def __init__(self, amplitude, offset, freq, ACCoupling = 0, inChannel = 0, outChannel = 0, auxChannel = 0, add = 1, range = 10, canvas = None):
'''
initializes values
:param amplitude: output channel amplitude (Vpk)
:param offset: auxillary channel output (V), only functions as offset if aux1 (value 0) connected to inChannel add port
:param freq: output channel frequence (Hz)
:param ACCoupling: turns ac coupling on (1) or off (0), default off (0)
:param inChannel: specifies input channel number, default channel 1 as listed on device (value 0)
:param outChannel: specifies output channel number, default channel 1 as listed on device (value 0)
:param auxChannel: specifies auxillary channel to use, default channel 1 as listed on device (value 0)
:param add: turns add mode on output channel on (1) or off (0), default 1
:param range: sets output range (V), default 10
:param find and connect to device
'''
self.daq = utils.autoConnect(8005,1) # connect to ZI, 8005 is the port number
self.device = utils.autoDetect(self.daq)
self.options = self.daq.getByte('/%s/features/options' % self.device)
#channel settings
self.in_c = inChannel
self.out_c = outChannel
self.demod_c = 0
self.demod_rate = 10e3 # sample rate of low pass filtered signal after mixing
self.osc_c = 0
if (not re.match('MF', self.options)):
self.out_mixer_c = 6
else:
self.out_mixer_c = 0
self.plotting = 0
self.canvas = canvas
self.line = None
self.yLim = None
self.dataFinal = None
# Configure the settings relevant to this experiment
# note that the output amplitude has to be scaled with the range to give the right result
# todo: JG - this can probably be written in a single line using a propper dictionary
self.exp_setting = [
['/%s/sigins/%d/imp50' % (self.device, self.in_c), 1],
['/%s/sigins/%d/ac' % (self.device, self.in_c), ACCoupling],
['/%s/sigins/%d/range' % (self.device, self.in_c), 2*amplitude],
['/%s/demods/%d/order' % (self.device, self.demod_c), 4],
['/%s/demods/%d/rate' % (self.device, self.demod_c), self.demod_rate],
['/%s/demods/%d/harmonic' % (self.device, self.demod_c), 1],
['/%s/demods/%d/phaseshift' % (self.device, self.demod_c), 0],
['/%s/sigouts/%d/on' % (self.device, self.out_c), 1],
['/%s/sigouts/%d/range' % (self.device, self.out_c), range],
['/%s/sigouts/%d/enables/%d' % (self.device, self.out_c, self.out_mixer_c), 1],
['/%s/sigouts/%d/amplitudes/%d' % (self.device, self.out_c, self.out_mixer_c), float(amplitude)/range],
['/%s/AUXOUTS/%d/OFFSET'% (self.device, auxChannel), offset],
['/%s/oscs/%d/freq'% (self.device, auxChannel), freq]]
self.exp_setting.append(['/%s/demods/%d/oscselect' % (self.device, self.demod_c), self.osc_c])
self.exp_setting.append(['/%s/demods/%d/adcselect' % (self.device, self.demod_c), self.in_c])
self.exp_setting.append(['/%s/sigins/%d/diff' % (self.device, self.in_c), 0])
self.exp_setting.append(['/%s/sigouts/%d/add' % (self.device, self.out_c), add])
self.daq.set(self.exp_setting)
print(self.exp_setting)
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
try:
self.ziConnection = zi.autoConnect(8004, 4)
except:
raise InstrumentDriver.CommunicationError("Could not connect to Zurich Instruments Data Server. Is it running?")
return
if self.comCfg.address == "":
self.device = zi.autoDetect(self.ziConnection)
self.log("Autodetected Zurich Instruments device \"" + self.device + "\". Use the address field to set a specific device.")
else:
self.device = self.comCfg.address
try:
devtype = self.ziConnection.getByte(str('/%s/features/devtype' % self.device))
except:
raise InstrumentDriver.CommunicationError("Device " + self.device + " not found.")
return
if re.match('UHF', devtype):
self.log("Zurich Instruments device \"" + self.device + "\" has been accepted by the driver.")
else:
self.log("Zurich Instruments device \"" + self.device + "\" has been rejected by the driver.", 50)
raise InstrumentDriver.CommunicationError("Device " + self.device + " is not an UHF lock-in")
return
#Check Options
devoptions = self.ziConnection.getByte(str('/%s/features/options' % self.device))
detectedOptions = []
if re.search('MOD', devoptions):
detectedOptions.append("MOD")
self.instrCfg.setInstalledOptions(detectedOptions)
def connect(port_number, timeout):
self.daq = utils.autoConnect(
port_number, 1) # connect to ZI, 8005 is the port number
self.device = utils.autoDetect(self.daq)
self.options = self.daq.getByte('/%s/features/options' %
self.device)
self.sweeper = self.daq.sweep(timeout)
self._timeout = timeout
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
try:
self.ziConnection = zi.autoConnect(8004, 4)
except:
raise InstrumentDriver.CommunicationError(
"Could not connect to Zurich Instruments Data Server. Is it running?"
)
return
if self.comCfg.address == "":
self.device = zi.autoDetect(self.ziConnection)
self.log(
'Autodetected Zurich Instruments device "'
+ self.device
+ '". Use the address field to set a specific device.'
)
else:
self.device = self.comCfg.address
try:
devtype = self.ziConnection.getByte("/%s/features/devtype" % self.device)
except:
raise InstrumentDriver.CommunicationError("Device " + self.device + " not found.")
return
if re.match("UHF", devtype):
self.log('Zurich Instruments device "' + self.device + '" has been accepted by the driver.')
else:
self.log('Zurich Instruments device "' + self.device + '" has been rejected by the driver.', 50)
raise InstrumentDriver.CommunicationError("Device " + self.device + " is not an UHF lock-in")
return
# Check Options
devoptions = self.ziConnection.getByte("/%s/features/options" % self.device)
detectedOptions = []
if re.search("MOD", devoptions):
detectedOptions.append("MOD")
self.instrCfg.setInstalledOptions(detectedOptions)
def connect(port_number, timeout):
self.daq = utils.autoConnect(port_number,1) # connect to ZI, 8005 is the port number
self.device = utils.autoDetect(self.daq)
self.options = self.daq.getByte('/%s/features/options' % self.device)
self.sweeper = self.daq.sweep(timeout)
self._timeout = timeout
def __init__(self,
amplitude,
offset,
freq,
ACCoupling=0,
inChannel=0,
outChannel=0,
auxChannel=0,
add=1,
range=10,
canvas=None):
'''
initializes values
:param amplitude: output channel amplitude (Vpk)
:param offset: auxillary channel output (V), only functions as offset if aux1 (value 0) connected to inChannel add port
:param freq: output channel frequence (Hz)
:param ACCoupling: turns ac coupling on (1) or off (0), default off (0)
:param inChannel: specifies input channel number, default channel 1 as listed on device (value 0)
:param outChannel: specifies output channel number, default channel 1 as listed on device (value 0)
:param auxChannel: specifies auxillary channel to use, default channel 1 as listed on device (value 0)
:param add: turns add mode on output channel on (1) or off (0), default 1
:param range: sets output range (V), default 10
:param find and connect to device
'''
self.daq = utils.autoConnect(
8005, 1) # connect to ZI, 8005 is the port number
self.device = utils.autoDetect(self.daq)
self.options = self.daq.getByte('/%s/features/options' % self.device)
#channel settings
self.in_c = inChannel
self.out_c = outChannel
self.demod_c = 0
self.demod_rate = 10e3 # sample rate of low pass filtered signal after mixing
self.osc_c = 0
if (not re.match('MF', self.options)):
self.out_mixer_c = 6
else:
self.out_mixer_c = 0
self.plotting = 0
self.canvas = canvas
self.line = None
self.yLim = None
self.dataFinal = None
# Configure the settings relevant to this experiment
# note that the output amplitude has to be scaled with the range to give the right result
# todo: JG - this can probably be written in a single line using a propper dictionary
self.exp_setting = [
['/%s/sigins/%d/imp50' % (self.device, self.in_c), 1],
['/%s/sigins/%d/ac' % (self.device, self.in_c), ACCoupling],
['/%s/sigins/%d/range' % (self.device, self.in_c), 2 * amplitude],
['/%s/demods/%d/order' % (self.device, self.demod_c), 4],
[
'/%s/demods/%d/rate' % (self.device, self.demod_c),
self.demod_rate
], ['/%s/demods/%d/harmonic' % (self.device, self.demod_c), 1],
['/%s/demods/%d/phaseshift' % (self.device, self.demod_c), 0],
['/%s/sigouts/%d/on' % (self.device, self.out_c), 1],
['/%s/sigouts/%d/range' % (self.device, self.out_c), range],
[
'/%s/sigouts/%d/enables/%d' %
(self.device, self.out_c, self.out_mixer_c), 1
],
[
'/%s/sigouts/%d/amplitudes/%d' %
(self.device, self.out_c, self.out_mixer_c),
float(amplitude) / range
], ['/%s/AUXOUTS/%d/OFFSET' % (self.device, auxChannel), offset],
['/%s/oscs/%d/freq' % (self.device, auxChannel), freq]
]
self.exp_setting.append([
'/%s/demods/%d/oscselect' % (self.device, self.demod_c), self.osc_c
])
self.exp_setting.append([
'/%s/demods/%d/adcselect' % (self.device, self.demod_c), self.in_c
])
self.exp_setting.append(
['/%s/sigins/%d/diff' % (self.device, self.in_c), 0])
self.exp_setting.append(
['/%s/sigouts/%d/add' % (self.device, self.out_c), add])
self.daq.set(self.exp_setting)
print(self.exp_setting)