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annotate agilent_r5071.py @ 42:184ea77c10e7

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Use scipys interpolation routines rather than hand rolling.
author Daniel O'Connor <darius@dons.net.au>
date Wed, 28 Sep 2011 14:38:23 +0930
parents 9ce709b7da4b
children 6bd941d96c03
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9ce709b7da4b Add Q&D example code for Anritsu MS2034A and Agilent R5071.
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1 # Docs are at http://ena.tm.agilent.com/e5071c/manuals/webhelp/eng/
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3 import scpi
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4 import pylab
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6 # Connect
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7 inst = scpi.instURL('vxi://203.31.81.47')
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9 # Read ID
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10 inst.write('*IDN?')
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11 inst.read()
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12 # 'Agilent Technologies,E5071C,MY46109815,A.09.54\n'
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14 # Set to 8 byte floats
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15 inst.write(":FORM:DATA REAL")
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17 # Set to little endian
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18 inst.write(':FORM:BORD SWAP')
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20 # Grab frequency data
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21 inst.write(":SENS1:FREQ:DATA?")
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22 freqs = scpi.bindecode(inst.read(), dtype = numpy.float64)
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24 # Grab trace data
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25 inst.write(":CALC1:TRACE1:DATA:FDATA?")
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26 dat = scpi.bindecode(inst.read(), dtype = numpy.float64)
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28 # We only want the real part (no imag for this measurement)
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29 dat = dat[::2]
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31 # Save for later
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32 numpy.savez('GS_preamp_20110929', freqs, dat)
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34 # Load..
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35 f = numpy.load('GS_preamp_20110929.npz')
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36 freqs = f['arr_0']
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37 dat = f['arr_1']
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39 pylab.plot(freqs.dat)