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_both():
try:
cap = gdata["cap"]
pol = gdata["pol"]
except KeyError as e: # The other routine has not finished yet, return and wait for next call
return
v_cga = [pol, cap[0]]
v_cgs = [pol, cap[1]]
print "V_cga len"
print str(len(v_cga[0])) + "," + str(len(v_cga[1]))
print "V_cgs len"
print str(len(v_cgs[0])) + "," + str(len(v_cgs[1]))
write_2vectors(v_cga, params[0]["file"] + "_v_vs_cga")
write_2vectors(v_cgs, params[0]["file"] + "_v_vs_cgs")
plotter.plot(pol, cga, params[0]["file"]+ "cga_plot")
plotter.plot(pol, cgs, params[0]["file"]+ "cgs_plot")