum(f['group1/data/freq']) == 5*4*np.sum(np.linspace(0,10.0,3)) )
self.assertTrue(np.sum(f['group1/data/samples']) == 3*4*np.sum(np.linspace(0,4,5)) )
self.assertTrue("Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['group1/data'].attrs['time_val'] == 0)
self.assertTrue(f['group1/data'].attrs['unit_freq'] == "Hz")
self.assertTrue(0.0 not in f['group2/data/current'])
self.assertTrue(np.sum(f['group2/data/field']) == 3*np.sum(np.linspace(0,100.0,4)) )
self.assertTrue(np.sum(f['group2/data/freq']) == 4*np.sum(np.linspace(0,10.0,3)) )
self.assertTrue("Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['group2/data'].attrs['time_val'] == 0)
self.assertTrue(f['group2/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5_samefile-0000.h5")
def test_writehdf5_unstructured_sweep(self):
exp = SweptTestExperiment()
if os.path.exists("test_writehdf5_unstructured-0000.h5"):
os.remove("test_writehdf5_unstructured-0000.h5")
wr = WriteToHDF5("test_writehdf5_unstructured.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
coords = [[0, 0.1], [10, 4.0], [15, 2.5], [40, 4.4], [50, 2.5],
[60, 1.4], [65, 3.6], [66, 3.5], [67, 3.6], [68, 1.2]]
exp.add_sweep([exp.field, exp.freq], coords)
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_unstructured-0000.h5"))
self.assertTrue(wr.points_taken == 10 * 5)
with h5py.File("test_writehdf5_unstructured-0000.h5", 'r') as f:
self.assertTrue(f[f['main/field+freq'][0]] == f['main/field'])
self.assertTrue(f[f['main/field+freq'][1]] == f['main/freq'])
data, desc = load_from_HDF5("test_writehdf5_unstructured-0000.h5",
reshape=False)
self.assertTrue(data['main']['field'][-5:].sum() == 5 * 68)
os.remove("test_writehdf5_unstructured-0000.h5")
def test_writehdf5(self):
exp = SweptTestExperiment()
if os.path.exists("test_writehdf5-0000.h5"):
os.remove("test_writehdf5-0000.h5")
wr = WriteToHDF5("test_writehdf5.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0, 100.0, 4))
exp.add_sweep(exp.freq, np.linspace(0, 10.0, 3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5-0000.h5"))
with h5py.File("test_writehdf5-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data/voltage'])
self.assertTrue(
np.sum(f['main/data/field']) == 5 * 3 *
np.sum(np.linspace(0, 100.0, 4)))
self.assertTrue(
np.sum(f['main/data/freq']) == 5 * 4 *
np.sum(np.linspace(0, 10.0, 3)))
self.assertTrue(
np.sum(f['main/data/samples']) == 3 * 4 *
np.sum(np.linspace(0, 4, 5)))
self.assertTrue(
"Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5-0000.h5")
def test_writehdf5_complex(self):
exp = SweptTestExperiment()
exp.is_complex = True
clear_test_data()
wr = WriteToHDF5("test_writehdf5_complex.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.voltage.descriptor.dtype = np.complex128
exp.update_descriptors()
exp.add_sweep(exp.field, np.linspace(0, 100.0, 4))
exp.add_sweep(exp.freq, np.linspace(0, 10.0, 3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_complex-0000.h5"))
with h5py.File("test_writehdf5_complex-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data/voltage'])
self.assertTrue(
np.sum(f['main/data/field']) == 5 * 3 *
np.sum(np.linspace(0, 100.0, 4)))
self.assertTrue(
np.sum(f['main/data/freq']) == 5 * 4 *
np.sum(np.linspace(0, 10.0, 3)))
self.assertTrue(
np.sum(f['main/data/samples']) == 3 * 4 *
np.sum(np.linspace(0, 4, 5)))
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5_complex-0000.h5")
def test_writehdf5_multiple_streams(self):
exp = SweptTestExperiment2()
clear_test_data()
wr = WriteToHDF5("test_writehdf5_mult.h5")
edges = [(exp.voltage, wr.sink), (exp.current, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0, 100.0, 4))
exp.add_sweep(exp.freq, np.linspace(0, 10.0, 3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_mult-0000.h5"))
with h5py.File("test_writehdf5_mult-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data/voltage'])
self.assertTrue(
np.sum(f['main/data/field']) == 5 * 3 *
np.sum(np.linspace(0, 100.0, 4)))
self.assertTrue(
np.sum(f['main/data/freq']) == 5 * 4 *
np.sum(np.linspace(0, 10.0, 3)))
self.assertTrue(
np.sum(f['main/data/samples']) == 3 * 4 *
np.sum(np.linspace(0, 4, 5)))
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5_mult-0000.h5")
def test_writehdf5_adaptive_sweep(self):
exp = SweptTestExperiment()
clear_test_data()
wr = WriteToHDF5("test_writehdf5_adaptive.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
async def rf(sweep_axis, exp):
num_points = 5
logger.debug("Running refinement function.")
if sweep_axis.num_points() >= num_points:
return False
# sweep_axis.points.append(sweep_axis.points[-1]*2)
sweep_axis.add_points(sweep_axis.points[-1] * 2)
return True
exp.add_sweep(exp.field, np.linspace(0, 100.0, 11))
exp.add_sweep(exp.freq, [1.0, 2.0], refine_func=rf)
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_adaptive-0000.h5"))
self.assertTrue(wr.points_taken == 5 * 11 * 5)
with h5py.File("test_writehdf5_adaptive-0000.h5", 'r') as f:
self.assertTrue(
f['main/data/freq'][:].sum() == (55 * (1 + 2 + 4 + 8 + 16)))
os.remove("test_writehdf5_adaptive-0000.h5")
def test_writehdf5_metadata(self):
exp = SweptTestExperimentMetadata()
clear_test_data()
wr = WriteToHDF5("test_writehdf5_metadata.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0,100.0,4))
exp.add_sweep(exp.freq, np.linspace(0,10.0,3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_metadata-0000.h5"))
with h5py.File("test_writehdf5_metadata-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data']['voltage'])
self.assertTrue(np.sum(f['main/data/field']) == 5*3*np.sum(np.linspace(0,100.0,4)) )
self.assertTrue(np.sum(f['main/data/freq']) == 5*4*np.sum(np.linspace(0,10.0,3)) )
self.assertTrue(np.sum(np.isnan(f['main/data/samples'])) == 3*4*2 )
md_enum = f['main/samples_metadata_enum'][:]
md = f['main/data/samples_metadata'][:]
md = md_enum[md]
self.assertTrue(np.sum(md == b'data') == 4*3*3)
self.assertTrue("Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
self.assertTrue('metadata' in f['main/samples'].attrs)
self.assertTrue(f[f['main/samples'].attrs['metadata']] == f['main/samples_metadata'])
os.remove("test_writehdf5_metadata-0000.h5")
def test_writehdf5_adaptive_unstructured_sweep(self):
exp = SweptTestExperiment()
clear_test_data()
wr = WriteToHDF5("test_writehdf5_adaptive_unstructured.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
coords = [[0, 0.1], [10, 4.0], [15, 2.5], [40, 4.4], [50, 2.5],
[60, 1.4], [65, 3.6], [66, 3.5], [67, 3.6], [68, 1.2]]
async def rf(sweep_axis, exp):
logger.debug("Running refinement function.")
if sweep_axis.num_points() >= 30:
return False
first_points = np.array(sweep_axis.points[-10:])
new_points = first_points.copy()
new_points[:, 0] += 100
new_points[:, 1] += 10
sweep_axis.add_points(new_points)
logger.debug("Sweep points now: {}.".format(sweep_axis.points))
return True
exp.add_sweep([exp.field, exp.freq], coords, refine_func=rf)
exp.run_sweeps()
self.assertTrue(
os.path.exists("test_writehdf5_adaptive_unstructured-0000.h5"))
self.assertTrue(wr.points_taken == 10 * 5 * 3)
os.remove("test_writehdf5_adaptive_unstructured-0000.h5")
def test_writehdf5_with_settings(self):
exp = SweptTestExperiment()
clear_test_data()
wr = WriteToHDF5("test_writehdf5.h5", save_settings=True)
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0, 100.0, 4))
exp.add_sweep(exp.freq, np.linspace(0, 10.0, 3))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5-0000.h5"))
with h5py.File("test_writehdf5-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data/voltage'])
self.assertTrue(
np.sum(f['main/data/field']) == 5 * 3 *
np.sum(np.linspace(0, 100.0, 4)))
self.assertTrue(
np.sum(f['main/data/freq']) == 5 * 4 *
np.sum(np.linspace(0, 10.0, 3)))
self.assertTrue(
np.sum(f['main/data/samples']) == 3 * 4 *
np.sum(np.linspace(0, 4, 5)))
self.assertTrue(
"Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
self.assertTrue(f['header'].attrs['settings'] == yaml_dump(
yaml_load(configFile), flatten=True))
os.remove("test_writehdf5-0000.h5")
def test_writehdf5_metadata_unstructured_adaptive(self):
exp = SweptTestExperimentMetadata()
if os.path.exists(
"test_writehdf5_metadata_unstructured_adaptive-0000.h5"):
os.remove("test_writehdf5_metadata_unstructured_adaptive-0000.h5")
wr = WriteToHDF5("test_writehdf5_metadata_unstructured_adaptive.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
coords = [[0, 0.1], [10, 4.0], [15, 2.5], [40, 4.4], [50, 2.5],
[60, 1.4], [65, 3.6], [66, 3.5], [67, 3.6]]
md = ["data"] * 9
async def rf(sweep_axis, exp):
logger.debug("Running refinement function.")
if sweep_axis.num_points() >= 12:
return False
sweep_axis.set_metadata(
np.append(sweep_axis.metadata_enum[sweep_axis.metadata],
["a", "b", "c"]))
sweep_axis.add_points([[np.nan, np.nan], [np.nan, np.nan],
[np.nan, np.nan]])
logger.debug("Sweep points now: {}.".format(sweep_axis.points))
return True
exp.add_sweep([exp.field, exp.freq],
coords,
metadata=md,
refine_func=rf)
exp.run_sweeps()
self.assertTrue(
os.path.exists(
"test_writehdf5_metadata_unstructured_adaptive-0000.h5"))
with h5py.File("test_writehdf5_metadata_unstructured_adaptive-0000.h5",
'r') as f:
self.assertTrue(0.0 not in f['main/data']['voltage'])
self.assertTrue(np.sum(np.isnan(f['main/data/field'])) == 3 * 5)
self.assertTrue(np.sum(np.isnan(f['main/data/freq'])) == 3 * 5)
self.assertTrue(
np.sum(np.isnan(f['main/data/samples'])) == 3 * 4 * 2)
# This is pathological
# md_enum = f['main/field+freq_metadata_enum'][:]
# md = f['main/data/field+freq_metadata'][:]
# md = md_enum[md]
# self.assertTrue(np.sum(md == b'a') == 5)
# self.assertTrue(np.sum(md == b'b') == 5)
# self.assertTrue(np.sum(md == b'c') == 5)
self.assertTrue(
"Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5_metadata_unstructured_adaptive-0000.h5")
def test_writehdf5_1D_adaptive_sweep(self):
exp = SweptTestExperiment()
if os.path.exists("test_writehdf5_1D_adaptive-0000.h5"):
os.remove("test_writehdf5_1D_adaptive-0000.h5")
wr = WriteToHDF5("test_writehdf5_1D_adaptive.h5")
edges = [(exp.resistance, wr.sink)]
exp.set_graph(edges)
async def rf(sweep_axis, exp):
logger.debug("Running refinement function.")
temps = wr.group['data']['temperature'][:]
ress = wr.group['data']['resistance'][:]
logger.debug("Temps: {}".format(temps))
logger.debug("Ress: {}".format(ress))
new_temps = refine_1D(temps,
ress,
all_points=False,
criterion="difference",
threshold="one_sigma")
logger.debug("New temperature values: {}".format(new_temps))
if new_temps.size + temps.size > 15:
return False
sweep_axis.add_points(new_temps)
logger.debug("Axis points are now: {}".format(sweep_axis.points))
return True
exp.add_sweep(exp.temperature, np.linspace(0, 20, 5), refine_func=rf)
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_1D_adaptive-0000.h5"))
expected_data = np.array([
0., 5., 10., 15., 20., 7.5, 8.75, 9.375, 9.0625, 8.90625, 8.984375,
12.5, 17.5, 9.0234375, 8.945312
])
data, desc = load_from_HDF5(wr.filename.value, reshape=False)
actual_data = data['main']['temperature']
self.assertTrue(actual_data.size == expected_data.size)
os.remove("test_writehdf5_1D_adaptive-0000.h5")
def test_writehdf5_metadata_unstructured(self):
exp = SweptTestExperimentMetadata()
clear_test_data()
wr = WriteToHDF5("test_writehdf5_metadata_unstructured.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
coords = [[ 0, 0.1],
[10, 4.0],
[15, 2.5],
[40, 4.4],
[50, 2.5],
[60, 1.4],
[65, 3.6],
[66, 3.5],
[67, 3.6],
[np.nan, np.nan],
[np.nan, np.nan],
[np.nan, np.nan]]
md = ["data"]*9 + ["a","b","c"]
exp.add_sweep([exp.field, exp.freq], coords, metadata=md)
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_metadata_unstructured-0000.h5"))
with h5py.File("test_writehdf5_metadata_unstructured-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data/voltage'])
self.assertTrue(np.sum(np.isnan(f['main/data/field'])) == 3*5 )
self.assertTrue(np.sum(np.isnan(f['main/data/freq'])) == 3*5 )
self.assertTrue(np.sum(np.isnan(f['main/data/samples'])) == 3*4*2 )
md_enum = f['main/field+freq_metadata_enum'][:]
md = f['main/data/field+freq_metadata'][:]
md = md_enum[md]
self.assertTrue(np.sum(md == b'a') == 5)
self.assertTrue(np.sum(md == b'b') == 5)
self.assertTrue(np.sum(md == b'c') == 5)
self.assertTrue("Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5_metadata_unstructured-0000.h5")
def test_writehdf5_no_tuples(self):
exp = SweptTestExperiment()
exp.samples = 1024
exp.init_streams()
clear_test_data()
wr = WriteToHDF5("test_writehdf5_no_tuples.h5", store_tuples=False)
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_sweep(exp.field, np.linspace(0,100.0,5))
exp.add_sweep(exp.freq, np.linspace(0,10.0,4))
exp.run_sweeps()
self.assertTrue(os.path.exists("test_writehdf5_no_tuples-0000.h5"))
with h5py.File("test_writehdf5_no_tuples-0000.h5", 'r') as f:
self.assertTrue(0.0 not in f['main/data/voltage'])
self.assertTrue("Here the run loop merely spews" in f.attrs['exp_src'])
self.assertTrue(f['main/data'].attrs['time_val'] == 0)
self.assertTrue(f['main/data'].attrs['unit_freq'] == "Hz")
os.remove("test_writehdf5_no_tuples-0000.h5")
exp.field.value = 0.007
exp.polarity = 1 # 1: AP to P; -1: P to AP
exp.measure_current = 3e-6
exp.reset_amplitude = 0.78
exp.reset_duration = 5.0e-9
exp.settle_delay = 200e-6
exp.pspl_atten = 3
max_points = 100
sample_name = "CSHE-Die7-C6R7"
date = datetime.datetime.today().strftime('%Y-%m-%d')
pol = "APtoP" if exp.polarity < 0 else "PtoAP"
file_path = "data\CSHE-Switching\{samp:}\{samp:}-PulseSwitching-{pol:}_{date:}.h5".format(
pol=pol, samp=sample_name, date=date)
wr = WriteToHDF5(file_path)
avg = Averager('sample')
edges = [(exp.voltage, avg.sink), (avg.final_average, wr.sink)]
exp.set_graph(edges)
# Construct the coarse grid
coarse_ts = np.linspace(0.1, 10.0, 7) * 1e-9
coarse_vs = np.linspace(0.40, 0.90, 7)
points = [coarse_ts, coarse_vs]
points = list(itertools.product(*points))
# Add an extra plotter
fig1 = MeshPlotter(name="Switching Phase Diagram")
def refine_func(sweep_axis):
"Warning: failed to stop task (this normally happens with no consequences when taking multiple samples per trigger)."
)
pass
if __name__ == '__main__':
exp = nTronBERExperiment()
exp.sample = "CSHE5 - C1R3"
exp.comment = "nTron Bit Error Rate - P to AP - 10ns"
exp.polarity = 1 # -1: AP to P; 1: P to AP
exp.field.value = -0.0074
exp.nTron_duration.value = 10e-9 # Fixed
exp.init_instruments()
wr = WriteToHDF5(
"data\CSHE-Switching\CSHE-Die5-C1R3\CSHE5-C1R3-P2AP_2016-07-20_BER_10ns.h5"
)
edges = [(exp.daq_buffer, wr.data)]
exp.set_graph(edges)
attempts_list = [1 << int(x) for x in np.linspace(12, 16, 5)]
# attempts_list = [int(6e6), int(6e6)]
voltages_list = np.linspace(0.6, 1.0, 5)
t1 = [] # Keep track of time
t2 = []
for att, vol in zip(attempts_list, voltages_list):
print("=========================")
print("Now at ({},{}).".format(att, vol))
t1.append(time.time())
exp.attempts.value = att
exp.nTron_voltage.value = vol
pass
async def run(self):
r = np.sqrt(
np.power(self.amplitude.value, 2) +
np.power(self.duration.value, 2))
val = 1.0 / (1.0 + np.exp(-10.0 * (r - 5.0)))
await self.voltage.push(val)
await asyncio.sleep(0.01)
if __name__ == '__main__':
exp = TestExperiment()
fig1 = MeshPlotter(name="Plot The Mesh")
wr = WriteToHDF5("test_mesh.h5")
edges = [(exp.voltage, wr.sink)]
exp.set_graph(edges)
exp.add_direct_plotter(fig1)
# Construct the coarse grid
coarse_ts = np.linspace(0.0, 10.0, 7)
coarse_vs = np.linspace(0.0, 7.5, 7)
points = [coarse_ts, coarse_vs]
points = list(itertools.product(*points))
refine_func = delaunay_refine_from_file(wr,
'duration',
'amplitude',
'voltage',
def main():
#Tell main which globals to modify
global CHAN_LIST
global RES_RANGE
global PLC
global SAMPLE_MAP
global BASETEMP
global MAXTEMP
global RNOISE
global MAXPOINTS
# Define Measurement Channels and sample names
# CHAN_LIST = [101,102,103,104]
CHAN_LIST = [104]
RES_RANGE = 100
cdPLC = 10
TcPLC = 100
#SAMPLE_MAP = {101:'TOX23_NbN',102:'TOX24_NbN',103:'TOX25_NbN',104:'TOX-23_Nb'}
#SAMPLE_MAP = {101:'TOX23_NbN',102:'TOX24_NbN',103:'TOX25_NbN'}
SAMPLE_MAP = {104: 'TOX-23_Nb'}
# Define Base Temp, Mas Temp, Temp resolution, Resistance noise and max points for Tc refinement
BASETEMP = 3.2 #Kelvin
MAXTEMP = 20 #Kelvin
TRES = 0.05 #Kelvin
RNOISE = 0.009 #Ohms
MAXPOINTS = 50
#--------------------------User shouldn't need to edit below here--------------------------------
names = []
for i in CHAN_LIST:
names.append(SAMPLE_MAP[i])
# Define data file name and path
sample_name = ("SAMPLES_" + '_'.join(['{}'] * len(names))).format(*names)
date = datetime.datetime.today().strftime('%Y-%m-%d')
path = "Tc_Data\{date:}".format(date=date)
# Check if already at Base temp
ls = LakeShore335("GPIB0::2::INSTR")
ls.connect()
t_check = ls.Temp('B')
ls.disconnect()
if BASETEMP < t_check:
# Reset Global config variables
PLC = cdPLC
# Create Experiment Object
cd_exp = Cooldown()
# Setup datafile and define which data to write, plot ect.
cd_file = "{path:}\{samp:}-Cooldown_{date:}.h5".format(
path=path, samp=sample_name, date=date)
wr = WriteToHDF5(cd_file)
# Create plots for monitoring.
#plt_Avt = XYPlotter(name="Temperature Sense A", x_series=True, series="inner")
#plt_Bvt = XYPlotter(name="Temperature Sense B", x_series=True, series="inner")
#plt_RvT = XYPlotter(name="Sample Resistance", x_series=True, series="inner")
edges = [(cd_exp.sheet_res, wr.sink), (cd_exp.temp_A, wr.sink),
(cd_exp.temp_B, wr.sink), (cd_exp.sys_time, wr.sink)]
cd_exp.set_graph(edges)
# Add points 10 at a time until base temp is reached
async def while_temp(sweep_axis, exp):
if exp.lakeshore.Temp("B") < BASETEMP:
print("Base Temperature Reached...")
return False
print(
"Running refinement loop: Temp %f, Num_points: %d, last i %d" %
(exp.lakeshore.Temp("B"), sweep_axis.num_points(),
sweep_axis.points[-1]))
last_i = sweep_axis.points[-1]
sweep_axis.add_points(range(last_i + 1, last_i + 10))
return True
# Defines index as sweep axis where while_temp function determines end condition
sweep_axis = cd_exp.add_sweep(cd_exp.index,
range(3),
refine_func=while_temp)
# Run the experiment
print("Running Cooldown Log starting from {} K".format(t_check))
print("Writing Cooldown Data to file: {}".format(wr.filename.value))
cd_exp.run_sweeps()
print("Cooldown Logging Completed...")
else:
print(
"Experiment at base temperature {:.3f} K, skipping Cooldown Log..."
.format(t_check))
# Reset Global config variables
PLC = TcPLC
# Create Experiment Object
tc_exp = TcMeas()
# Setup datafile and define which data to write, plot ect.
tc_file = "{path:}\{samp:}-Tc_{date:}.h5".format(path=path,
samp=sample_name,
date=date)
wr = WriteToHDF5(tc_file)
edges = [(tc_exp.sheet_res, wr.sink), (tc_exp.temp_meas, wr.sink)]
tc_exp.set_graph(edges)
# Add points until max points are reached or resolution limit of refine function is hit
async def transition(sweep_axis, exp):
points, mean = load_tc_meas(wr.filename.value)
newpoints = refine_1D(points,
mean,
all_points=False,
criterion="difference",
threshold="one_sigma",
resolution=TRES,
noise_level=RNOISE)
if newpoints is None or len(points) + len(newpoints) > MAXPOINTS:
print("Tc Refinement complete... Exiting")
return False
# Always remeasure BASETEMP to ensure lack of thermal hysterysis
print("Refining Tc Measurement...")
sweep_axis.add_points(np.insert(newpoints, 0, BASETEMP))
return True
# Defines index as sweep axis where transition function determines end condition
sweep_axis = tc_exp.add_sweep(tc_exp.temp_set,
range(int(BASETEMP), int(MAXTEMP), 2),
refine_func=transition)
# Run the experiment
print("Running Tc Experiment...")
print("Writing Tc Data to file: {}".format(wr.filename.value))
tc_exp.run_sweeps()
print("Tc Experiment Complete")
#Run post processing analysis
tc_analysis(wr.filename.value)