def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# check communication
try:
self.samples = int(self.getValue('Number of samples'))
self.triggers = int(self.getValue('Number of triggers'))
self.powerMean = [0, 0, 0]
self.IMean = [0, 0, 0]
self.QMean = [0, 0, 0]
self.Psi = np.zeros((3,3), dtype=np.complex_)
self.oms = [0, 0, 0]
self.f = [0, 0, 0]
self.IITime = []
self.covar = [0]*48
self.time = [None]*3
# open connections
self.digitizer1 = afDigitizerWrapper.afDigitizer()
self.digitizer1.create_object()
self.digitizer2 = afDigitizerWrapper.afDigitizer()
self.digitizer2.create_object()
self.tti = visa.instrument("GPIB::12")
self.tti.write("SETUPCH 1")
# get address strings
sVisaDig1 = self.dComCfg['address']
sVisaDig1LO = self.getValue('Local oscillator digitizer 1 VISA')
sVisaDig2 = self.getValue('Digitizer 2 VISA')
sVisaDig2LO = self.getValue('Local oscillator digitizer 2 VISA')
# boot instruments
self.digitizer1.boot_instrument(sVisaDig1LO, sVisaDig1)
self.digitizer2.boot_instrument(sVisaDig2LO, sVisaDig2)
# set modulation mode to generic
self.digitizer1.modulation_mode_set(5)
self.digitizer2.modulation_mode_set(5)
# set LO mode to OXCO for dig 1 and Ext daisy for dig 2
self.digitizer1.lo_reference_set(0)
self.digitizer2.lo_reference_set(2)
# set lo below
self.digitizer1.rf_userLOPosition_set(0)
self.digitizer2.rf_userLOPosition_set(0)
self.save = False
except afDigitizerWrapper.Error as e:
# re-cast afdigitizer errors as a generic communication error
msg = str(e)
raise InstrumentDriver.CommunicationError(msg)
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# check communication
try:
# open connections
self.digitizer1 = afDigitizerWrapper.afDigitizer()
self.digitizer1.create_object()
self.digitizer2 = afDigitizerWrapper.afDigitizer()
self.digitizer2.create_object()
self.sigGen = afSigGenWrapper.afSigGen()
self.sigGen.create_object()
# get address strings
sVisaDig1 = self.dComCfg['address']
sVisaDig1LO = self.getValue('Local oscillator digitizer 1 VISA')
sVisaDig2 = self.getValue('Digitizer 2 VISA')
sVisaDig2LO = self.getValue('Local oscillator digitizer 2 VISA')
sVisaSigGen = self.getValue('Signal generator VISA')
sVisaSigGenLO = self.getValue('Local oscillator signal generator VISA')
self.nSamples = int(self.getValue('Number of samples'))
self.nTriggers = int(self.getValue('Number of triggers'))
self.nSegments=int(self.getValue('Number of segments'))
self.cAvgSignals = [None]*3
self.cAvgNoise = [None]*3
self.vCorrelation = None
self.dFreq = self.getValue('RF Frequency')
self.nLags = int(self.getValue('Number of lags'))
self.dPrefilter = int(self.getValue('Prefilter'))
self.cTrace = [None]*2
# boot instruments
self.digitizer1.boot_instrument(sVisaDig1LO, sVisaDig1)
self.digitizer2.boot_instrument(sVisaDig2LO, sVisaDig2)
self.sigGen.boot_instrument(sVisaSigGenLO, sVisaSigGen)
# set LO Ref mode to Ext_Daisy, leveling to auto and modulation to CW
self.sigGen.lo_reference_set(0)
self.sigGen.rf_current_level_mode_set(0)
self.sigGen.rf_modulation_source_set(3)
# set modulation mode to generic
self.digitizer1.modulation_mode_set(5)
self.digitizer2.modulation_mode_set(5)
# set LO mode to OXCO for dig 1 and Ext daisy for dig 2
self.digitizer1.lo_reference_set(2)
self.digitizer2.lo_reference_set(2)
except afDigitizerWrapper.Error as e:
# re-cast afdigitizer errors as a generic communication error
msg = str(e)
raise InstrumentDriver.CommunicationError(msg)
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# check communication
try:
# open connections
self.digitizer1 = afDigitizerWrapper.afDigitizer()
self.digitizer1.create_object()
self.digitizer2 = afDigitizerWrapper.afDigitizer()
self.digitizer2.create_object()
# get address strings
sVisaDig1 = self.dComCfg['address']
sVisaDig1LO = self.getValue('Local oscillator digitizer 1 VISA')
sVisaDig2 = self.getValue('Digitizer 2 VISA')
sVisaDig2LO = self.getValue('Local oscillator digitizer 2 VISA')
self.nSamples = int(self.getValue('Number of samples'))
self.nTriggers = int(self.getValue('Number of triggers'))
self.nSegments=int(self.getValue('Number of segments'))
self.cAvgSignals = [None]*3
self.cTrace = [None]*2
self.cTraces = None
# boot instruments
self.digitizer1.boot_instrument(sVisaDig1LO, sVisaDig1)
self.digitizer2.boot_instrument(sVisaDig2LO, sVisaDig2)
# set modulation mode to generic
self.digitizer1.modulation_mode_set(5)
self.digitizer2.modulation_mode_set(5)
# set LO mode to OXCO for dig 1 and Ext daisy for dig 2
self.digitizer1.lo_reference_set(0)
self.digitizer2.lo_reference_set(2)
except afDigitizerWrapper.Error as e:
# re-cast afdigitizer errors as a generic communication error
msg = str(e)
raise InstrumentDriver.CommunicationError(msg)
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# check communication
try:
# open connection
self.digitizer = afDigitizerWrapper.afDigitizer()
self.digitizer.create_object()
# get address strings
sVisaDigitizer = self.dComCfg['address']
sVisaLO = self.getValue('Local oscillator VISA')
# keep track of number of samples, averages, etc
self.nSamples = int(self.getValue('Number of samples'))
self.nTriggers = int(self.getValue('Number of triggers'))
self.nAverages_per_trigger = int(
self.getValue('Averages per trigger'))
# Variables to store data
self.cAvgSignal = None
self.cTrace = None
self.vPTrace = None
self.dPower = None
self.nAbove = 0
self.bCutTrace = self.getValue('Cut out part of the trace')
self.nStartSample = int(self.getValue('Start Sample'))
self.nStopSample = int(self.getValue('Stop Sample'))
self.dFreq = self.getValue('RF Frequency')
self.nBins = 0
self.overloads = 0
# boot instruments
self.digitizer.boot_instrument(sVisaLO, sVisaDigitizer)
# set modulation mode to generic
self.digitizer.modulation_mode_set(5)
except afDigitizerWrapper.Error as e:
# re-cast afdigitizer errors as a generic communication error
msg = str(e)
raise InstrumentDriver.CommunicationError(msg)
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# check communication
try:
# open connection
self.digitizer = afDigitizerWrapper.afDigitizer()
self.digitizer.create_object()
# get address strings
sVisaDigitizer = self.dComCfg['address']
sVisaLO = self.getValue('Local oscillator VISA')
# keep track of number of samples, averages, etc
self.nSamples = int(self.getValue('Number of samples'))
self.nTriggers = int(self.getValue('Number of triggers'))
self.nAverages_per_trigger=int(self.getValue('Averages per trigger'))
# Variables to store data
self.cAvgSignal = None
self.cTrace = None
self.vPTrace = None
self.dPower = None
self.nAbove = 0
self.bCutTrace = self.getValue('Cut out part of the trace')
self.nStartSample = int(self.getValue('Start Sample'))
self.nStopSample = int(self.getValue('Stop Sample'))
self.dFreq = self.getValue('RF Frequency')
self.nBins = 0
self.overloads = 0
# boot instruments
self.digitizer.boot_instrument(sVisaLO, sVisaDigitizer)
# set modulation mode to generic
self.digitizer.modulation_mode_set(5)
except afDigitizerWrapper.Error as e:
# re-cast afdigitizer errors as a generic communication error
msg = str(e)
raise InstrumentDriver.CommunicationError(msg)
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# check communication
try:
# open connection
self.digitizer = afDigitizerWrapper.afDigitizer()
self.digitizer.create_object()
# get address strings
sVisaDigitizer = self.dComCfg['address']
sVisaLO = self.getValue('Local oscillator VISA')
# keep track of number of samples and old I,Q,R and theta values
self.nSamples = self.getValue('Number of samples')
self.lOldValueIQ = [None] * 4
self.lTrace= [None] * 4
# boot instruments
self.digitizer.boot_instrument(sVisaLO, sVisaDigitizer)
# set modulation mode to generic
self.digitizer.modulation_mode_set(5)
except afDigitizerWrapper.Error as e:
# re-cast afdigitizer errors as a generic communication error
msg = str(e)
raise InstrumentDriver.CommunicationError(msg)
