def retrieve_vna_data(vna, vna_params):
sdata = []
freq_data = []
template = ":CALC{ch}:DATA:FDAT?"
for channel in [1,2,3,4]:
data = vna.executor.ask(template.format(ch=str(channel)))
data = data.split(',')
data = [complex(float(pair[0]), float(pair[1])) for pair in chunker(data, 2)]
sdata.append(data)
template_freq = ":SENS{ch}:FREQ:DATA?"
freq_data = vna.executor.ask(template_freq.format(ch=1))
freq_data = freq_data.split(',')
freq_data = [float(fdatum) for fdatum in freq_data]
ydata = y_from_s(sdata)
zdata = z_from_s(sdata)
cga_data = cga_from_s(freq_data, sdata)
cgs_data = cgs_from_s(freq_data, sdata)
capacitance = [cga_data, cgs_data]
gdata["cap"] = capacitance
write_vector(freq_data, vna_params["file"] + "_freqs")
write_4vectors(sdata, vna_params["file"] + "_s")
write_4vectors(zdata, vna_params["file"] + "_z")
write_4vectors(ydata, vna_params["file"] + "_y")
write_2vectors(capacitance, vna_params["file"] + "_cap")
retrieve_both()
def retrieve_keithley_data(device, smu_params):
ch = smu_params["index"] + 1
cmd = "DO 'CH{ch}T'".format(ch=ch)
data = device.executor.ask(cmd)
print "Keithley Data:"
pprint.pprint(data)
data = data.split(",")
data = [float(datum) for datum in data]
gdata["pol"] = data
write_vector(data, smu_params["file"] + "_pol.csv")
retrieve_both()
