Example #1
0
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()
Example #2
0
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")