def _close(self):
if self._backend == 'pyVISA':
del self._port
elif self._backend == 'linux-gpib':
gpib.close(self._port)
elif self._backend == 'pySerial':
self._port.close()
elif self._backend == 'pyDAQmx':
pass
elif self._backend in ['usbtmc', 'usbtmcWR']:
self._port.close()
elif self._backend == 'vxi11':
self._port.close()
elif self._backend == 'modbus':
self._port.close()
def close(self):
gpib.close(self.handle)
vals = []
timestamp = time.time()
now = datetime.fromtimestamp(timestamp)
for imeas in range(nmeas):
gpib.write(picoam, "READ?")
time.sleep(1)
val = gpib.read(picoam, 100)
val = val[0:val.find('A')]
val = float(val) * microampere
vals.append(str(val))
filename = '%s/current%d_%04d_%02d_%02d.txt' % (path, index, now.year,
now.month, now.day)
with open(filename, mode='a') as f:
f.write(str(timestamp))
for imeas in range(nmeas):
f.write(' ' + vals[imeas])
f.write('\n')
if icycle < ncycle - 1:
print('waiting %d second...' % interval)
time.sleep(interval)
print('finished!')
#turn off HV
gpib.write(picoam, "SOUR:VOLT:STAT OFF")
gpib.write(picoam, "SOUR:VOLT 0")
#close connection
gpib.close(picoam)
def __del__(self):
if self.started:
for i in self.devices:
gpib.close(i.communicator.id)
self.reset_usb()
def close(self):
if self._own:
gpib.close(self.id)
self._own = False
def __del__(self):
if self._own:
gpib.close(self.id)
def close(self):
if self._handle is not None:
gpib.close(self._handle)
self._handle = None
def close(self):
""" closes connection to remote device """
gpib.close(self.device)
def close(self):
gpib.close(self.fun_gen)
def close(self):
gpib.close(self.handle)
print "GPIB::%d is closed" % self.port
import gpib
import time
def query(handle, command, numbytes=100):
gpib.write(handle, command)
time.sleep(0.1)
response = gpib.read(handle, numbytes)
return response
awg = gpib.find('awg520')
try:
identity = query(awg, '*IDN?')
print(identity.decode('utf-8'))
answer = query(awg, "SOURce:VOLTage:AMPLitude?")
print(float(answer))
answer = gpib.write(awg, "DISPLAY:BRIGHTNESS 0.1")
print((answer))
gpib.close(awg)
except:
print('oops')
gpib.close(awg)
def close(self):
gpib.close(self.handle)
print "GPIB::%d is closed" % self.port
def shutdown(self):
time.sleep(1)
self.set_power(False)
gpib.clear(self.dev)
gpib.close(self.dev)
def __del__(self):
"""automatically close descriptor when instance is deleted"""
if self._own:
gpib.close(self.id)
def shutdown(self):
time.sleep(1)
self.set_power(False)
gpib.clear(self.dev)
gpib.close(self.dev)
def __del__(self): if self.started: for i in self.devices: gpib.close(i.communicator.id) self.reset_usb()
def __del__(self):
if self._own:
gpib.close(self.id)
def __del__(self):
print('smiq disconnected')
gpib.write(self.smiq, '*RST')
gpib.close(self.smiq)
def close(self):
gpib.close(self.handle)
def disconnect(self):
gpib.write(self.smiq, '*RST')
gpib.close(self.smiq)
print('smiq disconnected')
return
def show_devid(handle): # Show device ID
print query(handle, "*IDN?")
return
print gpib.version() # Show package version
ud = gpib.dev(board, device) # Open the device
gpib.config(board, gpib.IbcAUTOPOLL, 1) # Enable automatic serial polling
gpib.config(ud, gpib.IbcTMO, gpib.T30s) # Set timeout to 30 seconds
show_devid(ud)
initialise_device(ud)
gpib.write(handle, "*TST;*OPC") # Selftest and request OPC event
# Wait for Timeout or Request Service on device
sta = gpib.wait(ud, gpib.TIMO | gpib.RQS)
if (sta & gpib.TIMO) != 0:
print "Timed out"
else:
print "Device asserted RQS"
stb = gpib.serial_poll(ud) # Read status byte
print "stb = %#x" % (stb)
if (stb & gpib.IbStbESB) != 0: # Check for Event Status bit
esr = int(query(ud, "ESR?")) # Read Event Status Register
if (esr & 1) != 0: # Check for operation completed
print "Device Operation Completed"
# done
gpib.close(ud)
def query(handle, command, numbytes=100):
gpib.write(handle, command)
time.sleep(0.1)
response = gpib.read(handle, numbytes)
return response
print "Connected to,"
print query(rfAmp, "*IDN?")
print query(sigGen, "*IDN?")
print "RF Forward Power", query(rfAmp, "RDPOD")
print "RF Reverse Power", query(rfAmp, "RDPRD")
print "Read Gain", query(rfAmp, "RDA")
#print "Set Gain", query(rfAmp, "SA 10")
print "Set Signal Generator Frequency", query(sigGen, "FREQ 12 GHz")
print "Set Signal Generator Power", query(sigGen, "POW -10 dBm")
print "Set Signal Generator Output"
resp = query(sigGen, "OUTP ON; *OPC?")
if resp != 1:
sys.exit(0)
else:
print "Returning to local mode..bye!!"
gpib.ibloc(rfAmp)
gpib.ibloc(sigGen)
gpib.close(rfAmp)
gpib.close(sigGen)
print('switching on microwave')
gpib.write(smiq, ':OUTP:STATE 1')
gpib.write(smiq, ':LIST:LEARN')
gpib.write(smiq, ':FREQ:MODE LIST')
gpib.write(smiq, '*WAI')
time.sleep(1)
# hier ab und zu fragen ob er die liste gelernt hat - erst wenn fertig und auf FREQ?
gpib.write(smiq, ':TRIG:LIST') # startet
except:
test = 1
print('oops - something went wrong')
gpib.write(smiq, '*RST')
gpib.close(smiq)
if test == 1:
gpib.write(smiq, '*RST')
gpib.close(smiq)
time.sleep(5)
counter.write(b'd') #ReadTriggeredCountingData
time.sleep(0.1)
data = counter.read(res*3*2) #2=two apds, res=numbins, 3=? - why not 4?
print(data)
# disable triggered counting
counter.write(b'r') #DisableTriggeredCounting
counter.close()
def __del__(self):
gpib.write(self.awg, '*RST')
gpib.close(self.awg)